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Subjects United States Remove constraint United States: United States Subjects cropping systems Remove constraint cropping systems: cropping systems Subjects crop yield Remove constraint crop yield: crop yield

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1. Comparing production practices and costs for continuous corn and corn-soybean cropping systems

Description:: Includes references
Author:: Daberkow, S. , Payne, J. , Schepers, J.
Subject:: crop production , cropping systems , corn , soybeans , crop yield , crop prices , continuous cropping , crop rotation , Zea mays , Glycine max , crop residues , crop residue management , nutrient management , fertilizer application , application rate , application timing , input costs , pest management , crop acreage , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2007

2. DAYCENT National-Scale Simulations of Nitrous Oxide Emissions from Cropped Soils in the United States

Description:: Includes references
Author:: Del Grosso, S.J. , Parton, W.J. , Mosier, A.R. , Walsh, M.K. , Ojima, D.S. , Thornton, P.E.
Subject:: greenhouse gases , nitrous oxide , gas emissions , climate change , soil nutrient dynamics , agricultural soils , simulation models , cropping systems , soil organic matter , soil texture , environmental factors , crop yield , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2006

3. 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

4. Grass-based farming systems: soil conservation and environmental quality

Description:: Includes references
Author:: Singer, Jeremy W. , Franzluebbers, Alan J. , Karlen, Douglas L.
Subject:: field crops , crop production , land use change , grasses , forage grasses , crop yield , farming systems , cropping systems , crop rotation , sustainable agriculture , Conservation Reserve Program , forage legumes , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009