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Subjects corn Remove constraint corn: corn Subjects equations Remove constraint equations: equations Subjects grain yield Remove constraint grain yield: grain yield
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1. An Active Sensor Algorithm for Corn Nitrogen Recommendations Based on a Chlorophyll Meter Algorithm

Description:
Includes references
Author:
Solari, Fernando , Shanahan, John F. , Ferguson, Richard B. , Adamchuk, Viacheslav I.
Subject:
Zea mays , corn , nitrogen , plant nutrition , nutritional status , canopy , sensors , reflectance , algorithms , chlorophyll , nitrogen fertilizers , fertilizer rates , mathematical models , equations , nitrogen balance , accuracy , model validation , grain yield , irrigated farming
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2010

2. Comparison of estimates of first-year dairy manure nitrogen availability or recovery using nitrogen-15 and other techniques

Description:
Includes references
Author:
Munoz, G.R. , Kelling, K.A. , Powell, J.M. , Speth, P.E.
Subject:
dairy cattle , cattle manure , nitrogen fertilizers , nitrogen , nutrient availability , Zea mays , corn , prediction , methodology , isotope labeling , nutrient uptake , grain yield , application timing , regression analysis , equations , mathematical models , Wisconsin
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

3. Estimated corn yields using either weed cover or rated control after pre-emergence herbicides

Description:
Includes references
Author:
Donald, W.W.
Subject:
Zea mays , corn , grain yield , Amaranthus , vegetation cover , plant density , preemergent weed control , Setaria faberi , annual weeds , herbicide residues , equations , row spacing , spatial distribution , crop-weed competition , Missouri
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

4. Evaluating Multiple Indices from a Canopy Reflectance Sensor to Estimate Corn N Requirements

Description:
Includes references
Author:
Sripada, Ravi P. , Schmidt, John P. , Dellinger, Adam E. , Beegle, Douglas B.
Subject:
Zea mays , corn , nitrogen , plant nutrition , nutrient requirements , canopy , reflectance , remote sensing , nitrogen fertilizers , economic analysis , fertilizer rates , field experimentation , application timing , color , grain yield , mathematical models , equations , Pennsylvania
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2008

5. Inbred-Progeny Selection Is Predicted to Be Inferior to Half-Sib Selection for Three Maize Populations

Description:
Includes references
Author:
Wardyn, Brandon M. , Edwards, Jode W. , Lamkey, Kendall R.
Subject:
Zea mays , corn , inbred lines , artificial selection , selection criteria , progeny , outbred lines , genotype , genetic variation , genetic improvement , equations , mathematical models , genetic variance , height , grain yield
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2009

6. Large-area maize yield forecasting using leaf area index based yield model

Description:
Includes references
Author:
Baez-Gonzalez, A.D. , Kiniry, J.R. , Maas, S.J. , Tiscareno L., M. , Macias C., J. , Mendoza, J.L. , Richardson, C.W. , Salinas, G., J. , Manjarrez, J.R.
Subject:
Zea mays , corn , grain crops , grain yield , crop models , leaf area index , prediction , remote sensing , equations , mathematical models , satellites , Mexico
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

7. Reduction of high soil test phosphorus by corn and soybean varieties

Description:
Includes references
Author:
Eghball, B. , Shanahan, J.F. , Varvel, G.E. , Gilley, J.E.
Subject:
water pollution , Zea mays , corn , hybrids , Glycine max , soybeans , varieties , harvesting , soil nutrients , soil test values , phosphorus , extraction , nutrient uptake , nutrient content , beef cattle , feedlots , cattle manure , composted manure , phosphorus fertilizers , nitrogen fertilizers , fertilizer application , chemical composition , grain yield , residual effects , irrigated conditions , soil depth , equations , Nebraska
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

8. Simulating the fate of water in field soil--crop environment

Description:
Includes references
Author:
Cameira, M.R. , Fernando, R.M. , Ahuja, L. , Pereira, L.
Subject:
Root Zone Water Quality Model , agricultural soils , model validation , evapotranspiration , grain crops , plant growth , equations , mathematical models , silt loam soils , sandy soils , Zea mays , corn , irrigated soils , irrigated farming , grain yield , crop yield , forage crops , plant-water relations , Portugal
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2005

9. Spatial distribution, temporal stability, and yield loss estimates for annual grasses and common ragweed (Ambrosia artimisiifolia) in a corn/soybean production field over nine years

Description:
Includes references
Author:
Clay, S.A. , Kreutner, B. , Clay, D.E. , Reese, C. , Kleinjan, J. , Forcella, F.
Subject:
Zea mays , corn , grain yield , annual weeds , grass weeds , Ambrosia artemisiifolia , broadleaf weeds , spatial distribution , temporal variation , long term experiments , plant density , equations , kriging , spatial data , geostatistics , precision agriculture , South Dakota
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

10. Theoretical Derivation of Stable and Nonisotopic Approaches for Assessing Soil Organic Carbon Turnover

Description:
Includes references
Author:
Clay, D.E. , Carlson, C.G. , Clay, S.A. , Reese, C. , Liu, Z. , Chang, J. , Ellsbury, M.M.
Subject:
soil organic carbon , soil analysis , new methods , stable isotopes , carbon , equations , mathematical models , mineralization , crop residues , Zea mays , corn , Glycine max , soybeans , grain yield , crop yield
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006