Effects of Potash and Seed Treatment on Performance of Two Cotton Varieties Grown in R. Reniformis Infested Soils

The study involves evaluating an early and full season cotton variety under three regimes of potash at two locations infested with R. reniformis with and without a nematicide seed treatment.  Plant mapping in-season was used to monitor the treatments as was box-mapping used at one location.  Brief results show that the early maturing variety responded greatly from the increases in potash especially as it was a very sensitive variety to R. reniformis.  The full season variety that was moderaterly sensitive showed negative responses to increased rates of potash since maturity was moved later.  However, potash addition did assist in overall plant health and performance in R. reniformis infested soils but differs by variety.