L. Espinoza, P. Ballantyne, and M. Ismanov. University of Arkansas Cooperative Extension Service, 2301 S. University Ave, Little Rock, AR 72203
Cotton cultivars DP 555, DP 444, and ST 5599 were grown in a silt loam soil and were fertilized according to soil test levels for N and K. Data on the varietal response to varying N and K fertilization timing will be presented, including yield distribution accoring to fruiting node position.