Effects of Potash On the Growth and Development of Early and Late Maturing Cotton Varieties Grown in Reniform Nematode Infested Soils

A study was initiated to evaluate the effects of potash levels on cotton produced in soils heavily infested with the reniform nematode (Rotylenchulus reniformis). The test was conducted at two locations (Mississippi State University- R.R. Foil Plant Research Center and Auburn University -Tennessee Valley Research Center ). Two cotton varieties, an early maturing (PHY 375 WRF) and a late maturing (PHY 499 WRF) with and without a nematicide seed treatment were used in the tests. Potash treatments included a recommended or maintenance rate, 1X and 2X above the maintenance rate as well as a no potash treatment. Plant mapping processes were used to evaluate the season long performance in the studies.