Effect of Potassium and Sulphur on Yield of Cotton

A lysimeter experiment was conducted in kharif 2006-07 and 2007-08 on medium black calcareous soils with four levels each of K (0, 90, 120 and 150 kg K₂O ha^-1) and S (0, 10, 20, 40 kg S ha^-1) in factorial CRD having three replications. The results revealed that the application of potassium and sulphur at varying levels significantly influenced on the seed cotton and stalk yield of cotton in both years as well as in pooled results and yield attributes. The significantly higher seed cotton (159g plant-1), stalk (267.5 g plant-1), number of bolls per plant (53.6), oil content (19.86 %) and ginning percentage (36.75) were recorded with highest level of K₁₅₀.Whereas, the higher seed cotton and stalk yield of cotton were recorded with S₂₀ and S₄₀ treatment, respectively. Simultaneously, the application of K and S increased their respective concentration and uptake by seed cotton and stalk of cotton and their soil availability.