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1. Effective use of USDA-ARS experimental watersheds

Author:
Goodrich, D.C.; Starks, P.J.; Schnabel, R.R.; Bosch, D.D.
Source:
Proceedings of the ARS Conference on Hydrology : Denver, Colorado, September 13-15, 1993 pp. -
Subject:
history; Agricultural Research Service; watershed management; watersheds; methodology; governmental programs and projects; research; runoff; technology; United States
Handle:
10113/20791

2. Hydrologic Instrumentation at the USDA-ARS Grassland, Soil and Water Research Laboratory, Riesel, TX

Author:
Harmel, R. Daren; Richardson, Clarence W.; King, Kevin W.; Arnold, Jeff G.
Source:
First Interagency Conference on Research in the Watersheds pp. -
Subject:
hydrologic data; measuring devices; Agricultural Research Service; pastures; data analysis; watershed hydrology; agricultural watersheds; Texas
Abstract:
... The USDA-ARS Grassland, Soil and WaterResearch Laboratory watershed facility near Riesel, TX, is one of the most intensively monitored hydrological research sites in the country. The 340 ha research site is currently divided into subwatersheds ranging from 0.1 to 125 ha under pasture and cropland management. Currently in operation are 18 runoff stations, 15 rain gauges, a weather station, a latera ...
Handle:
10113/45546

3. Information Technology Applications in the ARS Watershed Network

Author:
Steiner, J.L.; Goodrich, D.C.; Hardegree, S.; Burkhart, M.R.; Strickland, T.C.; Weltz, M.A.
Source:
First Interagency Conference on Research in the Watersheds : October 27-30, 2003 pp. -
Subject:
history; Agricultural Research Service; information management; governmental programs and projects; watershed hydrology; research; United States
Abstract:
... Knowledge gaps relating to water supply, quality, and cycling processes have been identified as critical obstacles to improved water resource management in recent assessments. One critical gap identified was lack of adequate data to evaluate climate and hydrologic processes, particularly variability associated with climate and hydrology that affects management responses. The USDA, Agricultural Res ...
Handle:
10113/46417

4. New USDA-ARS Research in Biotechnology Risk Assessment

Author:
Walker-Simmons, M. Kay
Source:
Biotechnology : science and society at a crossroad / edited by Allan Eaglesham, Sandra Ristow, and Ralph W.F. Hardy pp. -
Subject:
research and development; genetic resources; nontarget organisms; Agricultural Research Service; biotechnology; gene flow; risk assessment; pest resistance; issues and policy; databases; United States
Handle:
10113/40905

5. The USDA-Agricultural Research Service Watershed Research Program

Author:
Weltz, Mark A.; Bucks, Dale A.
Source:
First Interagency Conference on Research in the Watersheds : October 27-30, 2003 pp. -
Subject:
hydrologic data; agricultural research; Agricultural Research Service; watershed hydrology; agricultural watersheds; United States
Handle:
10113/44535

6. An estimation of the annual cost to maintain a citrus germplasm repository

Author:
Krueger, Robert R.
Source:
Identification and conservation of genetic resources of citrus and its relatives : proceedings of a symposium held during the VIII Congress of the International Society of Citriculture, Sun City, South Africa 13 May, 1996 / edited by L. Gene Albrigo pp. -
Subject:
cost analysis; germplasm conservation; Citrus; greenhouses; labor economics; Agricultural Research Service; United States
Handle:
10113/23510

7. An overview of the USDA-ARS climate change and hydrology program and analysis of model complexity as a function of basin scale

Author:
Goodrich, David C.
Source:
Proceedings of the Workshop on the Effects of Global Climate Change on Hydrology and Water Resources at the Catchment Scale, February 3-6, 1992, Tsukuba, Japan / Japan-U.S. Committee on Hydrology, Water Resources, and Global Climate Change (JUCHWR) pp. -
Subject:
Agricultural Research Service; climate change; watershed hydrology; governmental programs and projects; hydrologic models; runoff; infiltration (hydrology); arid lands; Arizona
Handle:
10113/47532

8. History, policy, and significance of the ARS Culture Collection

Author:
Hesseltine, C.W.; Haynes, W.C.; Wickerham, L.J.; Ellis, J.J.
Source:
Int Conf Cult Collect Tokyo 1968 Cult Collect Microorg 1970 v.1st pp. 21-38
Subject:
history; in vitro culture; Agricultural Research Service; microorganisms; issues and policy
Handle:
10113/30891

9. Patent deposition of microorganisms: Agricultural Research Service

Author:
Nakamura, L.K.
Source:
Developments in industrial microbiology 1978 v.19 pp. 161-167
ISSN:
0070-4563
Subject:
Agricultural Research Service; patents; microorganisms; guidelines; type collections; United States
Handle:
10113/28399

10. New native crops for the arid Southwest

Author:
Thompson, A.E.
Source:
Economic botany 1985 v.39 no.4 pp. 436-453
ISSN:
0013-0001
Subject:
research and development; foods; buffaloes; food plants; arid lands; resins; new crops; medium chain fatty acids; gourds; industry; hydroxy fatty acids; Lesquerella; Cuphea; ornamental plants; Grindelia; research programs; agricultural experiment stations; irrigated farming; domestication; chemical composition; irrigation water; Agricultural Research Service; indigenous species; jojoba; indigenous peoples; Sonoran Desert; Southwestern United States
Abstract:
... Agricultural production in the arid Southwest is heavily dependent upon water for irrigation. If current trends of water use continue, the amount of water available to agriculture in the year 2000 will only meet approximately 50% of the needs of currently available irrigated crop land. Development of new crops with low irrigation needs is of highest priority. None of the major crop plants of the w ...
Handle:
10113/54699
DOI:
10.1007/BF02858752

11. Registration of 'Bigbee' berseem clover

Author:
Knight, W.E.
Source:
Crop science 1985 v.25 no.3 pp. 571-572
ISSN:
0011-183X
Subject:
cultivars; Agricultural Research Service; Trifolium alexandrinum; United States
DOI:
10.2135/cropsci1985.0011183X002500030038x

12. Registration of 'Dawson' soybean

Author:
Orf, J.H.; Lambert, J.W.; Kennedy, B.W.
Source:
Crop science 1985 v.25 no.3 pp. 572
ISSN:
0011-183X
Subject:
Agricultural Research Service; cultivars; Glycine max
DOI:
10.2135/cropsci1985.0011183X002500030039x

13. Registration of 'NC 85' tobacco

Author:
Gwynn, G.R.
Source:
Crop science 1985 v.25 no.3 pp. 573
ISSN:
0011-183X
Subject:
cultivars; Agricultural Research Service; Nicotiana tabacum; United States
DOI:
10.2135/cropsci1985.0011183X002500030041x

14. Registration of CP 76-331 sugarcane

Author:
Garrison, D.D.; Breaux, R.D.; Fanguy, H.P.
Source:
Crop science 1985 v.25 no.3 pp. 572-573
ISSN:
0011-183X
Subject:
hybrids; Saccharum officinarum; Saccharum barberi; Agricultural Research Service; Saccharum spontaneum; United States
DOI:
10.2135/cropsci1985.0011183X002500030040x

15. Registration of Centura wheat

Author:
Schmidt, J.W.; Johnson, V.A.; Mattern, P.J.; Dreier, A.F.; McVey, D.V.; Hatchett, J.H.
Source:
Crop science 1985 v.25 no.3 pp. 574
ISSN:
0011-183X
Subject:
cultivars; Agricultural Research Service; Triticum aestivum; United States
DOI:
10.2135/cropsci1985.0011183X002500030043x

16. Registration of Colt wheat

Author:
Schmidt, J.W.; Johnson, V.A.; Mattern, P.J.; Dreier, A.F.; McVey, D.V.; Hatchett, J.H.
Source:
Crop science 1985 v.25 no.3 pp. 574-575
ISSN:
0011-183X
Subject:
Agricultural Research Service; cultivars; Triticum aestivum
DOI:
10.2135/cropsci1985.0011183X002500030044x

17. Registration of Glenman wheat

Author:
McNeal, F.H.; Alexander, W.L.; McGuire, C.F.; Bergman, J.W.; Carlson, G.R.; Dubbs, A.L.; Kushnak, G.D.; Stallknect, G.F.; Stewart, V.R.; Sharp, E.L.
Source:
Crop science 1985 v.25 no.3 pp. 575
ISSN:
1435-0653
Subject:
Agricultural Research Service; cultivars; Triticum aestivum
DOI:
10.2135/cropsci1985.0011183X002500030045x

18. Registration of Karla barley

Author:
Wesenberg, D.M.; Robbins, G.S.; Burger, W.C.
Source:
Crop science 1985 v.25 no.3 pp. 570
ISSN:
0011-183X
Subject:
cultivars; Hordeum vulgare; Agricultural Research Service; United States
DOI:
10.2135/cropsci1985.0011183X002500030035x

19. Registration of Nodak pinto bean

Author:
Grafton, K.F.; Schneiter, A.A.; Burke, D.W.; Weiser, G.C.
Source:
Crop science 1985 v.25 no.3 pp. 571
ISSN:
0011-183X
Subject:
Phaseolus vulgaris; cultivars; Agricultural Research Service
DOI:
10.2135/cropsci1985.0011183X002500030037x

20. Registration of storage rot resistant sugarbeet germplasms F1004, F1005, and F1006

Author:
Campbell, L.G.; Bugbee, W.M.
Source:
Crop science 1985 v.25 no.3 pp. 577
ISSN:
0011-183X
Subject:
germplasm; Agricultural Research Service; Beta vulgaris
DOI:
10.2135/cropsci1985.0011183X002500030048x

21. Trailer mounted flowing furrow infiltrometer

Author:
Dedrick, Allen R.; Hardy, Leland A.; Clemmens, Albert J.; Replogle, John A.; Tomchak Clemmens, Lynn M.
Source:
Applied engineering in agriculture 1985 v.1 no.2 pp. 79-83
ISSN:
0883-8542
Subject:
Agricultural Research Service; furrow irrigation; infiltration (hydrology); infiltrometers; irrigation management; soil conservation; trailers; water flow; Arizona
Abstract:
... Infiltration processes must be understood to optimally design, evaluate or manage furrow irrigation systems. The utility of evaluating furrow infiltration using flowing water rather than static water has been demonstrated previously. A self contained, trailer-mounted, flowing furrow infiltrometer was developed by the Soil Conservation Service cooperatively with the Agricultural Research Service in ...
Handle:
10113/54898
DOI:
10.13031/2013.26769

22. Methods for Controlling pH in Hydroponic Culture of Winter Wheat Forage

Author:
S. C. Miyasaka; R. T. Checkai; D. L. Grunes; W. A. Norvell
Source:
Agronomy journal 1988 v.80 no.2 pp. 213-220
ISSN:
0002-1962
Subject:
Agricultural Research Service; Triticum; agronomy; amberlite; cation exchange resins; forage; hydroponics; nutrient solutions; pH; soil; titration; winter wheat
Abstract:
... Plants grown in hydroponic culture make useful experimental models for soil-grown plants. However, a major problem of nutrient solution culture is the adequate buffering of solution pH. Four methods of controlling pH in hydroponic culture of winter wheat (Triticum uestivum L. ‘Centurk’) were compared at two levels of Ca (0.2 and 2.0 mM) to determine the buffering method with the least effect on th ...
DOI:
10.2134/agronj1988.00021962008000020015x

23. Planting Date in Relation to Yield and Yield Components of Wheat in the Middle Atlantic Region

Author:
T. R. Rocheford; D. J. Sammons; P. S. Baenziger
Source:
Agronomy journal 1988 v.80 no.1 pp. 30-34
ISSN:
0002-1962
Subject:
Agricultural Research Service; Triticum aestivum; agronomy; coastal plains; cultivars; environmental factors; grain yield; piedmont; planting date; seeds; soft red winter wheat; winter wheat; Maryland; Mid-Atlantic region
Abstract:
... A 2-yr study was conducted to assess the effects of early and late planting on six soft red winter wheat (Triticum aestivum L.) cultivars. The purpose was to determine if increased flexibility in planting date is possible for modern wheat cultivars grown in the Middle Atlantic states. Wheat was planted 2 wk prior to, on, and 2 wk after the recommended fly-free planting date at Clarksville (Piedmon ...
DOI:
10.2134/agronj1988.00021962008000010007x

24. Relationship between Plant Height and Flowering Date in Determinate Soybean

Author:
Sun Maw Lin; Randall Nelson
Source:
Crop science 1988 v.28 no.1 pp. 27-30
ISSN:
0011-183X
Subject:
Agricultural Research Service; Argiudolls; Glycine max; cultivars; flowering date; heritability; lodging resistance; phenotypic correlation; plant height; silt loam soils; soybeans; stem elongation; Illinois
Abstract:
... There is increasing interest in growing determinate soybean [Glycine max (L.) Merr.] in the northern USA because of their yielding ability and lodging resistance. These cultivars are approximately half as tall as indeterminate cultivars. The objectives of this study were to estimate the heritabilities of days to R1 and R8, and plant heights at R1 and R8; and to evaluate the relationships among the ...
DOI:
10.2135/cropsci1988.0011183X002800010006x

25. A Simple Pump for Extracting Water Rhizotrons from Neutron Access Tubes and Mini-Rhizotrons

Author:
Peter J. Shouse
Source:
Agronomy journal 1988 v.80 no.2 pp. 269-270
ISSN:
0002-1962
Subject:
Agricultural Research Service; agronomy; neutron probes; neutrons; salinity; Texas
Abstract:
... Water in neutron-probe access tubes and mini-rhizotrons impedes the acquisition of accurate data under wet field conditions. When such situations arise, water must be extracted before data can be taken. The objective was to design, construct, and use a pump that would be easy to operate, portable, and inexpensive. The pump was found to be a useful tool for extracting undesired water from access tu ...
DOI:
10.2134/agronj1988.00021962008000020023x

26. Surface Soil Nutrient Distribution as Affected by Wheat‐Fallow Tillage Systems

Author:
R. F. Follett; G. A. Peterson
Source:
Soil Science Society of America journal 1988 v.52 no.1 pp. 141-147
ISSN:
0361-5995
Subject:
Agricultural Research Service; Agropyron desertorum; cadmium; copper; fallow; fertilizer application; grasslands; indigenous species; inorganic phosphorus; iron; lead; long term effects; manganese; mulches; nickel; nitrogen fertilizers; no-tillage; nutrient availability; nutrients; plowing; plows; prairie soils; soil fertility; soil nutrients; soil organic matter; soil pH; soil test values; stubble; topsoil; zinc; Colorado; Great Plains region; Nebraska
Abstract:
... Research was conducted to determine long‐term effects of tillage on soil fertility. Our objective was to determine whether crop residue placement caused by differences in tillage would result in changes in levels of plant available nutrients and other metals in the soil. Two native grassland sites in Western Nebraska were managed under three tillage systems; no‐till, stubble‐mulch, and moldboard p ...
DOI:
10.2136/sssaj1988.03615995005200010025x

27. Kinetics of In Vitro Cell-Wall Disappearance and In Vivo Digestion

Author:
D. S. Fisher; J. C. Burns; K. R. Pond
Source:
Agronomy journal 1989 v.81 no.1 pp. 25-33
ISSN:
0002-1962
Subject:
Agricultural Research Service; Bromus inermis; agronomy; cell walls; diet; digestion; particle size; plant anatomy; ruminants; surface area; North Carolina
Abstract:
... Understanding the dynamics or kinetics of digestion and passage may suggest ways to manipulate forages to improve the diet, and consequently the production, of domesticated ruminants. The methodology of fitting exponential curves was tested using simulated cell-wall-disappearance curves with both an exponential and a gamma-distributed exponential driving function and normal-random variation superi ...
DOI:
10.2134/agronj1989.00021962008100010005x

28. Resistance-Susceptibility of Maize Genotypes to Artificial Infestations by Twospotted Spider Mites

Author:
K. Kamali; F. F. Dicke; W. D. Guthrie
Source:
Crop science 1989 v.29 no.4 pp. 936-938
ISSN:
0011-183X
Subject:
Agricultural Research Service; Ostrinia nubilalis; Tetranychus urticae; Zea mays; antibiosis; corn; field experimentation; genotype; inbred lines; leaves; mites; pests; plant damage; Iowa
Abstract:
... Twospotted spider mites, Tetranychus urticae K., are pests of maize, Zea mays L., in some areas of the USA. Resistant genotypes are needed to reduce plant damage caused by this pest. Two laboratory and three field experiments were conducted in 1986 to determine the resistance-susceptibility of maize genotypes to an artificial infestation by the twospotted spider mite. Inbred line 41:25046 was high ...
DOI:
10.2135/cropsci1989.0011183X002900040020x

29. Wide Frame Tractive Vehicle for Controlled-Traffic Research

Author:
G. E. Monroe; E. C. Burt
Source:
Applied engineering in agriculture 1989 v.5 no.1 pp. 40-43
ISSN:
0883-8542
Subject:
Agricultural Research Service; agricultural machinery and equipment; controlled traffic systems; crop production; economics; production technology; vehicles (equipment)
Abstract:
... The concept of controlled-traffic farming is being applied increasingly in systems to improve the economics of agriculture. Wide-frame vehicles, or gantries, allow for traffic-free crop zones that are wider than the approximate 3 m attainable with conventional farm-tractor systems. Several research locations throughout the world have 5 to 10-m wide gantries in use on crop production systems. One g ...
DOI:
10.13031/2013.26474

30. Root Temperature and Calcium Level Effects on Winter Wheat Forage: I. Shoot and Root Growth

Author:
S. C. Miyasaka; D. L. Grunes
Source:
Agronomy journal 1990 v.82 no.2 pp. 236-242
ISSN:
0002-1962
Subject:
Agricultural Research Service; Hawaii; Triticum aestivum; agronomy; calcium; cold; forage; humans; lateral roots; metabolic diseases; pastures; root growth; soil water; spring; temperature; winter wheat
Abstract:
... Wheat pasture poisoning is a metabolic disorder of ruminants, that occurs particularly in the spring, during a sudden spurt in plant growth, under conditions of optimum temperature, ample soil moisture and adequate mineral supply. To determine the effects of an increase in root temperature and four Ca levels on the shoot and root growth of winter wheat (Triticum aestivum L. ‘Centurk’), seedlings w ...
DOI:
10.2134/agronj1990.00021962008200020013x

31. Topical Cellulase Application Effects on Tall Fescue Digestibility

Author:
J. R. Forwood; D. A. Sleper; J. A. Henning
Source:
Agronomy journal 1990 v.82 no.5 pp. 909-913
ISSN:
0002-1962
Subject:
Agricultural Research Service; Festuca arundinacea; agronomy; animals; dry matter digestibility; endo-1,4-beta-glucanase; enzyme activity; exposure duration; forage; montmorillonite; regrowth; silt loam soils; surfactants; topical application; Mexico; Missouri
Abstract:
... Two studies were conducted to assess the effects of topically applying a prepared cellulase solution (PCS) as a forage pretreatment to increase digestibility of tall fescue (Festuca arundinacea Schreb.). Fall regrowth and stockpiled tall fescue were harvested from the field (Mexico silt loam: fine montmorillonitic mesic Udollic Ochraqualf) and studied in laboratory Exp. 1 and 2, respectively. Expe ...
DOI:
10.2134/agronj1990.00021962008200050013x

32. Continuous Application of No-Tillage to Ohio Soils

Author:
W. A. Dick; E. L. McCoy; W. M. Edwards; R Lal
Source:
Agronomy journal 1991 v.83 no.1 pp. 65-73
ISSN:
0002-1962
Subject:
Agricultural Research Service; Fragiudalfs; Glycine max; agronomy; conventional tillage; corn; crop rotation; cultivars; no-tillage; organic matter; poorly drained soils; runoff; soil profiles; soybeans; surface water; watersheds; weather; Ohio
Abstract:
... No-tillage (NT) crop production practices have been continuously maintained at four sites in Ohio for more than 25 yr. The original experiments involving NT were designed to determine how much tillage was required to produce crops with satisfactory yields and how tillage and rotation interact to effect crop yields, especially corn (Zen mays L.). Long-term effects of NT on crop yields and soil prop ...
DOI:
10.2134/agronj1991.00021962008300010017x

33. Agricultural impacts in an arid environment: Walnut Gulch studies

Author:
Renard, K.G.; Lane, L.J.; Simanton, J.R.; Emmerich, W.E.; Stone, J.J.; Weltz, M.A.; Goodrich, D.C.; Yakowitz, D.S.
Source:
Hydrological science and technology 1993 v.9 no.1-4 pp. 145-190
Subject:
arid lands; Agricultural Research Service; research programs; agricultural watersheds; watershed hydrology; hydrologic models; simulation models; hydrologic cycle; rain; agricultural runoff; soil water balance; grazing; sediment yield; decision support systems; climate change; erosion control; water quality; Arizona
Handle:
10113/14770

34. A Rapid, Direct Measurement of Short Fiber Content

Author:
Charles K. Bragg; Frederick M. Shofner
Source:
Textile research journal 1993 v.63 no.3 pp. 171-176
ISSN:
0040-5175
Subject:
Agricultural Research Service; fabrics; fiber content; laboratory techniques; lint cotton; textile fibers
Abstract:
... Technology for rapidly determining cotton fiber length distributions using single fiber measurements has been developed jointly by USDA-ARS and Schaffner Tech nologies (now Zellweger Uster, Inc.). The instrument (AFIS) includes a mechanism for mechanically opening a hand-fed ribbon of fibers so that individual fibers can be presented aerodynamically to an electro-optical system for measuring fiber ...
DOI:
10.1177/004051759306300307

35. The United States Potato Introduction Station Herbarium

Author:
Bamberg, J.B.; Spooner, D.M.
Source:
Taxon 1994 v.43 no.3 pp. 489-496
ISSN:
0040-0262
Subject:
herbaria; Solanum; potatoes; wild relatives; introduced plants; plant genetic resources; germplasm; germplasm conservation; plant collections; Agricultural Research Service; Wisconsin
Abstract:
... The United States Potato Introduction Station Herbarium at Sturgeon Bay, Wisconsin, serves the National Research Support Program-6 (NRSP-6; formerly known as the Inter-Regional Potato Introduction Project IR-1). NRSP-6 is part of the US germplasm system and is the sole gene bank for wild and cultivated potatoes in the USA. The gene bank and herbarium are devoted entirely to wild and cultivated pot ...
Handle:
10113/2579

36. The U.S. National Plant Germplasm System

Author:
Shands, H.L.
Source:
Canadian journal of plant science 1995 v.75 no.1 pp. 9-15
ISSN:
0008-4220
Subject:
germplasm; history; plant breeding; cryopreservation; Agricultural Research Service; gene banks; organizations; databases; United States
DOI:
10.4141/cjps95-004

37. Nitrate Uptake and Assimilation and Chlorate Tolerance of Wheat

Author:
C. T. MacKown; D. A. Van Sanford; Christy G. Rothwell
Source:
Crop science 1996 v.36 no.2 pp. 313-318
ISSN:
0011-183X
Subject:
Agricultural Research Service; Triticum aestivum; chlorates; chlorophyll; chlorosis; crops; cultivars; herbicides; leaf blade; nitrates; nutrition; seedlings; soft red winter wheat; toxicity; Kentucky
Abstract:
... Productivity of nonlegume crops depends partly on nitrate uptake and reduction. To study the nitrate assimilation pathway of plants, the herbicide chlorate has been exploited as an analog of nitrate. Marked variations in visible leaf chlorosis among 15 soft red winter wheat (Triticum aestivum L.) seedlings exposed to 120 μM chlorate were reported by others. From their study, we selected three chlo ...
DOI:
10.2135/cropsci1996.0011183X003600020017x

38. Influence of Soil Moisture Regimes on Subsequent Soil Manganese Availability and Toxicity in Two Cotton Genotypes

Author:
Ray R. Weil; Charles D Foy; Carol A. Coradetti
Source:
Agronomy journal 1997 v.89 no.1 pp. 1-8
ISSN:
0002-1962
Subject:
Agricultural Research Service; Gossypium hirsutum; Hapludalfs; aeration; agronomy; air; cotton; dry matter accumulation; leaves; manganese; pH; seedling emergence; soil water; toxicity; water content; Maryland
Abstract:
... Differential plant tolerance to high levels of Mn and effects of changing soil aeration on Mn availability and are major factors in the problem of Mn toxicity in acid soils. A pot study was conducted to evaluate the effects of temporary flooding or drying on Mn forms and toxicity during subsequent cotton (Gossypium hirsutum L.) growth. Two acid, high-Mn Hapludalfs were incubated for 16 d in floode ...
DOI:
10.2134/agronj1997.00021962008900010001x

39. Root Zone Temperature and Calcium Effects on Phosphorus, Sulfur, and Micronutrients in Winter Wheat Forage

Author:
Susan C. Miyasaka; David L. Grunes
Source:
Agronomy journal 1997 v.89 no.5 pp. 743-748
ISSN:
0002-1962
Subject:
Agricultural Research Service; Hawaii; Triticum aestivum; absorption; adverse effects; agronomy; calcium; forage; humans; nutrient solutions; phosphorus; root zone temperature; sulfur; tropical agriculture; winter wheat
Abstract:
... An understanding of how environmental factors can alter accumulation of nutrients by plants is needed to anticipate and prevent mineral deficiencies in both plants and grazing animals. To determine the effects of root zone temperature (RZT) and Ca level on mineral concentrations of winter wheat (Triticum aestivum L.), ‘Centurk’ seedlings were grown under three RZT regimes (constant 8°C, constant 1 ...
DOI:
10.2134/agronj1997.00021962008900050006x

40. Agriculture–nutrition Linkages and the US Department of Agriculture: A Global View

Author:
Barbara O. Schneeman; Eileen Kennedy
Source:
Food and nutrition bulletin v.21 no.4 pp. 547-549
ISSN:
0379-5721
Subject:
Agricultural Research Service; agricultural research; environmental quality; nutrient requirements
Abstract:
... The Consultative Group on International Agricultural Research (CGIAR) system, like the US Department of Agriculture (USDA), has been successful in using research to improve the yield and efficiency of food systems. Our systems must now move beyond a focus on simply producing enough food to address fundamental issues of how to make the food system better able to meet the nutritional needs of consum ...
DOI:
10.1177/156482650002100440

41. Establishment of Big Bluestem and Illinois Bundleflower Mixtures with Imazapic and Imazethapyr

Author:
Daniel D. Beran; Robert A. Masters; Roch E. Gaussoin; Fernando Rivas-Pantoja
Source:
Agronomy journal 2000 v.92 no.3 pp. 460-465
ISSN:
0002-1962
Subject:
Agricultural Research Service; Andropogon gerardii; Desmanthus illinoensis; agronomy; cropland; forage; grasses; imazapic; imazethapyr; seed mixtures; weed control
Abstract:
... Weeds interfere with establishment of native grasses and legumes. A study was conducted to determine the influence of imazapic¹ 1Mention of a particular pesticide does not imply registration under FIFRA, nor does it constitute a recommendation by the University of Nebraska-Lincoln or the USDA-ARS. [(±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-methyl-3-pyridinecarboxylic ...
DOI:
10.2134/agronj2000.923460x

42. Long-term watershed research in USDA-Agricultural Research Service

Author:
Slaughter, Charles W.; Richardson, Clarence W.
Source:
Water resources impact 2000 v.2 no.4 pp. 28-31
ISSN:
1522-3175
Subject:
agricultural watersheds; research; Agricultural Research Service; watershed hydrology; United States
Handle:
10113/22873

43. Evaluation of the Phosphorus Index in Watersheds at the Regional Scale

Author:
A. S. Birr; D. J. Mulla
Source:
Journal of environmental quality 2001 v.30 no.6 pp. 2018-2025
ISSN:
1537-2537
Subject:
Agricultural Research Service; National Institute of Food and Agriculture; Natural Resources Conservation Service; agricultural land; agricultural management models; agricultural runoff; agricultural watersheds; basins; databases; education; eutrophication; freshwater; hydrologic models; lakes; losses from soil; monitoring; phosphorus; risk; streams; total phosphorus; water quality; Minnesota
Abstract:
... Agricultural losses of phosphorus (P) in runoff are a primary cause of eutrophication in many freshwater systems. A modified version of the P Index originally developed jointly by the USDA (Agricultural Research Service [ARS], Cooperative State Research, Education, and Extension Service [CSREES], and Natural Resources Conservation Service [NRCS]) was used to prioritize P loss vulnerability at the ...
DOI:
10.2134/jeq2001.2018

44. Geographic Database, Reynolds Creek Experimental Watershed, Idaho, United States

Author:
M. Seyfried; R. Harris; D. Marks; B. Jacob
Source:
Water Resources Research 2001 v.37 no.11 pp. 2825-2829
ISSN:
0043-1397
Subject:
Agricultural Research Service; Internet; databases; digital elevation models; geographic information systems; geography; hydrologic models; landscapes; monitoring; watersheds; Idaho
Abstract:
... The Reynolds Creek Experimental Watershed (RCEW) exhibits spatial variability typical of the intermountain region. We provide a geographic database to provide continuous spatial coverage of landscape properties that may be useful for distributed hydrological modeling or other kinds of spatial analyses and to provide a spatial context for point measurements that have been part of the long-term moni ...
Handle:
10113/60209
DOI:
10.1029/2001WR000414

45. Long-Term Lysimeter Database, Reynolds Creek Experimental Watershed, Idaho, United States

Author:
M. S. Seyfried; C. L. Hanson; M. D. Murdock; S. Van Vactor
Source:
Water Resources Research 2001 v.37 no.11 pp. 2853-2856
ISSN:
0043-1397
Subject:
Agricultural Research Service; Internet; climatic factors; data collection; databases; information sources; lysimeters; soil profiles; soil temperature; soil water; soil water content; temperature profiles; water resources; watersheds; Idaho
Abstract:
... We describe long-term lysimeter data collected at the Reynolds Creek Experimental Watershed. The length of record is 15 years for lysimeters at two sites representing different soil and climatic conditions. These data describe changes in soil water during the snow-free season. In addition to measuring changes in total soil water, soil water content profiles and soil temperature profiles were measu ...
Handle:
10113/60694
DOI:
10.1029/2001WR000422

46. Long-term soil temperature database, Reynolds Creek Experimental Watershed, Idaho, United States

Author:
M. S Seyfried; G. N. Flerchinger; M. D. Murdock; C. L. Hanson; S. Van Vactor
Source:
Water resources research 2001 v.37 no.11 pp. 2843-2846
ISSN:
1944-7973
Subject:
Agricultural Research Service; Internet; climate; data collection; databases; information sources; snow; soil depth; soil heterogeneity; soil profiles; soil temperature; water resources; watersheds; Idaho
Abstract:
... We describe long-term soil temperature data collected at the Reynolds Creek Experimental Watershed (RCEW). These data were collected for over 15 years at five locations representing different climatic regimes and soils in the RCEW. Measurements were made at several depths at each site to a depth of 180 cm in most cases. Each site is located in close proximity to a climate station. Descriptive soil ...
Handle:
10113/60687
DOI:
10.1029/2001WR000418

47. Long-term stream discharge and suspended-sediment database, Reynolds Creek Experimental Watershed, Idaho, United States

Author:
Frederick B. Pierson; Charles W. Slaughter; Zane K. Cram
Source:
Water resources research 2001 v.37 no.11 pp. 2857-2861
ISSN:
1944-7973
Subject:
Agricultural Research Service; Internet; data collection; databases; information sources; rangelands; streams; suspended sediment; watersheds; Idaho
Abstract:
... The U.S. Department of Agriculture, Agricultural Research Service, Northwest Watershed Research Center initiated a stream discharge and suspended-sediment research program at Reynolds Creek Experimental Watershed in the early 1960s. Continuous discharge measurements began at two sites in 1963, at three additional sites in 1964, and at eight additional sites in subsequent years. Contributing areas ...
Handle:
10113/60696
DOI:
10.1029/2001WR000420

48. A Relational Database for Agronomic and Genealogical Sugarcane Data

Author:
Eric T. Stafne; James S. Brown; James M. Shine
Source:
Agronomy journal 2001 v.93 no.4 pp. 923-928
ISSN:
0002-1962
Subject:
Agricultural Research Service; breeding programs; computer software; crossing; cultivars; databases; inventories; pedigree; plant breeding; planting; seedlings; sugarcane; true seeds
Abstract:
... A comprehensive relational database has been created at the USDA-ARS Canal Point Sugarcane Field Station to facilitate the entry and retrieval of data for the breeding program using Microsoft Access 2000. This software is readily available and easily adaptable to a wide variety of breeding programs. A relational database provides an efficient and powerful way to store, retrieve, manipulate, query, ...
DOI:
10.2134/agronj2001.934923x

49. 'Biloxi' southern highbush blueberry

Author:
Spiers, J.M.; Stringer, S.J.; Draper, A.D.; Gupton, C.L.
Source:
Acta horticulturae 2002 v. no.574 pp. 153-155
ISSN:
0567-7572
Subject:
Agricultural Research Service; Vaccinium corymbosum; blueberries; breeding; coastal plains; color; cultivars; diploidy; firmness; flavor; growers; hexaploidy; markets; parentage; planting; pollination; ripening; spring; tetraploidy; Southeastern United States
Abstract:
... ‘Biloxi’ tetraploid southern highbush blueberry is a new cultivar developed and released by the Agricultural Research Service of the U.S. Department of Agriculture breeding programs in Beltsville, MD, and Poplarville MS. Plants of “Biloxi’ are upright, vigorous and productive. The fruit ripens early, has medium size, with good color, firmness, stem scar, and flavor. Although ‘Biloxi’ is predominan ...
DOI:
10.17660/ActaHortic.2002.574.21

50. Elimination of viruses from the USDA Pyrus germplasm collection

Author:
Postman, J.D.; Sugar, D.
Source:
Acta horticulturae 2002 v. no.596 pp. 529-530
ISSN:
0567-7572
Subject:
Agricultural Research Service; Pyrus; apical meristems; clones; cultivars; genotype; germplasm; germplasm conservation; hybrids; indicator species; pears; seed trees; viruses; Oregon
Abstract:
... The national genebank for Pyrus in the U.S.A. is maintained by the United States Department of Agriculture, Agricultural Research Service at the National Clonal Germplasm Repository in Corvallis, Oregon. This collection represents world diversity for pears and includes over 1700 accessions representing the 26 major taxa of Pyrus and their hybrids. Clonal genotypes are stored as orchard trees with ...
DOI:
10.17660/ActaHortic.2002.596.88