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The document summarizes two cotton verification programs conducted in Lee County and Phillips County, Arkansas. The Lee County program aimed to verify that cotton could be successfully double cropped after wheat harvest in early June. The Phillips County program aimed to grow conventional non-Bt, non-Roundup Ready cotton in an area dominated by transgenic cotton. In Lee County, double cropped cotton yielded 697 pounds of lint per acre. In Phillips County, conventional cotton yielded 545 pounds of lint per acre but incurred losses due to poor stand and possible glyphosate drift. Both programs demonstrated advantages and disadvantages of the respective production systems to local producers.
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- 1. LEE AND PHILLIPS COUNTY ARKANSAS COTTON VERIFICATION PROGRAM Robert Goodson T. 1,B. Barber2, McClelland 3 1County Extension Agent, Arkansas Cooperative Extension Service, Phillips County, Helena AR, 72342 2Cotton Agronomist, Arkansas Cooperative Extension Service, Little Rock AR, 72204 3State Cotton Verification Coordinator, Arkansas Cooperative Extension Service, Keiser AR 72351 Cotton Verification Purpose Program Objectives Lee County Verification field was a project to Problem 1. Conduct on farm field trials to verify verify that cotton could be double cropped researched based recommendations after wheat harvest in early June with the interest of increasing profit Due to height 2. 2. Educate producers on timely of wheat Phillips County Verification field was a project stubble early management decisions to verify that conventional (non Bt and non 3. Aid researchers in identifying areas plant growth in roundup ready) could be grown in a transgenic double crop that need additional inquiry 4. Aid local Extension personnel to learn cotton growing area cotton was tall more about all aspects of cotton and spindly production Problem Low seed Methods quality of new conventional Late season cotton, Lygus proved to be a (tarnished plant rough start bug) control for the crop was vital in producing June planted cotton in Arkansas Possible Glyphosate drift was on possible solution Problem to low yield in Results conventional cotton Yield Results Double Crop Wheat & Cotton Double Crop Wheat Cotton 1. When planting cotton behind wheat, stubble 697 lbs lint/acre should be cut short to prevent spindly plants early Conventional Cotton in the season. 545 lbs lint/acre 2. Weed control and irrigation is easier due to wheat ABSTRACT stubble . 3. Cotton can be planted behind wheat successfully The cotton research verification program is an interdisciplinary effort in which recommended best management practices and production technologies are applied in a as long as inputs are kept low timely manner. Objectives of the program are: (1) conduct on farm field trials to verify researched based recommendations with the interest of increasing profit, (2) educate producers on timely management decisions, (3) Aid researchers in identifying area that need additional inquiry and (4) to aid Extension personnel to learn more about Conventional Cotton all aspects of cotton production. In cooperation with producers in both counties, it was decided to plant a conventional (non-transgenic) variety in Phillips County and in Lee 1. Seed quality is important in cotton production County cotton was planted double crop behind wheat. The two issues in Phillips County was being able to grow non roundup ready cotton when all the surrounding whether conventional or transgenic crops were and could the lepidopteron pests be controlled on a non Bt cotton variety 2. Pest management in conventional cotton is The issue in Lee County was would there be enough time to produce an economical cotton crop planting so late in the growing season. Success was measured on how each possible with current herbicides and insecticides crop fared economically. Due to poor stand and possibly glyphosate drift the Phillips County project lost $3.79 an acre. A success on the field was that the lepidopteron pest 3. Glyphosate drift in conventional cotton is an issue United States Department of Agriculture, University of Arkansas, and County Governments Cooperating can be controlled with new insecticides on the market. In Lee County production cost were kept low and due to a higher market price the program profited $415 an acre. The that must be control led. If not there will be The Arkansas Cooperative Extension Service offers its programs to all eligible persons regardless of race, program was able to show the advantages and disadvantages of each production system to all local producers. excessive yield loss. color, national origin, religion, gender, age, disability, marital or veteran status, or any other legally protected status, and is an Affirmative Action/Equal Opportunity Employer