|
Nitrogen Use Efficiency Journal Publications
(on-line), and Precision Agriculture |
Journal Articles on-line |
|
2008 |
Aboveground
nitrogen accumulation as a function of time in corn and winter wheat.
J. Plant Nutr. |
|
2008 |
Determination of optimum resolution for predicting corn grain yield
using sensor measurements. Arch. Agron. Soil Sci. |
|
2008 |
Changes in response
indices as a function of time in winter wheat. Agron J. |
|
2008 |
Effect of delayed emergence on corn grain yields. J. Plant Nutr. |
|
2007 |
Potential Use of Spectral
Reflectance Indices as a Selection Tool for Grain Yield in Winter Wheat
under Great Plains Conditions. Crop Sci. 2007 47: 1426-1440. |
|
2007 |
Genetic Analysis of Indirect
Selection for Winter Wheat Grain Yield Using Spectral Reflectance
Indices
Crop Sci. 2007 47: 1416-1425. |
|
2007 |
Weather, Fertilizer,
Previous Year Yield, and Fertilizer Levels Affect Ensuing Year
Fertilizer Response of Wheat Agron. J. 2007 99: 1607-1614. (pdf) |
|
2007 |
Long-Term
Effects of Nitrogen Management Practices on Grain Yield, Nitrogen Uptake
and Efficiency in Irrigated Corn (Zea mays L.).
J. Plant Nutr. 30:2021-2036. |
|
2007 |
Relationship between Nitrogen Use
Efficiency and Response Index in Winter Wheat (J. Plant Nutr.) |
|
2007 |
Bed and flat planted
dryland winter wheat as influenced by row configuration. Archives of
Agronomy and Soil Science. 53:293-304. (pdf) |
|
2007 |
Cotton Lint Yield and Quality
as Affected by Cultivar and Long-Term Applications of N, P, and K
Fertilizers (J. Cotton Science, 11:12-19). (pdf) |
|
2007 |
Winter Wheat Grain Yield and
Grain Nitrogen as Influenced by Bed and Conventional Planting Systems.
(J. Plant Nutr. 30:611-622). (pdf)
(html) |
|
2007 |
Reduced nitrogen and improved farm
income for irrigated spring wheat in the Yaqui Valley, Mexico, using
sensor based nitrogen management. (J. Agrc. Sci. 145:1-8) |
|
2007 |
Expression
of spatial variability in corn (Zea mays L.) as influenced by growth
stage using optical sensor measurements (Agron J. 99: 384-389) (pdf) |
|
2007 |
By-Plant Prediction of Corn Forage Biomass and Nitrogen Uptake at
Various Growth Stages Using Remote Sensing and Plant Height Measures
(Agron J. 99:530-536) (pdf) |
|
2007 |
The Magruder Plots,
Untangling the Puzzle. (Agron J. 1191-1198) |
|
2007 |
Use of In-Season Reflectance for Predicting Yield Potential in
Bermudagrass Commun. Soil Sci. Plant Anal. 38:1519-1531. (pdf) |
|
2007 |
Analysis of Yield
Variability in Winter Wheat Due to Temporal Variability, and Nitrogen
and Phosphorus Fertilization. Arch. Agron. Soil Sci. 53:435-442. (pdf) |
|
2007 |
Responsive in-season nitrogen
management for cereals. Computers and Electronics in Agric.
61:51-62. |
|
2007 |
Determination of Optimum
Rate and Growth Stage for Foliar Applied Phosphorus in Corn.
Commun. Soil Sci. Plant Anal. |
|
2006 |
Spectral Reflectance to Estimate
Genetic Variation for In-Season Biomass, Leaf Chlorophyll, and Canopy
Temperature in Wheat. Crop Sci. 2006 46: 1046-1057. |
|
2006 |
Spectral Reflectance Indices as a
Potential Indirect Selection Criteria for Wheat Yield under Irrigation
Crop Sci. 2006 46: 578-588. |
|
2006 |
Expression of Yield
Potential of Wheat through Management of Nitrogen Fertilizer (J. of
Agric. Sciences) |
|
2006 |
Bed and Flat
Planted Dryland Winter Wheat as Influenced by Row Configuration
(Archives of Agronomy and Soil Sciences). |
|
2006 |
In-season prediction of
corn grain yield potential using normalized difference vegetation index
(Agron. J. 98:1488-1494)(pdf) |
|
2006 |
In-season estimation of
grain sorghum yield potential using a hand-held optical sensor. (J.
Plant Nutr.) |
|
2006 |
Spectral reflectance
indices as a potential indirect selection criteria for wheat yield under
irrigation. Crop Sci. 46:578-588. (pdf) |
|
2006 |
Long-Term Effects of Nitrogen
Management Practices on Grain Yield, Nitrogen Uptake and Efficiency in
Irrigated Corn (Zea mays L.)
Crop Sci. |
|
2006 |
Temporal Variability Overrides Nitrogen and Phosphorus Nutrient Response in Winter Wheat Agron. J.
|
|
2006 |
Mid-Season Prediction of
Wheat Grain Yield Potential Using Plant, Soil, and Sensor Measurements.
J. Plant Nutr. 29:873-897 (pdf) |
|
2006 |
Mid-Season Recovery to Nitrogen
Stress in Winter Wheat J. Plant Nutr. 29:727-745 (pdf) |
|
2006 |
Maximum benefit of a precise
nitrogen application system for wheat. Precision Agric. 7:1-12. |
|
2006 |
Relationship Between
Coefficient of Variation Measured by Spectral Reflectance and Plant
Density at Early Growth Stages J. Plant Nutr. 29:1983-1997 (pdf) |
|
2006 |
Response of Winter Wheat to
Chloride Fertilization in Sandy Loam Soils. Commun. Soil Sci.
Plant Anal. 37:1947-1955. (pdf) |
|
2005 |
Effect of Tillage and
Anhydrous Ammonia Application on Nitrogen Use Efficiency of Hard Red
Winter Wheat (Accepted, J. of Sustainable Agriculture) |
|
2005 |
Plant to Plant
Variability in Corn Production ( Agron. J. 97:1603-1611) (pdf) |
|
2005 |
Effect of Foliar Application of Phosphorus on Winter
Wheat Grain Yield, Phosphorus Uptake and Use Efficiency J. Plant
Nutr. 29: 2147 - 2163 (pdf) |
|
2005 |
Relationship Between Response
Indices Measured In-Season and at Harvest in Winter Wheat. J.
Plant Nutr. 28:221-235. |
|
2005 |
Forage and Grain Yield Response to Applied Sulfur in Winter Wheat as
Influenced by Source and Rate. J. Plant Nutr. 28:1541-1553. |
|
2005 |
Growth Stage, Development, and Spatial Variability in Corn Evaluated Using
Optical Sensor Readings J. Plant Nutr. 28:173-182 (pdf) |
|
2005 |
Optical Sensor Based Algorithm
for Crop Nitrogen Fertilization Commun. Soil Sci. Plant Anal.
36:2759-2781 (pdf) |
|
2004 |
Indirect Estimates of Soil
Electrical Conductivity for Improved Prediction of Wheat Grain Yield.
Commun. Soil Sci. Plan Anal. 35: 2639-2653 |
|
2004 |
Evaluation of Green, Red, and Near
Infrared Bands for Predicting Winter Wheat Biomass, Nitrogen Uptake and
Final Grain Yield J. Plant Nutr. 27:1431-1441. |
|
2004 |
Automated
Calibration Stamp Technology for Improved In-Season Nitrogen Fertilization
Agron J. 97:338-342. (pdf) |
|
2004 |
By-Plant Precision Sensing
for Variable Nitrogen Rate Application in Corn Precision
Agriculture Conference, St Paul Minnesota, July 2004 |
|
2004 |
Increasing Cereal Nitrogen Use Efficiency Using Sensor Based Technology AAPRESID Presentation,
Argentina, Aug 2004 (Pictures On-Line of Agustin Bianchini and Jerry
Hatfield)
PPT presentation
Spanish
PPT presentation
English
Video Presentation from
Oral Presentation in Rosario, Argentina |
|
2003 |
Nitrogen Balance in the Magruder Plots Following 109 Years in Continuous
Winter Wheat J. Plant Nutr. 26:1561-1580.
(pdf) |
|
2003 |
Late-season prediction of wheat grain yield and grain protein. Commun.
Soil Sci. Plant Anal. 34:1837-1852. |
|
2003 |
Nitrogen Response Index as a Guide to
Fertilizer Management J. Plant Nutr.
(pdf) 26:249-262. |
|
2003 |
Identifying an In-Season Response Index and the Potential to Increase
Wheat Yield with Nitrogen (pdf)
Agron J. 95:347-351 |
|
2003 |
Canopy reduction and legume interseeding in irrigated continuous corn. J.
Plant. Nutr. 26:1335-1343. |
|
2002 |
Influence of late-season foliar
nitrogen applications on yield and grain nitrogen in winter wheat.
Agron. J. 94:429-434. (pdf) |
|
2002 |
Within Field Variability in Wheat Grain Yields Over Nine Years in
Oklahoma. J. Plant Nutr. 25:2655 |
|
2002 |
Relationship Between Ammonium and Nitrate in Wheat Plant Tissue and
Estimated Nitrogen Loss. J. Plant Nutr. 25:1429-1442 |
|
2002 |
Improving
Nitrogen Use Efficiency in Cereal Grain Production with Optical Sensing
and Variable Rate Application, Agron J. 94:815-820.
(pdf) |
|
2002 |
Production System Techniques to Increase Nitrogen Use Efficiency in Winter
Wheat J Plant Nut. 25: 2261-2283. |
|
2002 |
Real-Time Sensing and N
Fertilization with a Field Scale GreenSeeker Applicator |
|
2001 |
Estimated land area increase
of agricultural ecosystems to sequester excess atmospheric carbon
dioxide. Commun. Soil Sci. Plant Anal. 32:1803-1812. (pdf) |
|
2001 |
Optimum
Field Element Size for Maximum Yields in Winter Wheat Using Variable
Nitrogen Rates J.
Plant Nutr. 24:313-325 (pdf) |
|
2001 |
Nitrogen Fertilization Optimization Algorithm
Based on In-Season Estimates of Yield and Plant Nitrogen Uptake
J.
Plant Nutr. 24:885-898 |
|
2001 |
Effect of Chloride
Fertilizers and Lime on Wheat Grain Yield and Take-All Disease J.
Plant Nutr. 24:683-692 |
|
2000 |
Increased plant N loss with increasing nitrogen applied in winter wheat
observed with 15N. J. Plant Nutr. 23:219-230. |
|
2000 |
Winter wheat fertilizer nitrogen use
efficiency in grain and forage production systems. J. Plant Nutr.
23:1505-1516. |
|
2000 |
Effect of Growth Stage and
Variety on Spectral Radiance in Winter Wheat J. Plant Nutr.
23:141-149 |
|
1999 |
Estimating vegetation coverage in wheat using digital images. J. Plant Nutr.
22:341-350. |
|
1999 |
Alfalfa Yield Response to
Nitrogen Applied After Each Cutting. Soil Sci. Soc. Am. J.
63:1237-1243 |
|
1999 |
Improving
Nitrogen Use Efficiency for Cereal Production Agron. J. 91:357-363
(pdf) |
|
1999 |
In-Season
Prediction of Yield Potential in Winter Wheat Better
Crops:
83:(2) 24-25 |
|
1999 |
Submeter Spatial Variability of Selected Soil
and Plant Variables Soil Sci. Soc. Am. J.
63:1724-1733 |
|
1999 |
In-Season
Prediction of Yield Potential Using Wheat Canopy Reflectance, Agron.
J. 93:131-138 |
|
1999 |
Relationship Between Mean
Yield, Coefficient of Variation, Mean Square Error and Plot Size in Wheat
Field Experiments. Commun.
Soil Sci. Plant Anal. 30:1439-1447 |
| 1998 |
Detection of Nitrogen and Phosphorus Nutrient Status in Winter Wheat
Using Spectral Radiance. J. Plant Nutr. 21:1207-1233. |
| 1998 |
Detection of Nitrogen and Phosphorus Nutrient Status in Bermudagrass
Using Spectral Radiance. J. Plant Nutr. 21:1189-1206. |
| 1998 |
Use of Spectral Radiance for Correcting Nitrogen Deficiencies and
Estimating Soil Test Variability in an Established Bermudagrass Pasture.
J. Plant Nutr. 21:2287-2302. |
| 1998 |
Effect of Long-Term N
fertilization on Soil Organic C and total N in continuous Wheat Under
Conventional Tillage in Oklahoma. Soil and Tillage Res.
47:323-330. |
|
1998 |
Micro-variability in soil test,
plant nutrient, and yield parameters in bermudagrass. Soil Sci. Soc.
Am. J. 62:683-690 |
|
1997 |
Indirect
Measures of Plant Nutrients.
Commun.
In Soil Sci. Plant Anal. 29:1571-1581 |
|
1997 |
Effect of nitrogen rate on plant
nitrogen loss in winter wheat varieties. J. of Plant Nutr.
20:389-404. |
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Other Journal Publications |
|
2005 |
Effect of Long-Term Application of Biosolids on Molybdenum Content and Quality
of Winter Wheat Forage. J. Plant Nutr. 28:405-420 (PDF) |
|
2004 |
Switchgrass Response to Harvest Frequency and
Time and Rate of Applied Nitrogen J. Plant Nutr. 27:1199 - 1226 |
|
1998 |
Changing Departmental Names
from Agronomy to Plant, Crop, and Soil Sciences (pdf
version) |
|
1997 |
Seasonal and long-term changes in
nitrate-nitrogen content of well water in Oklahoma. 1997. J.
Environmental Quality, 26:1632-1637. |
|
1993 |
Use of
Stability Analysis for Long-Term Soil Fertility Experiments. Agron J.
85:159-167 |
|
1954 |
A Nutrient Mobility Concept of Soil Plant
Relationships (Roger H. Bray, Univ. of Illinois) |
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