2002--2004 Pregress Reports
1. Soil Organic C Maintenance in a Corn (Zea mays L) and Soybean (Glycine max L.) as Influenced by Elevation Zone.
Authors: Clay, D.E., C.G. Carlson, S.A. Clay, J. Chang, and D.D. Malo
2. Corn (Zea mays L.) Yield Prediction Using Multispectral and Multidate Reflectance
Authors: Jiyul Chang, David E. Clay, Kevin Dalsted, Sharon Clay, and Mary O’Neill,
3. CLOUDS INFLUENCE PRECISION AND ACCURACY OF GROUND-BASED SPECTRORADIOMETERS
Authors: Jiyul Chang, Sharon A. Clay, David E. Clay, David Aaron, Dennis Helder, and Kevin Dalsted.
4. Different Techniques to Identify Management Zones Impact N and P Sampling Variability.
Authors: Jiyul Chang, David E. Clay, Charles G. Carlson, Sharon A. Clay, Douglas D. Malo, Robert Berg, J. Kleinjan, and W. Wiebold
5. Detecting Weed-Free and Weed-Infested Areas of a Soybean (Glycine max) Field Using Near-Infrared Spectral Data
Authors: Jiyul Chang, Sharon A. Clay, and David E. Clay
6. THE APPARENT EFFECT OF WHOLE FIELD CORN MANAGEMENT ON SOIL AND CROP REFLECTANCE
Authors: Clay, D.E., P. Danielson, C. Reese1, K. Dalsted, and S.A. Clay
7. Spatial distribution, temporal stability, and yield loss estimates for annual grasses and common ragweed in corn/soybean production field over nine years
Authors: Sharon A. Clay, Bruce Kreutner, David E. Clay, Cheryl Reese, Jonathan Kleinjan, Frank Forcella
8. A Lesson Learned in South Dakota About Identifying Nutrient Management Zones.
Authors: D.E. Clay, C.G. Carlson, and J. Chang
9. The Impact of intercropping Annual (variety “Sava”) Snail Medic on Corn Production.
Authors: Smeltekop, H., D.E. Clay, and S.A. Clay
10. Can 13C discrimination in corn (Zea mays) grain be used to characterize interplant competition for water and nitrogen?
Authors: D.E. Clay, S.A. Clay, D.J. Lyon, J.M. Blumenthal
11. Collecting Representative Soil Samples for N and P Fertilizer Recommendations
Authors: D. E. Clay, N. Kitchen, C.G. Carlson, J.L. Kleinjan, and W.A. Tjentland |