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Year 2004 Remove constraint 2004: 2004 Subjects corn Remove constraint corn: corn Subjects soil fertility Remove constraint soil fertility: soil fertility
Displaying items 1 - 10 of 12 start over

1. Agroecosystem performance during transition to certified organic grain production

Description:
Includes references
Author:
Delate, K. , Cambardella, C.A.
Subject:
organic production , Zea mays , corn , Glycine max , soybeans , Avena sativa , oats , Medicago sativa , alfalfa , crop rotation , grain yield , organic certification , cover crops , composts , soil amendments , insect pests , Ostrinia nubilalis , Cerotoma trifurcata , weeds , plant density , soil fertility , costs and returns , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

2. Agronomic responses of corn hybrids from different eras to deficit and adequate levels of water and nitrogen

Description:
Includes references
Author:
O'Neill, P.M. , Shanahan, J.F. , Schepers, J.S. , Caldwell, B.
Subject:
Zea mays , corn , hybrids , grain yield , agronomic traits , plant-water relations , water stress , soil water deficit , nitrogen , soil fertility , nutrient availability , genotype-environment interaction , nutrition-genotype interaction , Nebraska
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

3. Challenges of managing liquid swine manure

Description:
Includes references
Author:
Karlen, D.L. , Cambardella, C.A. , Kanwar, R.S.
Subject:
pig manure , liquid manure , animal manure management , land application , application rate , phosphorus , potassium , nitrogen , soil fertility , leaching , nutrient balance , tile drainage , crop rotation , Zea mays , corn , Glycine max , soybeans , soil nutrients , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

4. Defining yield goals and management zones to minimize yield and nitrogen and phosphorus fertilizer recommendation errors

Description:
Includes references
Author:
Chang, J.Y. , Clay, D.E. , Carlson, C.G. , Reese, C.L. , Clay, S.A. , Ellsbury, M.M.
Subject:
precision agriculture , Glycine max , soybeans , Zea mays , corn , crop rotation , grain yield , geographic information systems , fields , agricultural soils , electrical conductivity , soil fertility , fertilizer requirements , phosphorus , phosphorus fertilizers , nitrogen , nitrogen fertilizers , fertilizer application , topography , landscapes , South Dakota
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

5. Evaluating soil color with farmer input and apparent soil electrical conductivity for management zone delineation

Description:
Includes references
Author:
Fleming, K.L. , Heermann, D.F. , Westfall, D.G.
Subject:
soil color , agricultural soils , electrical conductivity , surface layers , fields , spatial variation , fertilizer application , variable rate application , farmers' attitudes , agricultural management , crop production , Zea mays , corn , grain yield , soil fertility , soil texture , Colorado
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

6. Evaluating the spatial and temporal dynamics of farm and field phosphorus and potassium balances on a mixed crop and livestock farm

Description:
Includes references
Author:
Saporito, L.S. , Lanyon, L.E.
Subject:
soil nutrient balance , soil nutrients , soil fertility , phosphorus , potassium , spatial variation , temporal variation , input output analysis , crop production , dairy farming , farms , Zea mays , corn , Medicago sativa , Phleum pratense , Phalaris arundinacea , agricultural soils , Pennsylvania
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

7. Midseason nitrogen fertility management for corn based on weather and yield prediction

Description:
Includes references
Author:
Derby, N.E. , Casey, F.X.M. , Kinghton, R.E. , Steele, D.D.
Subject:
Zea mays , corn , varieties , hybrids , growing season , grain yield , weather , nitrogen fertilizers , fertilizer application , soil fertility , nitrates , prediction , regression analysis , statistical models , evapotranspiration , continuous cropping , sprinkler irrigation , sandy loam soils , Hapludolls , North Dakota
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

8. Nitrogen fertilization and rotation effects on no-till dryland wheat production

Description:
Includes references
Author:
Halvorson, A.D. , Nielsen, D.C. , Reule, C.A.
Subject:
Triticum aestivum , winter wheat , crop rotation , Zea mays , corn , Sorghum bicolor , grain sorghum , fallow , dryland farming , nitrogen fertilizers , fertilizer application , application rate , grain yield , no-tillage , nutrient use efficiency , soil fertility , nitrate nitrogen , loam soils , Colorado
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

9. Relationship of corn and soybean yield to soil and terrain properties

Description:
Includes references
Author:
Kaspar, T.C. , Pulido, D.J. , Fenton, T.E. , Colvin, T.S. , Karlen, D.L. , Jaynes, D.B. , Meek, D.W.
Subject:
Zea mays , corn , Glycine max , soybeans , grain yield , agricultural soils , soil chemical properties , soil physical properties , soil fertility , spatial variation , topography , fields , landscapes , Iowa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

10. Relationships between soil bulk electrical conductivity and the principal component analysis of topography and soil fertility values

Description:
Includes references
Author:
Officer, S.J. , Kravchenko, A. , Bollero, G.A. , Sudduth, K.A. , Kitchen, N.R. , Wiebold, W.J. , Palm, H.L. , Bullock, D.G.
Subject:
soil fertility , soil physical properties , electrical conductivity , bulk density , principal component analysis , topography , Zea mays , corn , Glycine max , soybeans , Illinois , Missouri
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004