SYMPOSIUM PAPERS:

M. A. Liebig, D. L. Tanaka, J. M. Krupinsky, S. D. Merrill, and J. D. Hanson

Dynamic Cropping Systems: Contributions to Improve Agroecosystem Sustainability
Published online 5 June 2007; doi:10.2134/agronj2006.0131
Agron J 2007 99: 899-903. [Abstract] [Full Text] [PDF]  

D. L. Tanaka, J. M. Krupinsky, S. D. Merrill, M. A. Liebig, and J. D. Hanson

Dynamic Cropping Systems for Sustainable Crop Production in the Northern Great Plains
Published online 5 June 2007; doi:10.2134/agronj2006.0132
Agron J 2007 99: 904-911. [Abstract] [Full Text] [Figures Only] [PDF]  

Joseph M. Krupinsky, Donald L. Tanaka, Steven D. Merrill, Mark A. Liebig, Michael T. Lares, and Jonathan D. Hanson

Crop Sequence Effects on Leaf Spot Diseases of No-Till Spring Wheat
Published online 5 June 2007; doi:10.2134/agronj2006.0130
Agron J 2007 99: 912-920. [Abstract] [Full Text] [Figures Only] [PDF]  

Joseph M. Krupinsky, Steven D. Merrill, Donald L. Tanaka, Mark A. Liebig, Michael T. Lares, and Jonathan D. Hanson

Crop Residue Coverage of Soil Influenced by Crop Sequence in a No-Till System
Published online 5 June 2007; doi:10.2134/agronj2006.0129
Agron J 2007 99: 921-930. [Abstract] [Full Text] [Figures Only] [PDF]  

Stephen D. Merrill, Donald L. Tanaka, Joseph M. Krupinsky, Mark A. Liebig, and Jonathan D. Hanson

Soil Water Depletion and Recharge under Ten Crop Species and Applications to the Principles of Dynamic Cropping Systems
Published online 5 June 2007; doi:10.2134/agronj2006.0134
Agron J 2007 99: 931-938. [Abstract] [Full Text] [Figures Only] [PDF]  

J. D. Hanson, M. A. Liebig, S. D. Merrill, D. L. Tanaka, J. M. Krupinsky, and D. E. Stott

Dynamic Cropping Systems: Increasing Adaptability Amid an Uncertain Future
Published online 5 June 2007; doi:10.2134/agronj2006.0133
Agron J 2007 99: 939-943. [Abstract] [Full Text] [Figures Only] [PDF]  

FORAGES:

V. Nayigihugu, A. D. Schleicher, D. W. Koch, L. J. Held, J. W. Flake, and B. W. Hess

Beef Cattle Production, Nutritional Quality, and Economics of Windrowed Forage vs. Baled Hay During Winter
Published online 5 June 2007; doi:10.2134/agronj2006.0023
Agron J 2007 99: 944-951. [Abstract] [Full Text] [Figures Only] [PDF]  

TILLAGE:

Jeffrey A. Vetsch, Gyles W. Randall, and John A. Lamb

Corn and Soybean Production as Affected by Tillage Systems
Published online 5 June 2007; doi:10.2134/agronj2006.0149
Agron J 2007 99: 952-959. [Abstract] [Full Text] [Figures Only] [PDF]  

J. P. Garcia, C. S. Wortmann, M. Mamo, R. Drijber, and D. Tarkalson

One-Time Tillage of No-Till: Effects on Nutrients, Mycorrhizae, and Phosphorus Uptake
Published online 26 June 2007; doi:10.2134/agronj2006.0261
Agron J 2007 99: 1093-1103. [Abstract] [Full Text] [Figures Only] [PDF]  

J. A. Quincke, C. S. Wortmann, M. Mamo, T. Franti, R. A. Drijber, and J. P. García

One-Time Tillage of No-Till Systems: Soil Physical Properties, Phosphorus Runoff, and Crop Yield
Published online 26 June 2007; doi:10.2134/agronj2006.0321
Agron J 2007 99: 1104-1110. [Abstract] [Full Text] [Figures Only] [PDF]  

ORGANIC PRODUCTION:

Holger Kirchmann, Lars Bergström, Thomas Kätterer, Lennart Mattsson, and Sven Gesslein

Comparison of Long-Term Organic and Conventional Crop–Livestock Systems on a Previously Nutrient-Depleted Soil in Sweden
Published online 5 June 2007; doi:10.2134/agronj2006.0061
Agron J 2007 99: 960-972. [Abstract] [Full Text] [Figures Only] [PDF]  

FERTILIZER MANAGEMENT:

J. F. Herencia, J. C. Ruiz-Porras, S. Melero, P. A. Garcia-Galavis, E. Morillo, and C. Maqueda

Comparison between Organic and Mineral Fertilization for Soil Fertility Levels, Crop Macronutrient Concentrations, and Yield
Published online 5 June 2007; doi:10.2134/agronj2006.0168
Agron J 2007 99: 973-983. [Abstract] [Full Text] [Figures Only] [PDF]  

CORN:

Tomás Sarlangue, Fernando H. Andrade, Pablo A. Calviño, and Larry C. Purcell

Why Do Maize Hybrids Respond Differently to Variations in Plant Density?
Published online 5 June 2007; doi:10.2134/agronj2006.0205
Agron J 2007 99: 984-991. [Abstract] [Full Text] [Figures Only] [PDF]  

Pedro R. Capristo, Roberto H. Rizzalli, and Fernando H. Andrade

Ecophysiological Yield Components of Maize Hybrids with Contrasting Maturity
Published online 26 June 2007; doi:10.2134/agronj2006.0360
Agron J 2007 99: 1111-1118. [Abstract] [Full Text] [Figures Only] [PDF]  

SEEDS:

Clinton C. Shock, Erik B. G. Feibert, Lamont D. Saunders, and Jim Klauzer

Deficit Irrigation for Optimum Alfalfa Seed Yield and Quality
Published online 5 June 2007; doi:10.2134/agronj2006.0226
Agron J 2007 99: 992-998. [Abstract] [Full Text] [Figures Only] [PDF]  

PHOSPHORUS MANAGEMENT:

H. Tewolde, K. R. Sistani, D. E. Rowe, and A. Adeli

Phosphorus Extraction by Cotton Fertilized with Broiler Litter
Published online 5 June 2007; doi:10.2134/agronj2006.0237
Agron J 2007 99: 999-1008. [Abstract] [Full Text] [Figures Only] [PDF]  

WHEAT:

K. W. Kelley and D. W. Sweeney

Placement of Preplant Liquid Nitrogen and Phosphorus Fertilizer and Nitrogen Rate Affects No-Till Wheat Following Different Summer Crops
Published online 5 June 2007; doi:10.2134/agronj2006.0240
Agron J 2007 99: 1009-1017. [Abstract] [Full Text] [Figures Only] [PDF]  

SOYBEAN:

John V. Wiersma

Iron Acquisition of Three Soybean Varieties Grown at Five Seeding Densities and Five Rates of Fe–EDDHA
Published online 5 June 2007; doi:10.2134/agronj2006.0271
Agron J 2007 99: 1018-1028. [Abstract] [Full Text] [Figures Only] [PDF]  

SOFTWARE:

Weikai Yan and Nicholas A. Tinker

DUDE: A User-Friendly Crop Information System
Published online 5 June 2007; doi:10.2134/agronj2006.0280
Agron J 2007 99: 1029-1033. [Abstract] [Full Text] [Figures Only] [PDF]  

NITROGEN MANAGEMENT:

J. A. Hawkins, J. E. Sawyer, D. W. Barker, and J. P. Lundvall

Using Relative Chlorophyll Meter Values to Determine Nitrogen Application Rates for Corn
Published online 5 June 2007; doi:10.2134/agronj2006.0309
Agron J 2007 99: 1034-1040. [Abstract] [Full Text] [Figures Only] [PDF]  

Shigeru Takahashi, Muhuddin R. Anwar, and Sharon G. de Vera

Effects of Compost and Nitrogen Fertilizer on Wheat Nitrogen Use in Japanese Soils
Published online 26 June 2007; doi:10.2134/agronj2006.0064
Agron J 2007 99: 1151-1157. [Abstract] [Full Text] [Figures Only] [PDF]  

WASTE MANAGEMENT:

Anastasios S. Lithourgidis, Theodora Matsi, Nikolaos Barbayiannis, and Christos A. Dordas

Effect of Liquid Cattle Manure on Corn Yield, Composition, and Soil Properties
Published online 5 June 2007; doi:10.2134/agronj2006.0332
Agron J 2007 99: 1041-1047. [Abstract] [Full Text] [Figures Only] [PDF]  

FORUM:

Peter M. Kyveryga, Alfred M. Blackmer, and Thomas F. Morris

Disaggregating Model Bias and Variability when Calculating Economic Optimum Rates of Nitrogen Fertilization for Corn
Published online 5 June 2007; doi:10.2134/agronj2006.0339
Agron J 2007 99: 1048-1056. [Abstract] [Full Text] [Figures Only] [PDF]  

Peter M. Kyveryga, Alfred M. Blackmer, and Thomas F. Morris

Alternative Benchmarks for Economically Optimal Rates of Nitrogen Fertilization for Corn
Published online 5 June 2007; doi:10.2134/agronj2006.0340
Agron J 2007 99: 1057-1065. [Abstract] [Full Text] [Figures Only] [PDF]  

Neil Hansen, Sarah Ward, Raj Khosla, Jack Fenwick, and Bill Moore

What Does Undergraduate Enrollment in Soil and Crop Sciences Mean for the Future of Agronomy?
Published online 27 June 2007; doi:10.2134/agronj2006.0318
Agron J 2007 99: 1169-1174. [Abstract] [Full Text] [Figures Only] [PDF]  

WEED MANAGEMENT:

Martin M. Williams, II and John L. Lindquist

Influence of Planting Date and Weed Interference on Sweet Corn Growth and Development
Published online 5 June 2007; doi:10.2134/agronj2007.0009
Agron J 2007 99: 1066-1072. [Abstract] [Full Text] [Figures Only] [PDF]  

ECONOMIC ANALYSIS:

S. K. Jalota, A. Sood, J. D. Vitale, and R. Srinivasan

Simulated Crop Yields Response to Irrigation Water and Economic Analysis: Increasing Irrigated Water Use Efficiency in the Indian Punjab
Published online 26 June 2007; doi:10.2134/agronj2006.0054
Agron J 2007 99: 1073-1084. [Abstract] [Full Text] [Figures Only] [PDF]  

Rebecca L. Cochran, Roland K. Roberts, James A. Larson, and Donald D. Tyler

Cotton Profitability with Alternative Lime Application Rates, Cover Crops, Nitrogen Rates, and Tillage Methods
Published online 26 June 2007; doi:10.2134/agronj2006.0161
Agron J 2007 99: 1085-1092. [Abstract] [Full Text] [PDF]  

MANURE:

Esteban R. Loria, John E. Sawyer, Daniel W. Barker, John P. Lundvall, and Jeffery C. Lorimor

Use of Anaerobically Digested Swine Manure as a Nitrogen Source in Corn Production
Published online 26 June 2007; doi:10.2134/agronj2006.0251
Agron J 2007 99: 1119-1129. [Abstract] [Full Text] [Figures Only] [PDF]  

COTTON:

Jenny Clement-Bailey and C. Owen Gwathmey

Potassium Effects on Partitioning, Yield, and Earliness of Contrasting Cotton Cultivars
Published online 26 June 2007; doi:10.2134/agronj2006.0288
Agron J 2007 99: 1130-1136. [Abstract] [Full Text] [Figures Only] [PDF]  

ROOTS:

C. N. Egesi, P. Ilona, F. O. Ogbe, M. Akoroda, and A. Dixon

Genetic Variation and Genotype x Environment Interaction for Yield and Other Agronomic Traits in Cassava in Nigeria
Published online 26 June 2007; doi:10.2134/agronj2006.0291
Agron J 2007 99: 1137-1142. [Abstract] [Full Text] [Figures Only] [PDF]  

RICE:

X. Y. Sha and S. D. Linscombe

Planting Date Affects Grain and Milling Yields of Water-Seeded Clearfield Rice
Published online 26 June 2007; doi:10.2134/agronj2006.0298
Agron J 2007 99: 1143-1150. [Abstract] [Full Text] [Figures Only] [PDF]  

SOIL QUALITY & FERTILITY:

J. A. Quincke, C. S. Wortmann, M. Mamo, T. Franti, and R. A. Drijber

Occasional Tillage of No-Till Systems: Carbon Dioxide Flux and Changes in Total and Labile Soil Organic Carbon
Published online 26 June 2007; doi:10.2134/agronj2006.0317
Agron J 2007 99: 1158-1168. [Abstract] [Full Text] [Figures Only] [PDF]  

INTERCROPPING:

J. W. Singer, T. J. Sauer, B. C. Blaser, and D. W. Meek

Radiation Use Efficiency in Dual Winter Cereal–Forage Production Systems
Published online 26 June 2007; doi:10.2134/agronj2007.0033
Agron J 2007 99: 1175-1179. [Abstract] [Full Text] [Figures Only] [PDF]  

CENTENNIAL PAPERS:

James B Beard and Peter O. Cookingham

William J. Beal—Pioneer Applied Botanical Scientist and Research Society Builder
Published online 26 June 2007; doi:10.2134/agronj2007.0011c
Agron J 2007 99: 1180-1187. [Abstract] [Full Text] [Figures Only] [PDF]  

LETTERS TO THE EDITOR:

Klaas Metselaar and Thomas R. Sinclair

Comment on "Theoretical Analysis of Soil and Plant Traits Influencing Daily Plant Water Flux on Drying Soils" by T.R. Sinclair. Agron. J. 97:1148–1152 (2005)
Published online 26 June 2007; doi:10.2134/agronj2007.0122L
Agron J 2007 99: 1188-1189. [Full Text] [Figures Only] [PDF]  

ERRATA:

T.R. Sinclair

Theoretical analysis of soil and plant traits influencing daily plant water flux on drying soils
Published online 26 June 2007; doi:10.2134/agronj2007.0122er
Agron J 2007 99: 1190. [Full Text] [PDF]  

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