PubAg

Main content area

You searched for: Journal Soil science Remove constraint Journal: Soil science Subject agricultural soils Remove constraint Subject: agricultural soils Text Availability Full Text Remove constraint Text Availability: Full Text
Start Over

Search

28  Search Results

1 - 28 of 28
Number of results to display per page

Search Results

1. Nitrogen and phosphorus forms in soils receiving manure

Author:
SHARPLEY, ANDREW N.; SMITH, S. J.
Source:
Soil science 1995 v.159 no.4 pp. 253
ISSN:
0038-075X
Subject:
agricultural soils; poultry manure; cattle manure; land application; nitrogen; phosphorus; nutrient availability; inorganic compounds; organic compounds; losses from soil; land productivity; long term experiments; pig manure; application rate; Oklahoma; Texas
Abstract:
... Increasing production of beef, poultry, and swine from confined feeding operations in the Southern Plains necessitates that larger amounts of manure be applied to limited areas of agricultural land. If long-term manure applications of nitrogen (N) and phosphorus (P) in manure exceed crop removal, the accumulation of soil N and P can result in levels that pose a problem of concern to both surface a ...
Handle:
10113/19020
DOI:
10.1097/00010694-199504000-00004

2. Irrigation water effects on infiltration rate in the northern great plains

Author:
Wienhold, Brian J.; Trooien, Todd P.
Source:
Soil science 1998 v.163 no.11 pp. 853
ISSN:
0038-075X
Subject:
glacial soils; sandy soils; loam soils; agricultural soils; irrigation water; irrigated soils; water quality; salinity; sodium; adsorption; application rate; sodicity; North Dakota
Abstract:
... Supplemental irrigation is expanding in the Northern Great Plains. Limited access to water of suitable quality for sustained irrigation and uncertainty about the impact of the use of marginal water on the soil resource will limit adoption of this practice. The objectives of this study were to determine the effect of irrigation water quality and amount on the infiltration rate, Q, at 50, 100, and 1 ...
Handle:
10113/7654
DOI:
10.1097/00010694-199811000-00002

3. Using soil phosphorus behavior to identify environmental thresholds

Author:
Kleinman, Peter J.A; Bryant, Ray B; Reid, W. Shaw; Sharpley, Andrew N; Pimentel, David
Source:
Soil science 2000 v.165 no.12 pp. 943
ISSN:
0038-075X
Subject:
phosphorus; agricultural soils; nutrient availability; sorption; sorption isotherms; loam soils; silt loam soils; calcium chloride; New York
Abstract:
... Concern over the transport of phosphorus from agricultural soils to surface waters has focused attention on the role of soil phosphorus in environmental risk assessment. This study explores the existence of natural soil phosphorus thresholds as expressed by Quantity/Intensity relationships. Fifty-nine samples, collected from agricultural soils in New York's Delaware River Watershed, were analyzed ...
Handle:
10113/20491
DOI:
10.1097/00010694-200012000-00004

4. Phosphorus leaching through intact soil columns before and after poultry manure application

Author:
Kleinman, Peter J. A.; Srinivasan, M. S.; Sharpley, Andrew N.; Gburek, William J.
Source:
Soil science 2005 v.170 no.3 pp. 153
ISSN:
0038-075X
Subject:
poultry manure; soil amendments; phosphorus; leaching; soil transport processes; macropore flow; preferential flow; loam soils; agricultural soils; Pennsylvania
Abstract:
... Recent application of manure can increase phosphorus (P) loss from soil in subsurface flow (e.g., drainage water). This study investigated vertical leaching of P through two soils. Eight 30- and 50-cm-deep, intact soil columns (30-cm diameter) were collected. Columns were irrigated periodically (2.4 cm day) before and after surface application of poultry manure (85 kg total P ha), continuing for 1 ...
Handle:
10113/19030
DOI:
10.1097/00010694-200503000-00001

5. Corn root influence on automated measurement of soil carbon dioxide concentrations

Author:
Chen, D.; Molina, J. A. E.; Clapp, C. E.; Venterea, R. T.; Palazzo, A. J.
Source:
Soil science 2005 v.170 no.10 pp. 779
ISSN:
0038-075X
Subject:
gas production (biological); Zea mays; roots; cell respiration; soil respiration; soil microorganisms; soil air; carbon dioxide; sensors; rhizosphere; agricultural soils; silt loam soils
Abstract:
... Carbon dioxide (CO2) production is a more desirable indicator of soil carbon (C) dynamics than CO2 flux at the soil-air interface, which is significantly influenced by the gas-transport condition of the soil. Production of CO2 can be computed from CO2 concentrations if high-temporal measurements are made. Our objective was to design, implement, and test an automated CO2 measurement system that req ...
Handle:
10113/22288
DOI:
10.1097/01.ss.0000190512.41298.fc

6. Soil physical properties and aggregate-associated c, n, and p distributions in organic and conventional cropping systems

Author:
Green, V. Steven; Cavigelli, Michel A.; Dao, Thanh H.; Flanagan, Dennis C.
Source:
Soil science 2005 v.170 no.10 pp. 822
ISSN:
0038-075X
Subject:
organic production; crop production; cropping systems; no-tillage; sustainable agriculture; soil physical properties; soil aggregates; chiseling; soil fertility; nitrogen; phosphorus; carbon; soil organic matter; water erosion; losses from soil; soil nutrient dynamics; bulk density; aggregate stability; particle size distribution; agricultural soils; Maryland
Abstract:
... Organic farming, which is growing in popularity, has been proposed as a sustainable alternative to conventional farming practices. However, it is not known how organic farming systems affect soil erosion risk and sediment-bound nutrient transport. Our objectives were to compare soil erosion risk and sediment bound nutrient transport potential for grain-based conventional and organic cropping syste ...
Handle:
10113/41471
DOI:
10.1097/01.ss.0000190509.18428.fe

7. Spatial relationships among soil physical properties in a grass-alfalfa hay field

Author:
Jabro, Jay D.; Stevens, Bart W.; Evans, Robert G.
Source:
Soil science 2006 v.171 no.9 pp. 719
ISSN:
0038-075X
Subject:
fields; Medicago sativa; Agropyron cristatum; forage grasses; forage legumes; soil heterogeneity; spatial variation; bulk density; soil physical properties; soil water content; geostatistics; soil strength; sandy loam soils; sand fraction; clay fraction; agricultural soils; A horizons; North Dakota
Abstract:
... Knowledge of the spatial variability of soil physical properties is important for site-specific soil management. The objectives of this study were to characterize the field-scale spatial variability of cone index (CI), soil bulk density (ρb), moisture content (θv), and sand and clay contents in the A horizon of a Lihen sandy loamy soil (sandy, mixed, frigid Entic Haplustoll), and to describe the r ...
Handle:
10113/50500
DOI:
10.1097/01.ss.0000228044.87894.aa

8. Surface and subsurface solute transport properties at row and interrow positions

Author:
Gaur, Anju; Jaynes, Dan B.; Horton, Robert; Ochsner, Tyson E.
Source:
Soil science 2007 v.172 no.6 pp. 419
ISSN:
0038-075X
Subject:
soil transport processes; solutes; time domain reflectometry; soil water movement; macropore flow; electrical conductivity; soil profiles; topsoil; agricultural soils; strip cropping; Zea mays; corn; Glycine max; soybeans; Avena sativa; oats; Iowa
Abstract:
... Although numerous studies have investigated the effects of crop production practices on soil water dynamics, not much information is available on the impact of row position on solute transport. A field experiment was carried out to evaluate surface and subsurface solute transport properties in plant row, nontrafficked interrow, and trafficked interrow positions. For this purpose, a plot of 14 × 14 ...
Handle:
10113/7046
DOI:
10.1097/ss.0b013e3180471c72

9. Bioactive phosphorus loss in simulated runoff from a phosphorus-enriched soil under two forage management systems

Author:
Green, V. S.; Dao, T. H.; Stone, G.; Cavigelli, M. A.; Baumhardt, R. L.; Devine, T. E.
Source:
Soil science 2007 v.172 no.9 pp. 721
ISSN:
0038-075X
Subject:
agricultural runoff; losses from soil; phosphorus; agricultural soils; silt loam soils; pastures; Dactylis glomerata; Trifolium pratense; no-tillage; Glycine max; soybeans; Triticum aestivum; winter wheat; crop rotation; forage crops; soil amendments; cattle manure; Maryland
Abstract:
... Although runoff from phosphorus (P)-enriched soils contains more P than the functionally defined molybdate-reactive P, information on the biological significance of the remaining fraction is limited. A study was conducted to characterize distributions of inorganic and enzyme-labile P forms in simulated runoff from a silt loam soil (Typic Hapludults) under orchard grass (Dactylis glomerata L.)-red ...
Handle:
10113/7520
DOI:
10.1097/SS.0b013e31809eda32

10. Using pyrolysis molecular beam mass spectrometry to characterize soil organic carbon in native prairie soils

Author:
Magrini, Kimberly Ann; Follett, Ronald F.; Kimble, John; Davis, Mark F.; Pruessner, Elizabeth
Source:
Soil science 2007 v.172 no.9 pp. 659
ISSN:
0038-075X
Subject:
prairie soils; soil organic carbon; soil analysis; chemical composition; pyrolysis; mass spectrometry; agricultural soils; carbon sequestration; soil microorganisms; immobilization in soil; carbon; rapid methods; Corn Belt region; Great Plains region
Abstract:
... The goal of this study was to test if analytical pyrolysis coupled with molecular beam mass spectrometry and multivariate statistical analyses could provide a rapid and accurate methodology to identify and quantify soil carbon fractions and understand the fundamental chemistry that distinguishes these fractions. We analyzed soil organic carbon (SOC) contained in well-characterized agricultural soi ...
Handle:
10113/7519
DOI:
10.1097/ss.0b013e3180d0a3a5

11. Real-time soil profile water content as influenced by weed-corn competition

Author:
Sadeghi, Ali M.; Starr, James L.; Teasdale, John R.; Rosecrance, Richard C.; Rowland, Randy A.
Source:
Soil science 2007 v.172 no.10 pp. 759
ISSN:
0038-075X
Subject:
soil water storage; agricultural soils; soil water content; soil profiles; infiltration (hydrology); capacitance probes; crop-weed competition; Zea mays; corn; Panicum dichotomiflorum; plant growth; drought; soil water deficit; dryland farming; no-tillage; Maryland
Abstract:
... Weeds compete with crops for belowground resources; however, there is little detailed information on relative dynamics of soil water during competitive interactions. This research was conducted to determine changes in soil-water storage (CSWS) in rain-fed no-tillage corn (Zea mays L.) production in the presence or absence of weed competition over two droughty growing seasons. Weeds at the experime ...
Handle:
10113/9636
DOI:
10.1097/ss.0b013e3180de4a14

12. Soil carbon sequestration to mitigate climate change and advance food security

Author:
Lal, R.; Follett, R. F.; Stewart, B. A.; Kimble, J. M.
Source:
Soil science 2007 v.172 no.12 pp. 943
ISSN:
0038-075X
Subject:
soil organic carbon; carbon sequestration; soil quality; soil degradation; afforestation; agroforestry; range management; pastures; conservation tillage; global warming; climate change; food security; agricultural soils; food production; food crops
Abstract:
... World soils have been a source of atmospheric carbon dioxide since the dawn of settled agriculture, which began about 10 millennia ago. Most agricultural soils have lost 30% to 75% of their antecedent soil organic carbon (SOC) pool or 30 to 40 t C ha. The magnitude of loss is often more in soils prone to accelerated erosion and other degradative processes. On a global scale, CO2-C emissions since ...
Handle:
10113/9747
DOI:
10.1097/ss.0b013e31815cc498

13. Repeatability of soil apparent electrical conductivity measured by a coulter sensor

Author:
Jabro, Jay David; Evans, Robert G.; Stevens, William B.; Iversen, William M.
Source:
Soil science 2008 v.173 no.1 pp. 35
ISSN:
0038-075X
Subject:
soil properties; electrical conductivity; sensors; sandy loam soils; clay loam soils; measurement; soil depth; spatial variation; fields; agricultural soils
Abstract:
... Apparent electrical conductivity (ECa) measured using an on-the-go coulter sensor offers advantages for mapping soil variability because detailed data can be collected easily and inexpensively using on-the-go ECa sensors. However, there has been little research investigating the repeatability of these sensors, which may be defined as their ability to reproduce the same ECa measurement when operate ...
Handle:
10113/10719
DOI:
10.1097/ss.0b013e318159a608

14. Monitoring changes in the chemical properties of an oxisol under long-term no-tillage management in subtropical brazil

Author:
Guimarães, M. Fátima; Fonseca, Inês C. B.; Brossard, Michel; Portella, Cibele M. R.; Brito, Osmar R.; Ritchie, Jerry C.
Source:
Soil science 2008 v.173 no.6 pp. 408
ISSN:
0038-075X
Subject:
Oxisols; no-tillage; agricultural soils; long term experiments; soil organic carbon; exchangeable calcium; exchangeable magnesium; exchangeable potassium; phosphates; soil pH; clay soils; soil chemistry; subtropical soils; Brazil
Abstract:
... In tropical areas, soil chemical properties are most often studied in relationship to the type of tillage system. This article presents data of the long-term effects of no-tillage (NT) management systems on the soil chemical properties of an oxisol in subtropical Brazil. The study area was on a commercial farm where NT systems had been adopted in 1978. Soil samples were collected annually from 198 ...
Handle:
10113/21032
DOI:
10.1097/SS.0b013e31817739fb

15. Transport of 17β-estradiol and testosterone in a field lysimeter

Author:
Casey, Francis X. M.; Oduor, Peter G.; Hakk, Heldur; Larsen, Gerald L.; DeSutter, Thomas M.
Source:
Soil science 2008 v.173 no.7 pp. 456
ISSN:
0038-075X
Subject:
testosterone; estradiol; soil transport processes; soil pollution; lysimeters; agricultural soils; balance studies; environmental fate
Abstract:
... 17β-Estradiol (E2) and testosterone (T) are present in sources such as waste treatment effluent and manures, and can potentially disrupt aquatic organisms at low concentrations. Laboratory studies consistently indicate limited mobility and rapid attenuation of E2 and T in soils; however, these hormones are regularly detected in the environment. A steady-state field lysimeter (2.4 m in length × 2.4 ...
Handle:
10113/21300
DOI:
10.1097/SS.0b013e318178e71f

16. Phosphorus in runoff from two watersheds in lost river basin, west virginia

Author:
Elrashidi, Moustafa Ali; Seybold, Cathy A.; Wysocki, Douglas A.; Peaslee, Steve D.; Ferguson, Richard; West, Larry T.
Source:
Soil science 2008 v.173 no.11 pp. 792
ISSN:
0038-075X
Subject:
agricultural watersheds; agricultural runoff; phosphorus; losses from soil; nonpoint source pollution; surface water; water quality; forested watersheds; forest soils; agricultural soils; pastures; poultry manure; soil amendments; pH; rivers; West Virginia
Abstract:
... The loss of nutrients in runoff from soils treated with heavy manure application is a major cause of poor surface water quality in the United States. Poultry production in the Hardy County, West Virginia, has increased considerably since the early 1990s. The Lost River basin contains the highest density of poultry houses in the county. Most of phosphorus (P)-rich manure produced is land applied, a ...
Handle:
10113/21852
DOI:
10.1097/SS.0b013e31818a5495

17. Impact of Biochar Amendment on Fertility of a Southeastern Coastal Plain Soil

Author:
Novak, Jeffrey M.; Busscher, Warren J.; Laird, David L.; Ahmedna, Mohamed; Watts, Don W.; Niandou, Mohamed A. S.
Source:
Soil science 2009 v.174 no.2 pp. 105
ISSN:
0038-075X
Subject:
coastal plain soils; agricultural soils; loamy sand soils; soil amendments; charcoal; pecan shells; soil fertility; soil nutrients; calcium; potassium; manganese; phosphorus; sulfur; zinc; sodium; leachates; electrical conductivity; biochar
Abstract:
... Agricultural soils in the southeastern U.S. Coastal Plain region have meager soil fertility characteristics because of their sandy textures, acidic pH values, kaolinitic clays, low cation exchange capacities, and diminutive soil organic carbon contents. We hypothesized that biochar additions will help ameliorate some of these fertility problems. The study objectives were to determine the impact of ...
Handle:
10113/27438
DOI:
10.1097/SS.0b013e3181981d9a

18. Phosphorus mobility in soil columns treated with dairy manures and commercial fertilizer

Author:
Tarkalson, David Dale; Leytem, April B.
Source:
Soil science 2009 v.174 no.2 pp. 73
ISSN:
0038-075X
Subject:
dairy manure; liquid manure; soil amendments; fertilizer application; monoammonium phosphate; phosphorus fertilizers; phosphorus; leaching; agricultural soils; sandy loam soils; leachates; organic compounds; losses from soil; calcareous soils; chemical precipitation
Abstract:
... The concentration of animal production in some areas of the United States has led to concern about the environmental fate of manure-derived phosphorus (P) in soils. A column study was conducted to quantify P leaching in a calcareous soil treated with monoammonium phosphate (MAP), two solid dairy manures (D1S and D2S), and two liquid dairy manures (D1L and D2L). A control with no P application was ...
Handle:
10113/27435
DOI:
10.1097/SS.0b013e31819750la

19. Tillage Effects on Soil Properties and Spatial Variability in Two Mississippi Delta Watersheds

Author:
Yuan, Yongping; Locke, Martin A.; Gaston, Lewis A.
Source:
Soil science 2009 v.174 no.7 pp. 385
ISSN:
0038-075X
Subject:
agricultural watersheds; tillage; alluvial soils; agricultural soils; reduced tillage; spatial variation; immobilization in soil; soil organic matter; soil fertility; phosphorus; nitrate nitrogen; soil pH; potassium; calcium; magnesium; delta soils; Gossypium hirsutum; cotton; Triticum aestivum; wheat; cover crops; Mississippi
Abstract:
... This study evaluated changes in soil properties several years after implementation of conservation measures. Two approximately 50-ha fields within two Mississippi Delta oxbow lake watersheds (Deep Hollow and Beasley) were laid out in 60-m grids. Soil from a tilled cotton field in Deep Hollow watershed was sampled at each node in 1996 and again in 2000 after 4 years of reduced tillage cotton (Gossy ...
Handle:
10113/36017
DOI:
10.1097/SS.0b013e3181ac679c

20. Influence of Tillage, Cropping, and Nitrogen Source on the Chemical Characteristics of Humic Acid, Fulvic Acid, and Water-Soluble Soil Organic Matter Fractions of a Long-Term Cropping System Study

Author:
Ohno, Tsutomu; He, Zhongqi; Tazisong, Irenus A.; Senwo, Zachary N.
Source:
Soil science 2009 v.174 no.12 pp. 652
ISSN:
0038-075X
Subject:
crop production; agricultural soils; silt loam soils; soil organic matter; humic acids; fulvic acids; conventional tillage; no-tillage; fertilizer application; ammonium nitrate; poultry manure; fertilizer rates; application rate; cropping systems; Gossypium hirsutum; cotton; Zea mays; corn; Secale cereale; rye; crop rotation; spectroscopy; humic substances; stubble tillage; Alabama
Abstract:
... The characterization of organic matter in agroecosystems is important because of its involvement in many important soil ecosystem processes. Humic acid, fulvic acid, and water-extractable organic matter from a 9-year agroecosystem study investigating the effects of tillage, cropping system, and N source was characterized using multidimensional fluorescence spectroscopy with parallel factor analysi ...
Handle:
10113/37575
DOI:
10.1097/SS.0b013e3181c30808

21. Measuring Particle Size Distribution Using Laser Diffraction: Implications for Predicting Soil Hydraulic Properties

Author:
Segal, Eran; Shouse, Peter J.; Bradford, Scott A.; Skaggs, Todd H.; Corwin, Dennis L.
Source:
Soil science 2009 v.174 no.12 pp. 639
ISSN:
0038-075X
Subject:
agricultural soils; particle size distribution; lasers; soil hydraulic properties; saturated hydraulic conductivity; sand fraction; silt fraction; clay fraction
Abstract:
... Methods to predict soil hydraulic properties frequently require information on the particle size distribution (PSD). The objectives of this study were to investigate various protocols for rapidly measuring PSD using the laser diffraction technique, compare the obtained PSD with those determined using the traditional hydrometer-and-sieves method (HSM), and assess the accuracy of soil hydraulic prop ...
Handle:
10113/37578
DOI:
10.1097/SS.0b013e3181c2a928

22. Total Phosphorus, Zinc, Copper, and Manganese Concentrations in Cecil Soil Through 10 Years of Poultry Litter Application

Author:
He, Zhongqi; Endale, Dinku M.; Schomberg, Harry H.; Jenkins, Michael B.
Source:
Soil science 2009 v.174 no.12 pp. 687
ISSN:
0038-075X
Subject:
poultry manure; soil amendments; long term experiments; agricultural soils; phosphorus; zinc; copper; manganese; soil fertility; soil chemistry; soil nutrients; no-tillage; conservation tillage; Georgia
Abstract:
... Poultry litter (PL) is an inexpensive and effective source of plant nutrients. However, overapplication could result in phosphorus (P) and heavy metal accumulation in soils. A field experiment evaluating PL application to a Cecil soil used for cotton and corn production has been maintained for 10 years. At the end of the cotton phase (i.e., the first 5 years), PL annually applied at 4.5 Mg ha did ...
Handle:
10113/37576
DOI:
10.1097/SS.0b013e3181c30821

23. Soil Property and Landscape Position Effects on Seasonal Nitrogen Mineralization of Composted Dairy Manure

Author:
Watts, Dexter B.; Torbert, H. Allen; Prior, Stephen A.
Source:
Soil science 2010 v.175 no.1 pp. 27
ISSN:
0038-075X
Subject:
dairy manure; composted manure; soil amendments; nitrogen; mineralization; seasonal variation; summer; winter; biological activity in soil; topography; air temperature; soil texture; sandy loam soils; loam soils; agricultural soils; Alabama
Abstract:
... To develop better management practices that optimize the N derived from manure, additional research is needed regarding the mineralization and dynamics of N under field conditions. Thus, an in situ field study using three different soil types located in an agricultural field was conducted to evaluate N mineralization patterns during the summer and winter months. The three Coastal Plain soils (Ulti ...
Handle:
10113/38901
DOI:
10.1097/SS.0b013e3181ca38ff

24. Clinoptilolite Zeolite Influence on Inorganic Nitrogen in Silt Loam and Sandy Agricultural Soils

Author:
Tarkalson, David D.; Ippolito, James A.
Source:
Soil science 2010 v.175 no.7 pp. 357
ISSN:
0038-075X
Subject:
soil fertility; soil amendments; fertilizer application; zeolites; application rate; soil chemistry; nitrogen content; ammonium compounds; nitrates; inorganic compounds; quantitative analysis; silt loam soils; agricultural soils; sandy soils; leaching; losses from soil; soil nutrient dynamics; nutrient availability; Idaho
Abstract:
... Development of best management practices can help improve inorganic nitrogen (N) availability to plants and reduce nitrate-nitrogen (NO3−N) leaching in soils. This study was conducted to determine the influence of the zeolite mineral clinoptilolite (CL) additions on NO3−N and ammonium-nitrogen (NH4−N) in two common Pacific Northwest soils. The effects of CL application rate (up to 26.9 Mg ha) eith ...
Handle:
10113/48866
DOI:
10.1097/SS.0b013e3181e771d1

25. Effects of Elevated CO2 and Agricultural Management on Flux of Greenhouse Gases From Soil

Author:
Smith, Katy E.; Runion, G. Brett; Prior, Stephen A.; Rogers, Hugo H.; Torbert, H. Allen
Source:
Soil science 2010 v.175 no.7 pp. 349
ISSN:
0038-075X
Subject:
gas emissions; greenhouse gases; cropping systems; carbon dioxide; nitrous oxide; methane; agricultural soils; conservation tillage; conventional tillage; elevated atmospheric gases; climate change
Abstract:
... To evaluate the contribution of agriculture to climate change, the flux of greenhouse gases from different cropping systems must be assessed. Soil greenhouse gas flux (CO2, N2O, and CH4) was assessed during the final growing season in a long-term (10-year) study evaluating the effects of crop management (conservation and conventional) and atmospheric CO2 (ambient and twice ambient) on a Decatur si ...
Handle:
10113/44397
DOI:
10.1097/SS.0b013e3181e93d3c

26. Soil Microbial Community Dynamics as Influenced by Composted Dairy Manure, Soil Properties, and Landscape Position

Author:
Watts, Dexter B.; Torbert, H. Allen; Feng, Yucheng; Prior, Stephen A.
Source:
Soil science 2010 v.175 no.10 pp. 474
ISSN:
0038-075X
Subject:
soil microorganisms; soil ecology; population dynamics; soil amendments; composted manure; dairy manure; soil texture; soil structure; landscape position; agricultural soils; precision agriculture; soil fertility; microbial activity; soil nutrient dynamics; nitrogen content; enzyme activity; phospholipids; fatty acids; quantitative analysis; seasonal variation; statistical analysis; Alabama
Abstract:
... Manure applications can benefit crop productivity by adding required nutrients and organic matter to soil. There is a paucity of information on how soil microbial community dynamics will be altered by the application of manure to different landscape positions. Thus, an in situ field study was conducted during the summer and winter months to evaluate microbiological properties of three soil types t ...
Handle:
10113/46797
DOI:
10.1097/SS.0b013e3181f7964f

27. Copper Impacts on Corn, Soil Extractability, and the Soil Bacterial Community

Author:
Ippolito, James Anthony; Ducey, Tom; Tarkalson, David
Source:
Soil science 2010 v.175 no.12 pp. 586
ISSN:
0038-075X
Subject:
Zea mays; corn; copper; phytotoxicity; application rate; plant growth; nutrient uptake; soil-plant interactions; soil nutrient dynamics; soil bacteria; mortality; species diversity; sheep feeding; cattle feeding; agricultural soils; Haplocalcids; Calciaquolls; Idaho
Abstract:
... Dairies use CuSO4 footbaths to control hoof infections, with Cu accumulation in agricultural soils realized when spent footbaths are disposed of in waste lagoons and subsequently used for irrigation. We investigated the effect of Cu applications (up to 1000 mg kg) to a Xeric Haplocalcid (Declo series) and a Typic Calciaquoll (Logan series) on corn (Zea mays L.) growth and Cu concentration, soil to ...
Handle:
10113/48599
DOI:
10.1097/SS.0b013e3181fe2960

28. Characteristics of Soil Water-Soluble Organic C and N Under Different Land Uses in Alaska

Author:
Zhao, Aiqin; Zhang, Mingchu; He, Zhongqi
Source:
Soil science 2012 v.177 no.12 pp. 683
ISSN:
0038-075X
Subject:
Conservation Reserve Program; agricultural land; agricultural soils; filtration; fluorescence; forest soils; forests; grasslands; land use change; organic nitrogen compounds; soil management; soil organic carbon; soil sampling; spectroscopy; subarctic soils; Alaska
Abstract:
... Land use conversion induces quantitative change of soil water-soluble organic matter (WSOM), but knowledge of such change is still limited. In this study, field moist and air-dried soils sampled from subarctic Alaska under three land use managements (i.e., forest, agriculture, and grassland converted from agricultural use and under a Conservation Reserve Program [CRP]) were extracted with deionize ...
Handle:
10113/55974
DOI:
10.1097/SS.0b013e31827e1fa8