K. W. Freeman

Improving Nitrogen Use Efficiency in Cereal Grain Production with Optical Sensing and Variable Rate Application

W. R. Raun, John B. Solie, Gordon V. Johnson et al. · Agronomy Journal · 2002 · 718 citations · Full text

Precision Agriculture, Engineering, Agricultural Economics +20

Optical Sensor‐Based Algorithm for Crop Nitrogen Fertilization

W. R. Raun, John B. Solie, M. L. Stone et al. · Communications in Soil Science and Plant Analysis · 2005 · 324 citations

In‐Season Prediction of Corn Grain Yield Potential Using Normalized Difference Vegetation Index

R. K. Teal, Brenda Tubaña, K. Girma et al. · Agronomy Journal · 2006 · 317 citations

Precision Agriculture, Engineering, Land Use +16

By‐Plant Prediction of Corn Forage Biomass and Nitrogen Uptake at Various Growth Stages Using Remote Sensing and Plant Height

K. W. Freeman, Kefyalew Girma, D. Brian Arnall et al. · Agronomy Journal · 2007 · 226 citations · Full text

Precision Agriculture, Environmental Monitoring, Engineering +17

NITROGEN FERTILIZATION OPTIMIZATION ALGORITHM BASED ON IN-SEASON ESTIMATES OF YIELD AND PLANT NITROGEN UPTAKE

E. V. Lukina, K. W. Freeman, K. J. Wynn et al. · Journal of Plant Nutrition · 2001 · 181 citations