CENTENNIAL PAPERS:

Murray H. Milford and E. C. A. Runge

Beachell and Borlaug, Two Giants of the American Society of Agronomy's First Century
Published online 4 April 2007; doi:10.2134/agronj2007.0004
Agron J 2007 99: 595-598. [Abstract] [Full Text] [Figures Only] [PDF]  

CROP ROTATIONS:

Nanga Mady Kaye, Stephen C. Mason, Tomie D. Galusha, and Martha Mamo

Nodulating and Non-Nodulating Soybean Rotation Influence on Soil Nitrate-Nitrogen and Water, and Sorghum Yield
Published online 4 April 2007; doi:10.2134/agronj2005.0290
Agron J 2007 99: 599-606. [Abstract] [Full Text] [PDF]  

J. D. Booker, K. F. Bronson, C. L. Trostle, J. W. Keeling, and A. Malapati

Nitrogen and Phosphorus Fertilizer and Residual Response in Cotton–Sorghum and Cotton–Cotton Sequences
Published online 4 April 2007; doi:10.2134/agronj2006.0124
Agron J 2007 99: 607-613. [Abstract] [Full Text] [Figures Only] [PDF]  

ECONOMIC ANALYSIS:

Elizabeth L. Nail, Douglas L. Young, and William F. Schillinger

Government Subsidies and Crop Insurance Effects on the Economics of Conservation Cropping Systems in Eastern Washington
Published online 4 April 2007; doi:10.2134/agronj2006.0006
Agron J 2007 99: 614-620. [Abstract] [Full Text] [PDF]  

ALFALFA:

D. P. Malinowski, W. E. Pinchak, B. A. Kramp, H. Zuo, and T. J. Butler

Supplemental Irrigation and Fall Dormancy Effects on Alfalfa Productivity in a Semiarid, Subtropical Climate with a Bimodal Precipitation Pattern
Published online 4 April 2007; doi:10.2134/agronj2006.0056
Agron J 2007 99: 621-629. [Abstract] [Full Text] [Figures Only] [PDF]  

TILLAGE:

Mario Perez-Bidegain, Richard M. Cruse, and Allan Ciha

Tillage System by Planting Date Interaction Effects on Corn and Soybean Yield
Published online 4 April 2007; doi:10.2134/agronj2006.0058
Agron J 2007 99: 630-636. [Abstract] [Full Text] [Figures Only] [PDF]  

Senyu Chen

Tillage and Crop Sequence Effects on Heterodera glycines and Soybean Yields
Published online 11 May 2007; doi:10.2134/agronj2006.0150
Agron J 2007 99: 797-807. [Abstract] [Full Text] [Figures Only] [PDF]  

DROUGHT:

J. T. Baker, D. C. Gitz, P. Payton, D. F. Wanjura, and D. R. Upchurch

Using Leaf Gas Exchange to Quantify Drought in Cotton Irrigated Based on Canopy Temperature Measurements
Published online 4 April 2007; doi:10.2134/agronj2006.0062
Agron J 2007 99: 637-644. [Abstract] [Full Text] [Figures Only] [PDF]  

SOYBEAN:

Kelly A. Nelson, George E. Rottinghaus, and Teak E. Nelson

Effect of Lactofen Application Timing on Yield and Isoflavone Concentration in Soybean Seed
Published online 4 April 2007; doi:10.2134/agronj2006.0067
Agron J 2007 99: 645-649. [Abstract] [Full Text] [PDF]  

James E. Board, Vijay Maka, Randy Price, Dina Knight, and Matthew E. Baur

Development of Vegetation Indices for Identifying Insect Infestations in Soybean
Published online 4 April 2007; doi:10.2134/agronj2006.0155
Agron J 2007 99: 650-656. [Abstract] [Full Text] [Figures Only] [PDF]  

CORN:

Trenton F. Stanger and Joseph G. Lauer

Corn Stalk Response to Plant Population and the Bt–European Corn Borer Trait
Published online 4 April 2007; doi:10.2134/agronj2006.0079
Agron J 2007 99: 657-664. [Abstract] [Full Text] [Figures Only] [PDF]  

Noura Ziadi, Gilles Bélanger, Athyna N. Cambouris, Nicolas Tremblay, Michel C. Nolin, and Annie Claessens

Relationship between P and N Concentrations in Corn
Published online 11 May 2007; doi:10.2134/agronj2006.0199
Agron J 2007 99: 833-841. [Abstract] [Full Text] [Figures Only] [PDF]  

SORGHUM:

R. L. Baumhardt, J. A. Tolk, T. A. Howell, and W. D. Rosenthal

Sorghum Management Practices Suited to Varying Irrigation Strategies: A Simulation Analysis
Published online 4 April 2007; doi:10.2134/agronj2006.0092
Agron J 2007 99: 665-672. [Abstract] [Full Text] [Figures Only] [PDF]  

SOIL & CROP MANAGEMENT:

Erandathie Lokupitiya, F. Jay Breidt, Ravindra Lokupitiya, Steve Williams, and Keith Paustian

Deriving Comprehensive County-Level Crop Yield and Area Data for U.S. Cropland
Published online 4 April 2007; doi:10.2134/agronj2006.0143
Agron J 2007 99: 673-681. [Abstract] [Full Text] [Figures Only] [PDF]  

Michael P. Russelle, JoAnn F. S. Lamb, Nancy B. Turyk, Byron H. Shaw, and Bill Pearson

Managing Nitrogen Contaminated Soils: Benefits of N₂–Fixing Alfalfa
Published online 11 May 2007; doi:10.2134/agronj2005.0325
Agron J 2007 99: 738-746. [Abstract] [Full Text] [Figures Only] [PDF]  

Douglas L. Karlen, Cynthia A. Cambardella, Carolee T. Bull, Craig A. Chase, Lance R. Gibson, and Kathleen Delate

Producer–Researcher Interactions in On-Farm Research: A Case Study on Developing a Certified Organic Research Site
Published online 11 May 2007; doi:10.2134/agronj2006.0125
Agron J 2007 99: 779-790. [Abstract] [Full Text] [Figures Only] [PDF]  

CROPPING SYSTEMS:

Upendra M. Sainju, Bharat P. Singh, Wayne F. Whitehead, and Shirley Wang

Accumulation and Crop Uptake of Soil Mineral Nitrogen as Influenced by Tillage, Cover Crops, and Nitrogen Fertilization
Published online 4 April 2007; doi:10.2134/agronj2006.0177
Agron J 2007 99: 682-691. [Abstract] [Full Text] [Figures Only] [PDF]  

SOILS:

D. A. Devitt, M. Lockett, R. L. Morris, and B. M. Bird

Spatial and Temporal Distribution of Salts on Fairways and Greens Irrigated with Reuse Water
Published online 4 April 2007; doi:10.2134/agronj2006.0183
Agron J 2007 99: 692-700. [Abstract] [Full Text] [Figures Only] [PDF]  

NITROGEN MANAGEMENT:

G. E. Varvel, W. W. Wilhelm, J. F. Shanahan, and J. S. Schepers

An Algorithm for Corn Nitrogen Recommendations Using a Chlorophyll Meter Based Sufficiency Index
Published online 4 April 2007; doi:10.2134/agronj2006.0190
Agron J 2007 99: 701-706. [Abstract] [Full Text] [Figures Only] [PDF]  

Maria L. Silveira, Vincent A. Haby, and Allen T. Leonard

Response of Coastal Bermudagrass Yield and Nutrient Uptake Efficiency to Nitrogen Sources
Published online 4 April 2007; doi:10.2134/agronj2006.0200
Agron J 2007 99: 707-714. [Abstract] [Full Text] [Figures Only] [PDF]  

Charles S. Wortmann, Martha Mamo, and Achim Dobermann

Nitrogen Response of Grain Sorghum in Rotation with Soybean
Published online 11 May 2007; doi:10.2134/agronj2006.0164
Agron J 2007 99: 808-813. [Abstract] [Full Text] [Figures Only] [PDF]  

BIOSOLIDS:

K. A. Barbarick and J. A. Ippolito

Nutrient Assessment of a Dryland Wheat Agroecosystem after 12 Years of Biosolids Applications
Published online 4 April 2007; doi:10.2134/agronj2006.0221
Agron J 2007 99: 715-722. [Abstract] [Full Text] [Figures Only] [PDF]  

INTERCROPPING:

Brock C. Blaser, Jeremy W. Singer, and Lance R. Gibson

Winter Cereal, Seeding Rate, and Intercrop Seeding Rate Effect on Red Clover Yield and Quality
Published online 4 April 2007; doi:10.2134/agronj2006.0247
Agron J 2007 99: 723-729. [Abstract] [Full Text] [Figures Only] [PDF]  

NOTES & UNIQUE PHENOMENA:

Carlos J. Fernandez and T. Neal Trolinger

Development of a Web-Based Decision Support System For Crop Managers: Structural Considerations and Implementation Case
Published online 4 April 2007; doi:10.2134/agronj2005.0196n
Agron J 2007 99: 730-737. [Abstract] [Full Text] [PDF]  

PASTURE MANAGEMENT:

Michael Popp, K. Coffey, W. Coblentz, Z. Johnson, D. Scarbrough, J. Humphry, T. Smith, D. Hubbell, and J. Turner

Empirical Analysis of Weaning and Pasture Rotation Frequency with Implications for Retained Ownership
Published online 11 May 2007; doi:10.2134/agronj2005.0346
Agron J 2007 99: 747-754. [Abstract] [Full Text] [Figures Only] [PDF]  

A. Deak, M. H. Hall, M. A. Sanderson, and D. D. Archibald

Production and Nutritive Value of Grazed Simple and Complex Forage Mixtures
Published online 11 May 2007; doi:10.2134/agronj2006.0166
Agron J 2007 99: 814-821. [Abstract] [Full Text] [Figures Only] [PDF]  

FORAGES:

Thomas C. Griggs, Jennifer W. MacAdam, Henry F. Mayland, and Joseph C. Burns

Temporal and Vertical Distribution of Nonstructural Carbohydrate, Fiber, Protein, and Digestibility Levels in Orchardgrass Swards
Published online 11 May 2007; doi:10.2134/agronj2006.0036
Agron J 2007 99: 755-763. [Abstract] [Full Text] [Figures Only] [PDF]  

SOIL QUALITY & FERTILITY:

Chad B. Godsey, Gary M. Pierzynski, David B. Mengel, and Ray E. Lamond

Management of Soil Acidity in No-Till Production Systems through Surface Application of Lime
Published online 11 May 2007; doi:10.2134/agronj2006.0078
Agron J 2007 99: 764-772. [Abstract] [Full Text] [Figures Only] [PDF]  

PHOSPHORUS MANAGEMENT:

J. W. Sij, W. E. Pinchak, D. P. Malinowski, D. L. Robinson, S. J. Bevers, T. A. Baughman, and R. J. Gill

Yield and Economic Responses to Phosphorus Fertilizer Placement in Dual-Use and Grain-Only Wheat Production Systems
Published online 11 May 2007; doi:10.2134/agronj2006.0113
Agron J 2007 99: 773-778. [Abstract] [Full Text] [PDF]  

COTTON:

Gang Wu, Fa-Jun Chen, Yu-Cheng Sun, and Feng Ge

Response of Cotton to Early-Season Square Abscission under Elevated CO₂
Published online 11 May 2007; doi:10.2134/agronj2006.0138
Agron J 2007 99: 791-796. [Abstract] [Full Text] [PDF]  

SITE-SPECIFIC ANALYSIS & MANAGEMENT:

Manuel Bermudez and Antonio P. Mallarino

Impacts of Variable-Rate Phosphorus Fertilization Based on Dense Grid Soil Sampling on Soil-Test Phosphorus and Grain Yield of Corn and Soybean
Published online 11 May 2007; doi:10.2134/agronj2006.0172
Agron J 2007 99: 822-832. [Abstract] [Full Text] [Figures Only] [PDF]  

S. A. Staggenborg, M. Carignano, and L. Haag

Predicting Soil pH and Buffer pH In Situ with a Real-Time Sensor
Published online 11 May 2007; doi:10.2134/agronj2006.0254
Agron J 2007 99: 854-861. [Abstract] [Full Text] [Figures Only] [PDF]  

CANOLA:

H. A. Cárcamo and R. E. Blackshaw

Insect Pest Incidence and Injury to Herbicide-Tolerant Canola in Western Canada
Published online 11 May 2007; doi:10.2134/agronj2006.0236
Agron J 2007 99: 842-846. [Abstract] [Full Text] [Figures Only] [PDF]  

DRYLAND CROPPING SYSTEMS:

Kayuki C. Kaizzi, John Byalebeka, Charles S. Wortmann, and Martha Mamo

Low Input Approaches for Soil Fertility Management in Semiarid Eastern Uganda
Published online 11 May 2007; doi:10.2134/agronj2006.0238
Agron J 2007 99: 847-853. [Abstract] [Full Text] [Figures Only] [PDF]  

FERTILIZER MANAGEMENT:

Frank Forcella and Sharon Lachnicht Weyers

Mid-Continent Fall Temperatures at the 10-cm Soil Depth
Published online 11 May 2007; doi:10.2134/agronj2006.0264
Agron J 2007 99: 862-866. [Abstract] [Full Text] [Figures Only] [PDF]  

ASA YEARLY REPORTS:

ASA Yearly Reports
Published online 11 May 2007; doi:10.2134/agronj2006.0107p
Agron J 2007 99: 867. [Full Text] [PDF]  

REPORTS OF ASA DIVISIONS, BRANCHES, AND COMMITTEES 2006:

Reports of ASA Divisions, Branches, and Committees, 2006
Published online 11 May 2007; doi:10.2134/agronj2006-0124d
Agron J 2007 99: 868-876. [Full Text] [PDF]  

AWARDS PRESENTED IN AGRONOMY, 2006:

Awards Presented in Agronomy, 2006
Published online 11 May 2007; doi:10.2134/agronj2006.06.0170a
Agron J 2007 99: 877-881. [Full Text] [PDF]  

FELLOWS OF THE AMERICAN SOCIETY OF AGRONOMY:

Fellows of the American Society of Agronomy: Elected in 2006
Published online 11 May 2007; doi:10.2134/agronj2006.06.0171f
Agron J 2007 99: 882-887. [Full Text] [PDF]  

ASA FELLOWS AND AWARDS RECIPIENTS:

ASA Fellows and Award Recipients
Published online 11 May 2007; doi:10.2134/agronj2006.0200p
Agron J 2007 99: 888-892. [Full Text] [PDF]  

THANKS TO OUR REVIEWERS:

Thanks to Our Reviewers
Published online 11 May 2007; doi:10.2134/agronj2006.0203t
Agron J 2007 99: 893-897. [Full Text] [PDF]  

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