Effectiveness of Split Applications and Foliar Potassium on Different Cotton Varieties

Newer cotton varieties grown in Georgia and the southeast are known to have different fruiting patterns than popular varieties used in the past, namely DPL 555.  Recent field research results in Georgia have shown that current recommendations for potassium rates are sufficient for these new varieties. However, there are still questions concerning timing of potassium fertilizer applications.  The effectiveness of split applications of soil applied K and foliar K were both evaluated in terms of yield and lint quality on eight different cotton varieties.  Early and late foliar applications were also compared.