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Displaying items 1 - 10 of 20 start over

1. Development and evaluation of the RZWQM-CROPGRO hybrid model for soybean production

Description:
Includes references
Author:
Ma, L. , Hoogenboom, G. , Ahuja, L.R. , Nielsen, D.C. , Ascough, J.C. II
Subject:
Glycine max , soybeans , field crops , plant growth , crop models , decision support systems , rhizosphere , soil water content , soil fertility , nitrogen , soil temperature , evapotranspiration , water uptake , nutrient uptake , water stress , computer software
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

2. Differences in yields, residue composition and N mineralization dynamics of Bt and non-Bt maize

Description:
Includes references
Author:
Mungai, N.W. , Motavalli, P.P. , Nelson, K.A. , Kremer, R.J.
Subject:
nitrogen , soil nutrient balance , grain yield , soil mineralogy , Bacillus thuringiensis , insecticidal proteins , crystal proteins , transgenes , transgenic plants , dry matter accumulation , Zea mays , soil fertility , soil texture , tillage , corn , field experimentation , crop residues , soil ecology
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

3. Effects of broiler litter on soybean production and soil nitrogen and phosphorus concentrations

Description:
Includes references
Author:
Adeli, A. , Sistani, K.R. , Rowe, D.E. , Tewolde, H.
Subject:
poultry manure , soil amendments , application rate , Glycine max , soybeans , grain yield , soil fertility , nitrogen , phosphorus , clay loam soils , nitrogen fertilizers , fertilizer application , nitrates , nutrient uptake , nutrient use efficiency , Mississippi
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

4. Effects of overseeding cool-season annuals on hay yield and nitrogen and phosphorus uptake by Tifton 44 bermudagrass fertilized with swine effluent

Description:
Includes references
Author:
McLaughlin, M.R. , Sistani, K.R. , Fairbrother, T.E. , Rowe, D.E.
Subject:
Cynodon dactylon , forage grasses , forage crops , hay , nutrient management , forage legumes , Triticum aestivum , wheat , grain crops , crop yield , dry matter accumulation , nutrient uptake , phosphorus , soil fertility , Trifolium alexandrinum , pig manure , effluents , fertilizer application , nitrogen , Mississippi
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

5. Evaluation of dairy manure nitrogen-15 enrichment methods on short-term crop and soil nitrogen budgets

Description:
Includes references
Author:
Powell, J.M. , Kelling, K.A. , Munoz, G.R. , Cusick, P.R.
Subject:
cover crops , crop production , crop management , cropping systems , field crops , grasses , costs and returns , crop yield , legumes , literature reviews , cattle manure , nitrogen , stable isotopes , isotope labeling , nitrogen content , soil amendments , soil nutrient balance , soil fertility , soil nutrients , agricultural soils , silt loam soils , nutrient uptake , Zea mays , corn , United States , Michigan
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

6. Fate of nitrogen-15 in a long-term rate study. II. Nitrogen uptake efficiency

Description:
Includes references
Author:
Stevens, W.B. , Hoeft, R.G. , Mulvaney, R.L.
Subject:
Zea mays , corn , grain crops , nitrogen fertilizers , ammonium nitrate , fertilizer rates , long term experiments , nutrient uptake , nutrient use efficiency , nitrogen , stable isotopes , mineralization , temporal variation , losses from soil , soil fertility , Illinois
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

7. Global soil nutrient depletion and yield reduction

Description:
Includes references
Author:
Tan, Z.X. , Lal, R. , Wiebe, K.D.
Subject:
soil fertility , soil quality , crop production , environmental factors , socioeconomic status , literature reviews , soil nutrient balance , environmental impact , grain crops , nitrogen , nitrogen fertilizers , fertilizer rates , soil degradation
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

8. Grazing impacts on spatial distribution of soil and herbaceous characteristics in an Australian tropical woodland

Description:
Includes references
Author:
Northup, B.K. , Brown, J.R. , Ash, A.J.
Subject:
tropical forests , woodlands , grazing , spatial variation , silvopastoral systems , soil chemistry , forage grasses , soil-plant interactions , soil fertility , nitrogen , carbon , soil organic matter , forage , grazing management , plant communities , Queensland
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

9. Herbage nitrogen recovery in a meadow and loblolly pine alley

Description:
Includes references
Author:
Burner, D.M. , MacKown, C.T.
Subject:
Pinus taeda , forest trees , Festuca arundinacea , grasses , alley cropping , pastures , microclimate , spatial variation , nitrogen , nutrient uptake , shade , application rate , rotational grazing , nitrogen fertilizers , soil fertility , dry matter accumulation , yields , solar radiation , water stress , plant competition , Arkansas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

10. Invasion by a N₂-fixing tree alters function and structure in wet lowland forests of Hawaii

Description:
Includes references
Author:
Hughes, R.F. , Denslow, J.S.
Subject:
Falcataria moluccana , invasive species , trees , lowland forests , ecological invasion , community ecology , forest ecology , environmental impact , ecological succession , forest succession , forest litter , nitrogen content , soil fertility , nitrogen , phosphorus , Psidium , Metrosideros polymorpha , Hawaii
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005