Jason Kelley¹, Steven Sheets¹, Kevin Lawson¹, Bill Apple², Mike Duren³ and Scott Hayes⁴, (1)Crops, Soils and Environmental Science, University of Arkansas Division of Agriculture Extension, Little Rock, AR, (2)Lon Mann Cotton Research Station, University of Arkansas, Marianna, AR, (3)Northeast Research and Extension Cener, University of Arkansas, Keiser, AR, (4)Southeast Research and Extension Center, University of Arkansas, Rohwer, AR