Influence of K application on the yield and quality of Bottle Gourds (Lagenaria siceraria) in relation of K-forms and release characteristics in Alfisol soils of Eastern India

Application of K in soil at higher level showed significant enhancement in yield ,quality parameters of Bottle gouard and different forms of K. Highest value of total extractable K was found (2404 kg ha -1 ) with the application of 200 % K as basal (T4) while elimination of K from treatment (T1) resulted in considerable decrease in step K from initial status of soil.High degree of correlation value of available K with exchangeable K (r= 0.98 ** ) than with water soluble K (r= 0.78 ** ) showed that soil exchangeable phase played more significant role in regulating the availability of K. Key Word; Soil, Potassium ,Fertilizer, Quality parameters, Yield and Correlation. -------------------------------------------------------------------------------------------------------------------------------------Date of Submission: 12-06-2020 Date of Acceptance: 29-06-2020 ------------------------------------------------------------------------------------------------------------------------------------