Cotton Injury As Influenced by Herbicides, Irrigation, Seedling Vigor, Seeding Depth, and Environmental Stresses

Cotton injury from at-plant residual herbicides was severe across Georgia during 2011.  During planting, extreme hot and dry conditions forced growers to irrigate much more aggressively than in previous years.  Additionally, a grower’s ability to harvest cotton is directly related to controlling glyphosate-resistant Palmer amaranth which requires at least two and often three at-plant herbicides be applied.  Thus, an experiment was developed to better understand the relationship of herbicides, irrigation, seedling vigor, seed planting depth, and environmental stresses.