Effect of soil application of potassium and foliar spray of zinc and boron on available nutrient content in soil at different growth stages of watermelon [Citrullus lanatus (Thunb.)]

Abstract

The experiment was conducted on the lateritic soil of Konkan region to study the “Effect of soil application of potassium and foliar spray of zinc and boron on availability of different nutrient in soil at different growth stage of watermelon [Citrullus lanatus (Thunb).]. The investigation was revealed that the nutrient content in soil i.e available nitrogen, phosphorus, potassium, zinc and boron at various growth stages found influenced due to application of 75 kg K2O ha-1 along with 0.5% Zn and 0.1% B, significantly. It was observed that nitrogen, phosphorus and potassium content in soil is decreased at harvest and Boron and zinc availability in soil is highest after foliar spraying of Zn and B at 60 DAS.