U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Publication Year 2002 Remove constraint Publication Year: 2002 Subject term Ohio Remove constraint Subject term: Ohio
Start Over

Search

70  Search Results

1 - 70 of 70
Number of results to display per page

Search Results

1. Actinobacillus sp. bacteremia in foals: clinical signs and prognosis

Author:
Stewart, A.J.; Hinchcliff, K.W.; Saville, W.J.A.; Jose-Cunilleras, E.; Hardy, J.; Kohn, C.W.; Reed, S.M.; Kowalski, J.J.
Source:
Journal of veterinary internal medicine 2002 v.16 no.4 pp. 464-471
ISSN:
0891-6640
Subject:
foals; leukocyte count; Actinobacillus suis; acute course; diarrhea; mixed infection; pneumonia; neonates; neutrophils; Actinobacillus equuli; bacteremia; seizures; mortality; disease diagnosis
DOI:
10.1892/0891-6640(2002)016<0464:SBIFCS>2.3.CO;2
PubMed:
12141310

2. Aggregation and male attraction to feeding virgin females in Macrodactylus subspinosus (F.) (Coleoptera: Scarabaeidae: Melolonthinae)

Author:
Heath, J.J.; Williams, R.N.; Phelan, P.L.
Source:
Environmental entomology 2002 v.31 no.6 pp. 934-940
ISSN:
0046-225X
Subject:
sexual reproduction; mating behavior; sex pheromones; virgin females; feeding behavior; host plants; Carduus nutans; kairomones; volatile compounds; chemical ecology; insect pests; males; Ohio
Abstract:
... In several field assays, Macrodactylus subspinosus (F.) adults were significantly more attracted to feeding adult conspecifics than to any other treatment; males were more attracted to feeding virgin females than feeding field-collected (i.e., mated) females. Alternative treatments among the experiments included plant material, artificially damaged plant material, screened artificially damaged pla ...
DOI:
10.1603/0046-225X-31.6.934

3. Can observer clothing color affect estimates of richness and abundance? An experiment with point counts

Author:
Riffell Samuel K.; Riffell Ben D.
Source:
Journal of field ornithology 2002 v.73 no.4 pp. 351-359
ISSN:
0273-8570
Subject:
avoidance behavior; birds; clothing; color; leaves; nesting; plumage; risk; species diversity; summer; territoriality; winter
Abstract:
... Red-plumaged birds (red species) may behave more visibly in the presence of a red-orange safety vest that field observers must often wear, but species lacking red plumage (non-red species) may behave less visibly (i.e., the species-confidence hypothesis). Such responses may bias many common counting techniques. We experimentally tested if observer clothing color could affect richness and abundance ...
DOI:
10.1648/0273-8570(2002)073[0351:COCCAE]2.0.CO;2

4. Carbon budget and seasonal carbon dioxide emission from a central Ohio Luvisol as influenced by wheat residue amendment

Author:
Jacinthe, P.A.; Lal, R.; Kimble, J.M.
Source:
Soil & tillage research 2002 v.67 no.2 pp. 147-157
ISSN:
0167-1987
Subject:
wheat straw; mulching; degradation; carbon dioxide; seasonal variation; winter; summer; soil organic matter; nitrogen fertilizers; silt loam soils; application rate; emissions; straw mulches; Ohio
Abstract:
... Enhancement of soil organic carbon (SOC) stocks through mulching has been proposed, and although this practice can alter several soil properties, its impact on the temporal variability of carbon dioxide (CO2) emission from soils has not been widely investigated. To that end, we monitored CO2 fluxes from a central Ohio Luvisol (fine, mixed, mesic Aeric Ochraqualf) amended with wheat (Triticum aesti ...
Handle:
10113/15664

5. Climatic and Agricultural Contributions to Changing Loads in Two Watersheds in Ohio

Author:
Douglas B. Moog; Peter J. Whiting
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 83-89
ISSN:
1537-2537
Subject:
agricultural watersheds; animal manures; basins; climatic factors; farming systems; fertilizers; livestock; models; nitrates; nutrients; pollution load; reactive phosphorus; snow; snowpack; stream flow; temperature; total phosphorus; total suspended solids; winter; Lake Erie; Ohio
Abstract:
... Trends in climatic variables, streamflow, agricultural practices, and loads of nutrients and suspended solids were estimated for 1976–1995 in the Maumee and Sandusky watersheds, two large agricultural basins draining to Lake Erie. To understand the contributions that various factors may have made to the trends in loads, earlier results of models linking loads to explanatory variables were combined ...
DOI:
10.2134/jeq2002.8300

6. Comparison of Enzyme-Linked Immunosorbent Assays and Virus Neutralization Test for Detection of Antibodies to Avian Pneumovirus

Author:
Alkahalaf, A.N.; Halvorson, D.A.; Saif, Y.M.
Source:
Avian diseases 2002 v.46 no.3 pp. 700-703
ISSN:
0005-2086
Subject:
Avian metapneumovirus; antibodies; bird diseases; blood serum; enzyme-linked immunosorbent assay; flocks; neutralization tests; ostriches; turkeys; Colorado; Minnesota; Ohio
Abstract:
... Two different whole-virus enzyme-linked immunosorbent assays (ELISAs), developed in Ohio (OH) with APV/Minnesota/turkey/2a/97 and in Minnesota (MN) with APV/Colorado/turkey/97, and the virus neutralization (VN) test were used to test 270 turkey serum samples from 27 Minnesota turkey flocks for avian pneumovirus (APV) antibodies. In addition, 77 turkey serum samples and 128 ostrich serum samples fr ...
DOI:
10.1637/0005-2086(2002)046[0700:COELIA]2.0.CO;2

7. Confirmation of Shattercane (Sorghum bicolor) Resistance to ALS-Inhibiting Herbicides in Ohio

Author:
Traci L. Brenly-Bultemeier; Jeff Stachler; S. Kent Harrison
Source:
Plant health progress 2002 v.3 no.1 pp. -
ISSN:
1535-1025
Subject:
Sorghum bicolor; herbicide-resistant weeds; biotypes; herbicide resistance; imazethapyr; primisulfuron; nicosulfuron; cross resistance; Ohio
Abstract:
... A population of shattercane (Sorghum bicolor (L.) Moench) located in Fairfield County, Ohio, was investigated for herbicide resistance after it persisted in a field that had been treated repeatedly with herbicides that inhibit acetolactate synthase (ALS). Herbicide bioassays confirmed cross-resistance of the suspected resistant (R) population to the ALS inhibitors nicosulfuron, primisulfuron, and ...
DOI:
10.1094/PHP-2002-1021-01-RS

8. Consumer acceptability of color in processed tomato products by African-American, Latino and prototypical consumers

Author:
Claybon, K.T.; Barringer, S.A.
Source:
Journal of food quality 2002 v.25 no.6 pp. 487-498
ISSN:
0146-9428
Subject:
tomatoes; Hispanics; sauces; food quality; brand name products; consumer preferences; market analysis; prototypes; color; consumer attitudes; Blacks; Mexican Americans; food acceptability; Ohio
Abstract:
... African American, Latino, and Prototypical consumers rated the color of ketchup, salsa, tomato sauce, pizza sauce, spaghetti sauce, and barbecue sauce. For most products, ethnicity had little influence on acceptance. Prototypical consumers rated products the highest and had the widest preference range. All but one commercially available product was in the acceptable range, but they were not always ...
DOI:
10.1111/j.1745-4557.2002.tb01042.x

9. Cost of distributing oral raccoon-variant rabies vaccine in Ohio: 1997-2000

Author:
Foroutan, P.; Meltzer, M.I.; Smith, K.A.
Source:
Journal of the American Veterinary Medical Association 2002 v.220 no.1 pp. 27-32
ISSN:
0003-1488
Subject:
Procyon lotor; rabies; vaccination; disease control; Ohio
DOI:
10.2460/javma.2002.220.27
PubMed:
12680444

10. Crop rotation and tillage system effects on weed seedbanks

Author:
Cardina John; Herms Catherine P.; Doohan Douglas J.
Source:
Weed science 2002 v.50 no.4 pp. 448-460
ISSN:
0043-1745
Subject:
no-tillage; Oxalis; Persicaria pensylvanica; Veronica; Capsella bursa-pastoris; hay; Euphorbia maculata; Setaria faberi; Zea mays; Glycine max; seeds; Chenopodium album; corn; species diversity; weeds; crop rotation; plant communities; oats; herbicides; soybeans; growing season; plows; Avena sativa; Amaranthus retroflexus; crops; Ohio; Pennsylvania
Abstract:
... We characterized the size and species composition of the weed seedbank after 35 yr of continuous crop rotation and tillage system treatments at two locations in Ohio. Spring seedbanks were monitored during 1997, 1998, and 1999 in continuous corn (CCC), corn––soybean (CS), and corn––oats––hay (COH) rotations in moldboard plow (MP), chisel plow (CP), and no-tillage (NT) plots where the same herbicid ...
DOI:
10.1614/0043-1745(2002)050[0448:CRATSE]2.0.CO;2

11. Detection of Respiratory and Enteric Shedding of Bovine Coronaviruses in Cattle in an Ohio Feedlot

Author:
Mustafa Hasoksuz; Armando E. Hoet; Steven C. Loerch; Thomas E. Wittum; Paul R. Nielsen; Linda J. Saif
Source:
Journal of veterinary diagnostic investigation v.14 no.4 pp. 308-313
ISSN:
1040-6387
Subject:
nose; Coronavirinae; feedlots; cattle; polymerase chain reaction; feces; liveweight gain; mucosa; reverse transcription; enzyme-linked immunosorbent assay; seroconversion; detection; Ohio
Abstract:
... Recently, bovine coronavirus (BCV) has been isolated from new cattle arrivals to feedlots, but the association between respiratory and enteric infections with BCV in feedlot cattle remains uncertain. Fecal and nasal swab samples from 85 Ohio Agricultural Research and Development Center (OARDC) feedlot cattle averaging 7 months of age were collected at arrival (0) and at 4, 7, 14, and 21 days posta ...
DOI:
10.1177/104063870201400406
PubMed:
12152810

12. Dollar Spot Severity, Tissue Nitrogen, and Soil Microbial Activity in Bentgrass as Influenced by Nitrogen Source

Author:
J. Graham Davis; Peter H. Dernoeden
Source:
Crop science 2002 v.42 no.2 pp. 480-488
ISSN:
0011-183X
Subject:
Agrostis stolonifera; Sclerotinia homoeocarpa; lawns and turf; microbial activity; nitrogen; plant parasitic nematodes; sanitation; soil; soil organic matter; sulfur-coated urea; thatch; turf grasses; urea; Maryland; Ohio; Wisconsin
Abstract:
... There is increasing interest in the use of bio-organic nitrogen (N) sources to suppress turfgrass diseases. The objectives of this field study were to evaluate nine N-sources for their effects on dollar spot (caused by Sclerotinia homoeocarpa F. T. Bennett) severity; to elucidate the relationship among N-sources, tissue N, soil microbial activity, and the severity of dollar spot; and to evaluate N ...
DOI:
10.2135/cropsci2002.4800

13. Effect of compost amendments on disease severity and yield of tomato in conventional and organic production systems

Author:
Abbasi, P.A.; Al-Dahmani, J.; Sahin, F.; Hoitink, H.A.J.; Miller, S.A.
Source:
Plant disease 2002 v.86 no.2 pp. 156-161
ISSN:
0191-2917
Subject:
cultivars; plant diseases and disorders; composts; Colletotrichum coccodes; Xanthomonas vesicatoria; crop yield; field experimentation; incidence; organic production; Solanum lycopersicum var. lycopersicum; Ohio
Abstract:
... Field trials were conducted over 2 years to assess the effects of compost amendments on disease development in organic and conventional processing tomato (Lycopersicon esculentum L.) production systems. The incidence of anthracnose fruit rot was reduced in organic tomato plots amended with a high rate of composted cannery wastes compared with the incidence in nonamended control plots in 1998 when ...
DOI:
10.1094/PDIS.2002.86.2.156

14. Effects of simulated post-harvest light availability and soil compaction on deciduous forest herbs

Author:
Small, C.J.; McCarthy, B.C.
Source:
Canadian journal of forest research = 2002 v.32 no.10 pp. 1753-1762
ISSN:
0045-5067
Subject:
logging; interspecific variation; pioneer species; forests; plant characteristics; light intensity; height; ecological succession; soil compaction; biomass; forbs; population dynamics; understory; Ohio
Abstract:
... To better understand the response of eastern deciduous forest herbs to microenvironmental changes associated with logging, the effects of experimental light and soil compaction treatments were examined in six herbaceous plant species characteristic of varying successional stages. We found severe growth reductions and increased mortality of Osmorhiza claytonii (Michx.) C.B. Clarke, a shade-tolerant ...
DOI:
10.1139/x02-099

15. Effects of timber harvest on forest lepidoptera: community, guild, and species responses

Author:
Keith S. Summerville; Thomas O. Crist
Source:
Ecological applications 2002 v.12 no.3 pp. 820-835
ISSN:
1051-0761
Subject:
Lepidoptera; botanical composition; clearcutting; community structure; correspondence analysis; deciduous forests; forest stands; landscapes; logging; moths; prediction; resource management; stand structure; summer; temperate forests; watersheds; wilderness; wildlife management; Ohio
Abstract:
... Two pressing questions for forestry and conservation biology are whether periodic logging in forest ecosystems significantly changes biodiversity and whether the changes can be mitigated through appropriate harvest methods. Such questions of timber resource management, however, are rarely applied to nonpest insect species, particularly in temperate forest systems. We studied the effects of timber ...
DOI:
10.1890/1051-0761(2002)012[0820:EOTHOF]2.0.CO;2

16. Efficacy of fungicides on Sclerotinia sclerotiorum and their potential for control of sclerotinia stem rot on soybean

Author:
Mueller, D.S.; Dorrance, A.E.; Derksen, R.C.; Ozkan, E.; Kurle, J.E.; Grau, C.R.; Gaska, J.M.; Hartman, G.L.; Bradley, C.A.; Pedersen, W.L.
Source:
Plant disease 2002 v.86 no.1 pp. 26-31
ISSN:
0191-2917
Subject:
Glycine max; Sclerotinia sclerotiorum; benomyl; tebuconazole; vinclozolin; seedlings; leaves; cultured cells; mycelium; field experimentation; fungal diseases of plants; thiophanate-methyl; Illinois; Indiana; Ohio; Wisconsin
Abstract:
... Sclerotinia stem rot of soybean, caused by Sclerotinia sclerotiorum, is a major disease in the north central region of the United States. One approach to managing Sclerotinia stem rot on soybean is the use of fungicides. S. sclerotiorum was assayed for sensitivity to benomyl, tebuconazole, thiophanate methyl, and vinclozolin in pure cultures on agar medium, inoculated soybean seedlings, detached i ...
Handle:
10113/11386
DOI:
10.1094/PDIS.2002.86.1.26

17. Food security and perceptions of health status: a preliminary study in rural Appalachia

Author:
Pheley, A.M.; Holben, D.H.; Graham, A.S.; Simpson, C.
Source:
Journal of rural health 2002 v.18 no.3 pp. 447-454
ISSN:
0890-765X
Subject:
health policy; food security; rural areas; health services; Ohio
Abstract:
... Food insecurity is estimated to affect about 10% of the United States population. Rural areas experience even higher rates and intensity of food security problems related to poverty, food access, and higher food costs. Reports of the relationship between household food security and health status, however, are limited. This report examines the relationship between household food security and measur ...
DOI:
10.1111/j.1748-0361.2002.tb00909.x
PubMed:
12186319

18. Genetic evidence for extrapair paternity in the tufted titmouse

Author:
PRAVOSUDOVA ELENA V.; PARKER PATRICIA G.; GAUNT ABBOT S.
Source:
Wilson bulletin 2002 v.114 no.2 pp. 279-281
ISSN:
0043-5643
Subject:
Baeolophus bicolor; DNA fingerprinting; males; monogamy; nestlings; nests; paternity; progeny; Ohio
Abstract:
... Until now, there have been no reports of extrapair parentage in Tufted Titmice (Baeolophus bicolor). During 1995––1998, we used multilocus minisatellite DNA fingerprinting to estimate paternity and degree of relatedness in eight central Ohio broods of this socially monogamous species. Our results suggest a rather low rate of extrapair fertilization in the study population; three of 34 nestlings co ...
DOI:
10.1676/0043-5643(2002)114[0279:GEFEPI]2.0.CO;2

19. Greenhouse and field evaluation of biological control of Fusarium head blight on durum wheat

Author:
Schisler, D.A.; Khan, N.I.; Boehm, M.J.; Slininger, P.J.
Source:
Plant disease 2002 v.86 no.12 pp. 1350-1356
ISSN:
0191-2917
Subject:
fungal antagonists; Fusarium graminearum; cultivars; greenhouse production; Triticum turgidum subsp. durum; color; Bacillus subtilis; field experimentation; virulence; deoxynivalenol; biological control; Ohio
Abstract:
... Fusarium head blight (FHB) is a devastating disease that causes extensive yield and quality losses to wheat and barley. In durum wheat, the pathogen-produced toxin deoxynivalenol (DON) is retained in semolina at -50%, and the causal agent of FHB, Gibberella zeae, has a strong adverse effect on pasta color. Two bacteria and two yeast strains with known efficacy against G. zeae on hexaploid wheats w ...
Handle:
10113/11293
DOI:
10.1094/PDIS.2002.86.12.1350

20. Growth responses of yellow-poplar (Liriodendron tulipifera L.) exposed to 5 years of O3 alone or combined with elevated CO2

Author:
Rebbeck, J.; Scherzer, A.J.
Source:
Plant, cell and environment 2002 v.25 no.11 pp. 1527-1537
ISSN:
0140-7791
Subject:
carbon dioxide; ozone; stand basal area; Liriodendron tulipifera; duration; air; biomass production; detection; roots; environmental exposure; Ohio
Abstract:
... Field-grown yellow-poplar (Liriodendron tulipifera L.) were fumigated from May to October in 1992-96 within open-top chambers to determine the impact of ozone (O3) alone or combined with elevated carbon dioxide (CO2) on sapling growth. Treatments were replicated three times and included: charcoal-filtered air (CF); 1 x ambient ozone (1 x O3); 1.5 x ambient ozone (1.5 x O3); 1.5 x ambient ozone plu ...
DOI:
10.1046/j.1365-3040.2002.00933.x

21. Measuring and Understanding Carbon Storage in Afforested Soils by Physical Fractionation

Author:
J. Six; P. Callewaert; S. Lenders; S. De Gryze; S. J. Morris; E. G. Gregorich; E. A. Paul; K. Paustian
Source:
Soil Science Society of America journal 2002 v.66 no.6 pp. 1981-1987
ISSN:
0361-5995
Subject:
Hapludalfs; Hapludolls; afforestation; agroecosystems; carbon sequestration; carbon sinks; climate change; forests; fractionation; land use; microaggregates; particulate organic matter; sieving; soil organic carbon; wildlife; Ohio; Ontario
Abstract:
... Forested ecosystems have been identified as potential C sinks. However, the accuracy of measurement and understanding of the underlying mechanisms for soil organic C (SOC) storage in forested ecosystems needs to be improved. The objective of this study was to use aggregate and soil organic matter (SOM) fractionation techniques to identify SOC pools that preferentially stabilize SOC in the long ter ...
DOI:
10.2136/sssaj2002.1981

22. Modeling regional carbon dynamics and soil erosion in disturbed and rehabilitated ecosystems as affected by land use and climate

Author:
West, T.O.; Wali, M.K.
Source:
Water, air, and soil pollution 2002 v.138 no.1/4 pp. 141-163
ISSN:
0049-6979
Subject:
sediment yield; carbon dioxide; simulation models; climate change; carbon; losses from soil; abandoned land; carbon sequestration; biomass production; reclaimed soils; water erosion; grasslands; grassland soils; Ohio

23. Performance, Proficiency and Value of The Dietetics Professional

Source:
Journal of the American Dietetic Association 2002 v.102 no.9 pp. 1304-1315
ISSN:
0002-8223
Subject:
adult education; business enterprises; dietetics; dietitians; governance; leadership; markets; occupations; professionals; Alabama; California; Ohio; Pennsylvania; Rhode Island; Texas
Abstract:
... This paper was prepared by the Performance, Proficiency, and Value Tactical Workgroup of the ADA House of Delegates. The members of the Tactical Workgroup include Ellen Owens Summo, DTR, (At-Large Delegate: DTR) Chair, Marsha Schofield, MS, RD (Professional Issues Development), Neva Cochran, MS, RD, (Texas), Bonnie Spear, PhD, RD (Alabama) Kessey Kieselhorst, MS, RD (Pennsylvania), and Marion Wink ...
DOI:
10.1016/S0002-8223(02)90288-9

24. Persistent fecal Salmonella shedding in five dairy herds

Author:
Huston, C.L.; Wittum, T.E.; Love, B.C.
Source:
Journal of the American Veterinary Medical Association 2002 v.220 no.5 pp. 650-655
ISSN:
0003-1488
Subject:
dairy cows; dairy herds; animal husbandry; Salmonella; cattle manure; risk factors; lactation; milk production; calves; Ohio
DOI:
10.2460/javma.2002.220.650
PubMed:
12418526

25. Phosphorus Budgets and Riverine Phosphorus Export in Northwestern Ohio Watersheds

Author:
David B. Baker; R. Peter Richards
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 96-108
ISSN:
1537-2537
Subject:
crop yield; farmers; phosphorus fertilizers; prediction; rain; reactive phosphorus; rivers; runoff; sediments; sludge; soil; total phosphorus; water quality; watersheds; winter; Ohio
Abstract:
... Phosphorus (P) budgets for large watersheds are often used to predict trends in riverine P export. To test such predictions, we calculated annual P budgets for 1975–1995 for soils of the Maumee and Sandusky watersheds of northwestern Ohio and compared them with riverine P export from these watersheds. Phosphorus inputs to the soils include fertilizers, manure, rainfall, and sludge while outputs in ...
DOI:
10.2134/jeq2002.9600

26. Photoinduced degradation of carbaryl in a wetland surface water

Author:
Miller, P.L.; Chin, Y.P.
Source:
Journal of agricultural and food chemistry 2002 v.50 no.23 pp. 6758-6765
ISSN:
0021-8561
Subject:
carbaryl; insecticide residues; photolysis; free radicals; water pollution; surface water; wetlands; pH; water quality; nitrates; organic matter; Ohio
Abstract:
... The photoinduced degradation of carbaryl (1-naphthyl-N-methyl carbamate) was studied in a wetland's surface water to examine the photochemical processes influencing its transformation. For this particular wetland water, at high pH, it was difficult to delineate the photolytic contribution to the overall degradation of carbaryl. At lower pH values, the extent of the degradation attributable to indi ...
DOI:
10.1021/jf025545m
PubMed:
12405772

27. Predicted impact of transgenic, herbicide-tolerant corn on drinking water quality in vulnerable watersheds of the mid-western USA

Author:
Wauchope, R.D.; Estes, T.L.; Allen, R.; Baker, J.L.; Hornsby, A.G.; Jones, R.L.; Richards, R.P.; Gustafson, D.I.
Source:
Pest management science 2002 v.58 no.2 pp. 146-160
ISSN:
1526-498X
Subject:
water quality; drinking water; glufosinate; glyphosate; herbicide residues; Zea mays; transgenic plants; crop production; watersheds; water pollution; pollution control; Iowa; Illinois; Ohio
Abstract:
... In the intensely farmed corn-growing regions of the mid-western USA, surface waters have often been contaminated by herbicides, principally as a result of rainfall runoff occurring shortly after application of these to corn and other crops. In some vulnerable watersheds, water quality criteria for chronic human exposure through drinking water are occasionally exceeded. We selected three settings r ...
DOI:
10.1002/ps.433
PubMed:
11852639

28. Prevalence of Toxoplasma gondii Antibodies in Domestic Cats From Rural Ohio

Author:
Dubey J. P.; Saville W. J A.; Stanek J. F.; Reed S. M.
Source:
Journal of parasitology 2002 v.88 no.4 pp. 802-803
ISSN:
0022-3395
Subject:
cats; Toxoplasma gondii; antibodies; seroprevalence; antibody detection; habitats; serological surveys; Ohio
Abstract:
... Antibodies to Toxoplasma gondii were determined in serum samples from 275 domestic cats from a mobile spay and neuter clinic from 8 counties in Ohio. The modified agglutination test incorporating whole formalinized tachyzoites and mercaptoethanol was used to determine antibodies. Antibodies to T. gondii were found in 133 (48%%) out of 275 cats: in titers of 1:25 in 24, 1:50 in 37, and 1:500 or mor ...
Handle:
10113/49066
DOI:
10.1645/0022-3395(2002)088[0802:POTGAI]2.0.CO;2
PubMed:
12197137

29. Quantifying alfalfa yield losses caused by foliage diseases in Iowa, Ohio, Wisconsin, and Vermont

Author:
Nutter, F.W. Jr.; Guan, J.; Gotlieb, A.R.; Rhodes, L.H.; Grau, C.R.; Sulc, R.M.
Source:
Plant disease 2002 v.86 no.3 pp. 269-277
ISSN:
0191-2917
Subject:
Medicago sativa; crop yield; quantitative analysis; field experimentation; fungicides; estimation; application timing; Wisconsin; Ohio; Vermont
Abstract:
... Although foliar diseases of alfalfa occur throughout the United States wherever alfalfa is grown, little work has been done to quantify yield losses caused by foliar pathogens since the late 1980s. To quantify the yield losses caused by foliar diseases of alfalfa, field experiments were performed in Iowa, Ohio, Vermont, and Wisconsin from 1995 to 1998. Different fungicides and fungicide applicatio ...
DOI:
10.1094/PDIS.2002.86.3.269

30. Quantifying laboratory and field variability to assess potential for carbon sequestration

Author:
Bowman, R.A.; Reeder, J.D.; Wienhold, B.J.
Source:
Communications in soil science and plant analysis 2002 v.33 no.9/10 pp. 1629-1642
ISSN:
0010-3624
Subject:
soil organic matter; carbon; soil analysis; agricultural soils; fields; area; sampling; spatial variation; crop rotation; Triticum aestivum; Zea mays; Panicum miliaceum; fallow; Helianthus annuus; laboratories; Ohio
Abstract:
... Accurate measurements of soil organic carbon (SOC) levels are essential to assess changes in C sequestration rates. To this end we conducted studies to evaluate laboratory variability in SOC concentration measured at USDA-ARS laboratories in Akron, CO, Cheyenne, WY, and Lincoln, NE. At the Akron laboratory we also evaluated field spatial variability within common cropping treatments in order to as ...
Handle:
10113/7981

31. Relationship between carrot weevil (Coleoptera: Curculionidae) infestation, damage, and planting dates of parsley (Apiaceae)

Author:
Torres, A.N.; Hoy, C.W.
Source:
Canadian entomologist 2002 v.134 no.1 pp. 125-135
ISSN:
0008-347X
Subject:
Listronotus oregonensis; Petroselinum crispum; oviposition; feeding behavior; roots; crop damage; population dynamics; population density; seasonal variation; planting date; ova; cultural control; Ohio
DOI:
10.4039/Ent134125-1

32. Relationships among Plant Available Phosphorus, Fertilizer Sales, and Water Quality in Northwestern Ohio

Author:
Frank G. Calhoun; Jerry M. Bigham; Brian K. Slater
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 38-46
ISSN:
1537-2537
Subject:
A horizons; drainage; drainage systems; fertilizers; landscapes; reactive phosphorus; river water; sales; soil surveys; soil texture; soluble phosphorus; tillage; water quality; Ohio; Ohio River
Abstract:
... Soluble reactive phosphorus (SRP) in northwestern Ohio river water has declined over the past 20 yr in response to decreased applications of fertilizer P. Our objective was to evaluate changes in soluble P (Bray-1 P) levels in the soil over time as influenced by fertilizer P management, cultivation practice, soil properties, and landscape factors. Because soil is the intermediary between added P a ...
DOI:
10.2134/jeq2002.3800

33. Report of bacterial leaf spot on collards and turnip leaves in Ohio

Author:
Ivey, M.L.L.; Wright, S.; Miller, S.A.
Source:
Plant disease 2002 v.86 no.2 pp. 186
ISSN:
0191-2917
Subject:
Brassica oleracea var. viridis; detection; bacteria; DNA; polymerase chain reaction; pathogenicity; color; incidence; Brassica rapa subsp. oleifera; leaves; disease diagnosis; Ohio
DOI:
10.1094/PDIS.2002.86.2.186A

34. Reproductive biology and delayed selfing in Viola pubescens (Violaceae), an understory herb with chasmogamous and cleistogamous flowers

Author:
Culley, T.M.
Source:
International journal of plant sciences 2002 v.163 no.1 pp. 113-122
ISSN:
1058-5893
Subject:
canopy; perennials; forests; seeds; seed dispersal; selfing; light intensity; flowers; plant morphology; understory; Ohio
DOI:
10.1086/324180

35. Sampling scheme for carrot weevil (Coleoptera: Curculionidae) in parsley

Author:
Torres, A.N.; Hoy, C.W.
Source:
Environmental entomology 2002 v.31 no.6 pp. 1251-1258
ISSN:
0046-225X
Subject:
Listronotus oregonensis; Petroselinum crispum; parsley; crop damage; sampling; probability analysis; decision making; insect pests; population distribution; economic threshold; Ohio
Abstract:
... The sample distribution of oviposition scar counts of the carrot weevil, Listronotus oregonensis (LeConte) was best fit by the Poisson distribution when the mean number of carrot weevil oviposition scars per plant was less than or equal to 0.047. When the mean was greater than or equal to 0.06 oviposition scars per plant, the distribution of oviposition scar counts was best fit by the negative bin ...
DOI:
10.1603/0046-225X-31.6.1251

36. Selenium content of venison, squirrel, and beef purchased or produced in Ohio, a low selenium region of the United States

Author:
Holben, D.H.
Source:
Journal of food science 2002 v.67 no.1 pp. 431-433
ISSN:
0022-1147
Subject:
squirrels; selenium; venison; gender differences; beef; dietary minerals; mineral content; Ohio
Abstract:
... The selenium (Se) content (AOAC fluorometric method) of: 1) raw and cooked venison, squirrel, and beef from a low selenium region of the United States and 2) nonregion-raised beef was assessed and compared by region, species, and gender. For both raw and cooked meats, the Se content of venison was not different from region-raised beef (p > .05), and their contents were generally less than squirrel ...
DOI:
10.1111/j.1365-2621.2002.tb11423.x

37. Selenium intakes, absorption, retention, and status in adolescent girls

Author:
Holben, David H.; Smith, Anne M.; Ilich, Jasminka Z.; Landoll, John D.; Holcomb, John P.; Matkovic, Velimir
Source:
Journal of the American Dietetic Association 2002 v.102 no.8 pp. 1082-1087
ISSN:
0002-8223
Subject:
Whites; adolescents; adults; balance studies; blood serum; calcium; citrates; diet; erythrocytes; girls; glutathione peroxidase; intestinal absorption; malates; methylcellulose; selenium; Ohio
Abstract:
... Objectives To assess selenium intakes, absorption, retention, and status in healthy adolescent girls and the effect of calcium supplementation on selenium parameters. Design Annual 2-week study conducted each year for 3 consecutive years in which yearly selenium intakes, absorption, and retention and blood selenium status were measured. Setting A metabolic unit in a large metropolitan hospital loc ...
DOI:
10.1016/S0002-8223(02)90244-0
PubMed:
12171452

38. Soil Erosion and Sediment Sources in an Ohio Watershed using Beryllium-7, Cesium-137, and Lead-210

Author:
Gerald Matisoff; Everett C. Bonniwell; Peter J. Whiting
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 54-61
ISSN:
1537-2537
Subject:
agricultural land; cesium radioisotopes; farming systems; lead; mixing; no-tillage; plowing; pollution load; sediment yield; sediments; soil; soil erosion; storms; suspended sediment; watersheds; Ohio
Abstract:
... Soil cores and suspended sediments were collected within the Old Woman Creek, Ohio (OWC) watershed following a thunderstorm and analyzed for ⁷Be, ¹³⁷Cs, and ²¹⁰Pb activities to compare the effects of till vs. no-till management on soil erosion and sediment yield. The upper reaches of the watershed draining tilled agricultural fields were disproportionately responsible for the majority of the suspe ...
DOI:
10.2134/jeq2002.5400

39. Soil quality field tools: experiences of USDA-NRCS soil quality institute

Author:
Ditzler, C.A.; Tugel, A.J.
Source:
Agronomy journal 2002 v.94 no.1 pp. 33-38
ISSN:
0002-1962
Subject:
soil fertility; field experimentation; measurement; farmers; technology transfer; soil physical properties; soil chemistry; soil biology; soil conservation; Maryland; Illinois; Montana; North Dakota; New Mexico; Ohio; Oregon
Abstract:
... The mission of the Soil Quality Institute (SQI) of the USDA Natural Resources Conservation Service is to develop and disseminate tools for soil quality assessment. In keeping with this mission, the SQI, through partnerships, has developed two assessment tools for use by farmers and field staff. We review these efforts here. The first, the Soil Quality Card Design Guide, provides a nine-step proces ...
Handle:
10113/11421

40. Spontaneous gastroduodenal perforation in 16 dogs and seven cats (1982-1999)

Author:
Hinton, L.E.; McLoughlin, M.A.; Johnson, S.E.; Weisbrode, S.E.
Source:
Journal of the American Animal Hospital Association 2002 v.38 no.2 pp. 176-187
ISSN:
0587-2871
Subject:
breed differences; adrenal cortex hormones; interspecific variation; blood chemistry; hematologic tests; cats; prognosis; dogs; nonsteroidal anti-inflammatory agents; peptic ulcers; Rottweiler
DOI:
10.5326/0380176
PubMed:
11908837

41. Suppression of plant-parasitic nematodes by application of live and dead infective juveniles of an entomopathogenic nematode, Steinernema carpocapsae, on boxwood (Buxus spp.)

Author:
Jagdale, G.B.; Somasekhar, N.; Grewal, P.S.; Klein, M.G.
Source:
Biological control 2002 v.24 no.1 pp. 42-49
ISSN:
1049-9644
Subject:
viability; nematode control; Buxus sempervirens; entomopathogenic nematodes; symbionts; plant parasitic nematodes; biological control agents; Buxus microphylla; mouthparts; population density; nematode larvae; Steinernema carpocapsae; heat treatment; ethoprophos; bacteria; Ohio
Abstract:
... Effects of live and dead (heat-killed) infective juveniles (IJs) of the entomopathogenic nematode Steinernema carpocapsae on nematodes associated with boxwood Buxus spp. were evaluated in field experiments during 1999 and 2000. Both living and dead IJs of S. carpocapsae were equally effective, causing more than 50% reduction in total populations of plant-parasitic nematodes relative to the control ...
Handle:
10113/12768

42. Survival of Clavibacter michiganensis ssp. michiganensis in infected tomato stems under natural field conditions in California, Ohio and Morocco

Author:
Fatmi, M.; Schaad, N.W.
Source:
Plant pathology 2002 v.51 no.2 pp. 149-154
ISSN:
0032-0862
Subject:
infection; Solanum lycopersicum var. lycopersicum; Clavibacter michiganensis subsp. michiganensis; stems; mortality; field experimentation; crop residues; duration; half life; prediction; geographical variation; environmental exposure; California; Ohio; Morocco
Abstract:
... The survival and half-life of Clavibacter michiganensis ssp. michiganensis (C. michiganensis), the causal agent of bacterial canker of tomato, were determined in infected plant debris under natural field conditions in California, Ohio and Morocco using a semiselective agar medium. The organism survived significantly longer in tomato stems left on the soil surface than in stems buried in the soil a ...
Handle:
10113/35630
DOI:
10.1046/j.1365-3059.2002.00675.x

43. Testing the floristic quality assessment index as an indicator of wetland condition

Author:
Ricardo D. Lopez; M. Siobhan Fennessy
Source:
Ecological applications 2002 v.12 no.2 pp. 487-497
ISSN:
1051-0761
Subject:
botanical composition; wetlands; Ohio
Abstract:
... Biological indicators of ecosystem integrity are increasingly being sought for use in ecosystem assessment and goal‐setting for restoration projects. We tested the effectiveness of a plant community‐based bioassessment tool, the floristic quality assessment index (FQAI) in 20 depressional wetlands in Ohio, USA. A priori, the 20 depressional wetlands were classified by type and ranked to form a dis ...
DOI:
10.1890/1051-0761(2002)012[0487:TTFQAI]2.0.CO;2

44. TopCross High-Oil Corn Production

Author:
Peter R. Thomison; Allen B. Geyer; Larry D. Lotz; Howard J. Siegrist; Tammy L. Dobbels
Source:
Agronomy journal 2002 v.94 no.2 pp. 290-299
ISSN:
0002-1962
Subject:
Zea mays; agronomic traits; corn; drought; field experimentation; grain yield; hybrids; lodging; males; oils; parents; pollen; pollinators; production costs; profitability; seed set; water content; Ohio
Abstract:
... The TopCross grain production system is rapidly gaining popularity as the preferred method of producing high-oil corn (Zea mays L.). A blend (TC Blend) of two types of corn is planted to produce TopCross high-oil corn (HOC) grain. Limited information is available on the effects of the TopCross system on agronomic traits that may determine the profitability of HOC production. Field experiments and ...
DOI:
10.2134/agronj2002.2900

45. The influence of earthworm community structure on the distribution and movement of solutes in a chisel-tilled soil

Author:
Shuster, W.D.; Subler, S.; McCoy, E.L.
Source:
Applied soil ecology 2002 v.21 no.2 pp. 159-167
ISSN:
0929-1393
Subject:
soil organic carbon; Lumbricus terrestris; soil water content; nitrogen; chiseling; silt loam soils; solutes; strontium; biological activity in soil; bromides; earthworms; community ecology; Lumbricus rubellus; earthworm burrows; Ohio

46. An investigation of the cryptobiotic community from sandstone cliffs in southeast Ohio

Author:
Casamatta, D.A.; Verb, R.G.; Beaver, J.R.; Vis, M.L.
Source:
International journal of plant sciences 2002 v.163 no.5 pp. 837-845
ISSN:
1058-5893
Subject:
Bacillariophyta; relative humidity; algae; light intensity; Protozoa; microhabitats; flora; species diversity; photosynthesis; Cyanobacteria; vegetation; Ohio
DOI:
10.1086/341514

47. Carbon dioxide evolution in runoff from simulated rainfall on long-term no-till and plowed soils in southwestern Ohio

Author:
Jacinthe, P.A.; Lal, R.; Kimble, J.M.
Source:
Soil & tillage research 2002 v.66 no.1 pp. 23-33
ISSN:
0167-1987
Subject:
sediment yield; agricultural soils; soil organic carbon; no-tillage; sediments; carbon dioxide; long term experiments; plowing; soil microorganisms; runoff; mineralization; ammonium compounds; biological activity in soil; emissions; nutrient availability; chiseling; rain; water erosion; Ohio
Abstract:
... Water erosion results in the mobilization and depletion of soil organic carbon (SOC), but studies providing direct experimental evidence of eroded C mineralization and its linkage to the global C cycle are lacking. A study was conducted to determine the mineralization of SOC in runoff from a southwestern Ohio Crosby soil (fine, mixed, mesic Aeric Ochraqualf) that had been under no-till (NT), chise ...
Handle:
10113/15663

48. Climatic and Agricultural Factors in Nutrient Exports from Two Watersheds in Ohio

Author:
Douglas B. Moog; Peter J. Whiting
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 72-83
ISSN:
1537-2537
Subject:
agricultural watersheds; conservation tillage; fertilizer application; hydrology; lakes; leaching; monitoring; nitrates; nitrogen fertilizers; nutrients; oceans; pollution load; reactive phosphorus; regression analysis; sediments; snowpack; soil; streams; summer; total phosphorus; total suspended solids; Lake Erie; Ohio
Abstract:
... Export of agricultural nutrients and sediment to lakes and oceans is of great environmental concern in many agricultural watersheds. Recent years have seen efforts to reduce loads through agricultural practices such as conservation tillage, efficient fertilization, and reservation of erodible areas. Monitoring the efficacy of such efforts is complicated by the fact they take place against a varyin ...
DOI:
10.2134/jeq2002.7200

49. Coyote hair as an area repellent for white-tailed deer

Author:
Seamans, T.W.; Blackwell, B.F.; Cepek, J.D.
Source:
International journal of pest management 2002 v.48 no.4 pp. 301-306
ISSN:
0967-0874
Subject:
Odocoileus virginianus; predators; Canis latrans; repellents; feed intake; habitats; vertebrate pests; pest control; Ohio
DOI:
10.1080/09670870210149853

50. Culture-based and non-growth-dependent detection of the Burkholderia cepacia complex in soil environments

Author:
Miller, S.C.M.; LiPuma, J.J.; Parke, J.L.
Source:
Applied and environmental microbiology 2002 v.68 no.8 pp. 3750-3758
ISSN:
0099-2240
Subject:
Pseudomonadaceae; urban areas; urban soils; suburban areas; polymerase chain reaction; ribosomal DNA; genes; restriction fragment length polymorphism; cell culture; Pennsylvania; Ohio; Oregon
Abstract:
... Burkholderia cepacia complex (Bcc) bacteria reside in soil, plant rhizospheres, and water, but their prevalence and distribution in outdoor environments is not clear. We sampled a variety of soil and rhizosphere environments with which people may have contact: playgrounds, athletic fields, parks, hiking trails, residential yards, and gardens. A total of 91 sites was sampled in three large U.S. cit ...
DOI:
10.1128/AEM.68.8.3750-3758.2002
PubMed:
12147469
PubMed Central:
PMC124052

51. Delayed Planting Effects on Flowering and Grain Maturation of Dent Corn

Author:
Robert L. Nielsen; Peter R. Thomison; Gregory A. Brown; Anthony L. Halter; Jason Wells; Kirby L. Wuethrich
Source:
Agronomy journal 2002 v.94 no.3 pp. 549-558
ISSN:
0002-1962
Subject:
Zea mays; agronomy; cold; dent corn; early development; heat sums; hybrids; phenology; planting date; risk; seeds; silk; Corn Belt region; Eastern United States; Indiana; Ohio
Abstract:
... Delayed planting shortens the effective growing season for corn (Zea mays L.), increasing the risk of exposure to lethal cold temperatures late in the season before grain maturation. Consequently, growers often must decide whether to switch to early maturity hybrids to minimize this risk. The objective of this study was to determine whether delayed planting influenced the growing degree day (GDD) ...
DOI:
10.2134/agronj2002.5490

52. Effect of cropland management and slope position on soil organic carbon pool at the North Appalachian Experimental Watersheds

Author:
Hao, Y.; Lal, R.; Owens, L.B.; Izaurralde, R.C.; Post, W.M.; Hothem, D.L.
Source:
Soil & tillage research 2002 v.68 no.2 pp. 133-142
ISSN:
0167-1987
Subject:
Zea mays; Glycine max; long term experiments; no-tillage; plowing; soil organic matter; chiseling; soybeans; corn; cattle manure; wheat; bulk density; carbon; Triticum aestivum; NPK fertilizers; continuous cropping; crop rotation; application rate; Ohio
Abstract:
... Soil organic matter is strongly related to soil type, landscape morphology, and soil and crop management practices. Therefore, long-term (15-36-years) effects of six cropland management systems on soil organic carbon (SOC) pool in 0-30 cm depth were studied for the period of 1939-1999 at the North Appalachian Experimental Watersheds (<3 ha, Dystric Cambisol, Haplic Luvisol, and Haplic Alisol) near ...
Handle:
10113/15668

53. Effects of mulching and fertilization on soil nutrients, microbial activity and rhizosphere bacterial community structure determined by analysis of TRFLPs of PCR-amplified 16S rRNA genes

Author:
Tiquia, S.M.; Lloyd, J.; Herms, D.A.; Hoitink, H.A.J.; Michel, F.C. Jr.
Source:
Applied soil ecology 2002 v.21 no.1 pp. 31-48
ISSN:
0929-1393
Subject:
ribosomal RNA; sawdust; genes; waste wood; NPK fertilizers; application rate; rhizosphere; soil fertility; soil pH; restriction fragment length polymorphism; soil bacteria; cation exchange capacity; Cucumis sativus; composts; soil organic matter; cucumbers; polymerase chain reaction; biological activity in soil; Pseudomonas; mulching; mulches; Ohio

54. Effects of wheat residue fertilization on accumulation and biochemical attributes of organic carbon in a central ohio luvisol

Author:
P. A. Jacinthe; R. Lal; J. M. Kimble
Source:
Soil science 2002 v.167 no.11 pp. 750-758
ISSN:
0038-075X
Subject:
Luvisols; Triticum aestivum; carbon sequestration; community structure; fertilizers; microbial biomass; mulches; soil microorganisms; soil organic carbon; temporal variation; wheat; wheat straw; Ohio
Abstract:
... The potential of crop residue fertilization as a carbon sequestration technology was evaluated in a central Ohio Luvisol (fine, mixed, mesic Aeric Ochraqualf). Wheat (Triticum aestivum L.) straw was applied at three rates (bare: 0; low: 8 Mg; and high: 16 Mg ha yr) without (−F) and with (+F) addition of 244 kg N ha yr. The treatments were triplicated in a completely randomized block design. We rep ...
DOI:
10.1097/00010694-200211000-00005

55. Fifty Years of Anticoccidial Vaccines for Poultry (1952–2002)

Author:
Williams, R.B.
Source:
Avian diseases 2002 v.46 no.4 pp. 775-802
ISSN:
0005-2086
Subject:
Eimeria tenella; animal health; bird diseases; chickens; coccidiosis; coccidiostats; live vaccines; oocysts; ownership; parasitism; trademarks; turkeys; Alabama; Czech Republic; Netherlands; Ohio; United Kingdom
Abstract:
... Although earlier investigators experimented with anticoccidial vaccines, the world's first commercially successful product was developed by Prof. S. A. Edgar of Auburn University, Auburn, AL. This product contained live, nonattenuated Eimeria tenella oocysts and was first marketed by Dorn and Mitchell, Inc., in 1952. Under the trade names of DM® Cecal Coccidiosis Vaccine, Coxine®, NObiCOX®, and Co ...
DOI:
10.1637/0005-2086(2002)046[0775:FYOAVF]2.0.CO;2

56. Genetic variability in stress tolerance and fitness among natural populations of Steinernema carpocapsae

Author:
Somasekhar, N.; Grewal, P.S.; Klein, M.G.
Source:
Biological control 2002 v.23 no.3 pp. 303-310
ISSN:
1049-9644
Subject:
Steinernema carpocapsae; heat tolerance; hypoxia; mortality; virulence; Galleria mellonella; reproduction; genetic variation; entomopathogenic nematodes; biological control agents; population; North Carolina; Ohio
Abstract:
... Genetic variability in stress tolerance (heat, desiccation, and hypoxia) and fitness (virulence and reproduction potential) among natural populations of Steinernema carpocapsae was assessed by estimating phenotypic differences. Significant differences were observed in stress tolerance among populations. Populations isolated from North Carolina showed significantly more stress tolerance than those ...
Handle:
10113/12808

57. Lack of competitive success of an intraseeded creeping bentgrass cultivar into an established putting green

Author:
Kendrick, D.L.; Danneberger, T.K.
Source:
Crop science 2002 v.42 no.5 pp. 1615-1620
ISSN:
0011-183X
Subject:
cultivars; random amplified polymorphic DNA technique; application timing; sowing; plant growth substances; cutting; glyphosate; plant competition; detection; roots; golf courses; Ohio
Abstract:
... Intraseeding is a popular approach for converting established golf course putting greens to a more desirable cultivar of the same species without killing the existing turf. This study was conducted to determine the competitive success of an intraseeded creeping bentgrass (Agrostis palustris Huds.) cultivar in an established putting green using random amplified polymorphic DNA (RAPD) markers. Two r ...

58. Nitrogen source and earthworm abundance affected runoff volume and nutrient loss in a tilled-corn agroecosystem

Author:
Shuster, W.D.; McDonald, L.P.; McCartney, D.A.; Parmelee, R.W.; Studer, N.S.; Stinner, B.R.
Source:
Biology and fertility of soils 2002 v.35 no.5 pp. 320-327
ISSN:
0178-2762
Subject:
sediment yield; alfalfa; carbon; discing; fields; losses from soil; population density; continuous cropping; runoff; ammonium nitrate; Zea mays; soil water content; corn; earthworms; alfalfa hay; macropores; soil conservation; Aporrectodea caliginosa; Lumbricus terrestris; cattle manure; Lumbricus rubellus; Ohio
Abstract:
... A simulated rainfall event was used to determine the influence of different N sources and earthworm density on surface hydrology and quality of runoff in a tilled-corn cropping system. N was added to spring-disked, continuous-corn plots as chopped legume, manure, or NH4NO3. Earthworm populations were manipulated in fertility treatments by reductions, additions, or left as ambient populations. We f ...
DOI:
10.1007/s00374-002-0474-4

59. Overwinter soil denitrification activity and mineral nitrogen pools as affected by management practices

Author:
Jacinthe, P.A.; Dick, W.A.; Owens, L.B.
Source:
Biology and fertility of soils 2002 v.36 no.1 pp. 1-9
ISSN:
0178-2762
Subject:
wheat; dissolved organic carbon; ammonium nitrogen; discing; plowing; nitrate nitrogen; Triticum aestivum; soil fertility; continuous cropping; Zea mays; Glycine max; Vicia faba; winter; autumn; soil organic matter; denitrifying microorganisms; corn; denitrification; crop rotation; chiseling; soybeans; ridging; cattle manure; freeze-thaw cycles; Ohio
Abstract:
... During freeze-thaw events, biophysical changes occurring in soils can affect processes such as mineralization, nitrification and denitrification which control inorganic N balances in agro-ecosystems. To evaluate the impact of these climatic events on soil biochemical properties, a study was conducted comparing soil denitrification enzyme activity (DEA), dissolved organic C (DOC) and inorganic N le ...
DOI:
10.1007/s00374-002-0499-8

60. Prevalence of fecal shedding of Salmonella spp in dairy herds

Author:
Huston, C.L.; Wittum, T.E.; Love, B.C.; Keen, J.E.
Source:
Journal of the American Veterinary Medical Association 2002 v.220 no.5 pp. 645-649
ISSN:
0003-1488
Subject:
dairy cows; dairy herds; animal husbandry; Salmonella; disease prevalence; cattle manure; risk factors; Ohio
DOI:
10.2460/javma.2002.220.645
PubMed:
12418525

61. Radionuclides as Indicators of Sediment Transport in Agricultural Watersheds that Drain to Lake Erie

Author:
Gerald Matisoff; Everett C. Bonniwell; Peter J. Whiting
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 62-72
ISSN:
1537-2537
Subject:
agricultural management; agricultural soils; agricultural watersheds; cesium radioisotopes; conventional tillage; erosion control; hydrograph; kinematics; lead; no-tillage; runoff; sediment transport; sediments; storms; stream channels; suspended sediment; Lake Erie; Ohio
Abstract:
... An issue in evaluating the success of agricultural management practices is the speed that eroded particles make their way through the downstream waters. In this study at Old Woman Creek (OWC) and Rock Creek (RC), two largely agricultural watersheds in Ohio, the flux of sediment and radionuclides (⁷Be, ²¹⁰Pb, and ¹³⁷Cs) in thunderstorm runoff was examined to better understand transport of eroded ag ...
DOI:
10.2134/jeq2002.6200

62. Registration of maize germplasm Oh1VI

Author:
Louie, R.; Jones, M.W.; Anderson, R.J.; Redinbaugh, M.G.
Source:
Crop science 2002 v.42 no.3 pp. 991
ISSN:
0011-183X
Subject:
Zea mays; plant viruses; disease resistance; genetic resistance; germplasm; agronomic traits; crop yield; Ohio

63. Runoff and soil loss from midwestern and souteastern US silt loam soils as affected by tillage practice and soil organic matter content

Author:
Rhoton, F.E.; Shipitalo, M.J.; Lindbo, D.L.
Source:
Soil & tillage research 2002 v.66 no.1 pp. 1-11
ISSN:
0167-1987
Subject:
sediment yield; Zea mays; long term experiments; no-tillage; soil organic matter; Gossypium hirsutum; bulk density; clay; losses from soil; silt loam soils; runoff; water erosion; particle size distribution; soil aggregates; Ohio; Mississippi
Abstract:
... No-till practices generally reduce runoff (RO) and soil loss (SL) by contributing to accumulations of soil organic matter (SOM) in the near-surface zone. This research was conducted to determine the effects of SOM contents on RO and SL from two highly erodible soils using crops that produce a wide range of residue, in the context of long-term tillage studies in widely separated climatic regions. R ...
Handle:
10113/10786
DOI:
10.1016/S0167-1987(02)00005-3

64. Sediment carbon concentration and transport from small watersheds under various conservation tillage practices

Author:
Owens, L.B.; Malone, R.W.; Hothem, D.L.; Starr, G.C.; Lal, R.
Source:
Soil & tillage research 2002 v.67 no.1 pp. 65-73
ISSN:
0167-1987
Subject:
sediment yield; water erosion; discing; Zea mays; Glycine max; no-tillage; plowing; chiseling; Secale cereale; watersheds; plows; Trifolium pratense; Triticum aestivum; losses from soil; crop rotation; Ohio
Abstract:
... Carbon sequestration by soils is viewed as a process that can reduce CO2 emission and its potential impacts on global climate change. Therefore, impacts of various agricultural management practices on carbon (C) release/sequestration need to be assessed. The objective of this study was to measure C concentrations and transport in sediments lost with various tillage practices on small watersheds. C ...
Handle:
10113/13778
DOI:
10.1016/S0167-1987(02)00031-4

65. Soil carbon and nitrogen dynamics in Lumbricus terrestris L. middens in four arable, a pasture, and a forest ecosystems

Author:
Wilcox, C.S.; Dominguez, J.; Parmelee, R.W.; McCartney, D.A.
Source:
Biology and fertility of soils 2002 v.36 no.1 pp. 26-34
ISSN:
0178-2762
Subject:
Lumbricus terrestris; soil organic matter; carbohydrates; nitrate nitrogen; worm casts; soil microorganisms; carbon; soil fertility; carbon nitrogen ratio; earthworms; forest soils; arable soils; biomass; ammonium nitrogen; grassland soils; Ohio
Abstract:
... Lumbricus terrestris' middens contain large concentrations of organic material and have been characterized as microenvironments distinct from the surrounding soil. The direct and indirect consequences of midden formation on nutrient cycling dynamics and organic matter pools in various ecosystem types have not received much consideration. Therefore, we focused on the differences in C and N dynamics ...
DOI:
10.1007/s00374-002-0497-x

66. Trends in Water Quality in LEASEQ Rivers and Streams (Northwestern Ohio), 1975–1995

Author:
R. Peter Richards; David B. Baker
Source:
Journal of environmental quality 2002 v.31 no.1 pp. 90-96
ISSN:
1537-2537
Subject:
agricultural watersheds; application rate; data collection; fertilizer application; fertilizers; land use; manure spreading; nitrates; reactive phosphorus; rivers; streams; total Kjeldahl nitrogen; total suspended solids; water quality; Ohio
Abstract:
... Trends in water quality in four northwest Ohio rivers over the period 1975–1995 were identified using datasets of daily concentrations containing 4500 to 6800 observations per river during the study period. Concentrations were log-transformed prior to analysis, and adjusted for flow using a locally weighted scatterplot smoother (LOWESS) fit between log(concentration) and log(flow). Seasonality was ...
DOI:
10.2134/jeq2002.9000

67. Understory succession and the gap regeneration cycle in a Tsuga canadensis forest

Author:
Rankin, W.T.; Tramer, E.J.
Source:
Canadian journal of forest research = 2002 v.32 no.1 pp. 16-23
ISSN:
0045-5067
Subject:
Tsuga canadensis; forests; canopy gaps; natural regeneration; understory; ecological succession; growth rings; chronosequences; shoots; dry matter partitioning; Ohio
Abstract:
... We examined understory succession in current and former canopy gaps in mature Tsuga canadensis (L.) Carriere forests in southeastern Ohio. First, we reconstructed understory succession in current gaps by sampling 28 gaps ranging from 0 to 9 years. Second, we reconstructed the gap history of a single Tsuga community by clustering release events evident in the growth rings of 156 trees. The two reco ...
DOI:
10.1139/x01-168

68. Vegetation boundary detection: a comparison of two approaches applied to field data

Author:
Choesin, D.; Boerner, R.E.J.
Source:
Plant ecology 2002 v.158 no.1 pp. 85-96
ISSN:
1385-0237
Subject:
plant communities; landscapes; spatial distribution; botanical composition; edge effects; field experimentation; detection; vegetation; Ohio
Abstract:
... We examined and compared two approaches to vegetation boundary determination by applying them to field data collected from Betsch Fen, an alkaline wetland in Ohio, USA. Two boundary detection methods were used to test hypothesized boundary locations determined through field observations: gradient analysis by detrended correspondence analysis (DCA) and the moving split-window (MSW) technique. These ...

69. Why do rural primary care physicians sell their practices?

Author:
Stensland, J.; Brasure, M.; Moscovice, I.
Source:
Journal of rural health 2002 v.18 no.1 pp. 93-108
ISSN:
0890-765X
Subject:
rural areas; health services; general practitioners; California; Utah; Ohio; Texas; Virginia
Abstract:
... This study evaluates why rural primary care physicians sell their practices. A random sample of rural primary care practices in California, Utah, Ohio, Texas, and Virginia were surveyed to investigate changes in ownership of the practices during the period 1995-1998. These five states were selected because they represent areas with different experiences with physician-hospital integration and vari ...
DOI:
10.1111/j.1748-0361.2002.tb00881.x
PubMed:
12043761

70. A dynamic exercise in reducing deer-vehicle collisions: Management through vehicle mitigation techniques and hunting

Author:
Schwabe, Kurt A.; Schuhmann, Peter W.; Tonkovich, M.
Source:
Journal of agricultural and resource economics 2002 v.27 no.1 pp. 261-280
ISSN:
1068-5502
Subject:
deer; economics; wildlife management; Ohio
Abstract:
... The costs of deer-vehicle collisions (DVCs) nationwide are estimated to be in excess of $1 billion annually. In this study, factors contributing to the abundance of DVCs are identified and the potential effectiveness of various deer management strategies in reducing DVCs is investigated. The added benefits of such strategies are also evaluated in a bioeconomic context by comparing alternative outc ...