Variety and Soil Test Potassium Effects On Cotton Nutrition and Lint Yield

Five Deltapine varieteis ranging from early maturity to full season (DPL 444, 445, 455, 454, and 555) were grown at various residual soil test K levels which ranged from low to high. During the course of this study no fertilizer K was added, only the recommended fertilizer N. Leaf samples were collected at early bloom each year and were analyzed for total N and K. These results and lint yield will be presented.