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G. V. Johnson

Optical Sensor‐Based Algorithm for Crop Nitrogen Fertilization
2005 · W. R. Raun, J. B. Solie, et al. · Communications in Soil Science and Plant Analysis · 343
Micronutrient Soil Tests
1991 · J. T. Sims, G. V. Johnson · Soil Science Society of America book series · 290
Nitrogen Fertilization Optimization Algorithm Based on In-season Estimates of Yield and Plant Nitrogen Uptake
2001 · E. V. Lukina, K. W. Freeman, et al. · Journal of Plant Nutrition · 188
Nitrogen Response Index as a Guide to Fertilizer Management
2003 · G. V. Johnson, W. R. Raun · Journal of Plant Nutrition · 161
Switchgrass Response to Harvest Frequency and Time and Rate of Applied Nitrogen
2004 · W. E. Thomason, W. R. Raun, et al. · Journal of Plant Nutrition · 159
Evaluation of Green, Red, and Near Infrared Bands for Predicting Winter Wheat Biomass, Nitrogen Uptake, and Final Grain Yield
2004 · S. M. Moges, W. R. Raun, et al. · Journal of Plant Nutrition · 158
Influence of Buffers on Pesticide and Nutrient Runoff from Bermudagrass Turf
1997 · J. T. Cole, J. H. Baird, et al. · Journal of Environmental Quality · 116
Effect of long-term N fertilization on soil organic C and total N in continuous wheat under conventional tillage in Oklahoma
1998 · W.R Raun, G.V Johnson, et al. · Soil and Tillage Research · 94
Microvariability in Soil Test, Plant Nutrient, and Yield Parameters in Bermudagrass
1998 · W. R. Raun, G. V. Johnson, et al. · Soil Science Society of America Journal · 88
Bray/Kurtz, Mehlich III, AB/D and ammonium acetate extractions of P, K and MG in four oklahoma soils
1984 · E. A. Hanlon, G. V. Johnson · Communications in Soil Science and Plant Analysis · 88
Optical Sensing of Turfgrass Chlorophyll Content and Tissue Nitrogen
2004 · G.E. Bell, B.M. Howell, et al. · HortScience · 85
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Late-season Prediction Of Wheat Grain Yield And Grain Protein
2003 · K. W. Freeman, W. R. Raun, et al. · Communications in Soil Science and Plant Analysis · 78
Growth Stage, Development, and Spatial Variability in Corn Evaluated Using Optical Sensor Readings**Contribution from the Oklahoma Agricultural Experiment Station and the International Maize and Wheat Improvement Center (CIMMYT).
2005 · W. R. Raun, J. B. Solie, et al. · Journal of Plant Nutrition · 74
Effects of dormant- vs. growing-season fire in shortgrass steppe: Biological soil crust and perennial grass responses
2006 · P.L. Ford, G.V. Johnson · Journal of Arid Environments · 64
Nitrogen Balance in the Magruder Plots Following 109 Years in Continuous Winter Wheat
2003 · R. L. Davis, J. J. Patton, et al. · Journal of Plant Nutrition · 56
The role of endomycorrhizal fungi in iron uptake by Hilaria jamesii
1986 · W. A. Cress, G. V. Johnson, et al. · Journal of Plant Nutrition · 49
Detection of nitrogen and phosphorus nutrient status in winter wheat using spectral radiance
1998 · H. Sembiring, W.R. Raun, et al. · Journal of Plant Nutrition · 44
Production System Techniques to Increase Nitrogen Use Efficiency in Winter Wheat*
2002 · W. E. Thomason, W. R. Raun, et al. · Journal of Plant Nutrition · 42
Relationship Between Coefficient of Variation Measured by Spectral Reflectance and Plant Density at Early Growth Stages in Winter Wheat
2006 · D. B. Arnall, W. R. Raun, et al. · Journal of Plant Nutrition · 40
Nitrate Leaching in Continuous Winter Wheat: Use of a Soil‐Plant Buffering Concept to Account for Fertilizer Nitrogen
1995 · G. V. Johnson, W. R. Raun · jpa · 38
Alfalfa Yield Response to Nitrogen Applied After Each Cutting
1999 · W. R. Raun, G. V. Johnson, et al. · Soil Science Society of America Journal · 36
Effect of row spacing, growth stage, and nitrogen rate on spectral irradiance in winter wheat
2000 · E. V. Lukina, W. R. Raun, et al. · Journal of Plant Nutrition · 35
The effect of azospirilluh brasilense on iron absorption and translocation by sorghum
1986 · L.L. Barton, G.V. Johnson, et al. · Journal of Plant Nutrition · 35
Indirect measures of plant nutrients
1998 · W. R. Raun, G. V. Johnson, et al. · Communications in Soil Science and Plant Analysis · 34
Fertilizer Nitrogen Recovery in Long‐Term Continuous Winter Wheat
1999 · W. R. Raun, G. V. Johnson, et al. · Soil Science Society of America Journal · 32
Works count: 76
Citation count: 2,925
H-index: 27
I10-index: 44
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