Cotton Response to Soil and Foliar Applied Potassium Fertilizer

The main objective of this research was to determine the impact of pre-plant, in-furrow and foliar applied potassium (K) fertilizer on cotton growth, yield, and quality. Evaluated under both low and high irrigation in Lamesa and New Deal, TX, treatments consisted of preplant applied liquid K fertilizer, in-furrow applied K fertilizer, foliar K applied three times during the growing season, and the combination of in-furrow and foliar applications. Soil samples were taken preseason at soil depths of 0-6”, 6-12” and 12-24”, and leaf tissue samples were collected prior to and after the first foliar application. Differences in lint yield and fiber quality between soil and foliar applied K treatments will be determined.