Vol. 9, Special Issue 1, Part M (2025)

An attempt has been made to study the effect of different levels of nitrogen, phosphorus and potassium along with soil and foliar application of zinc and boron on yield and quality of cashew nut (Anacardium occidentale L.) Variety Vengurla-4 in lateritic soil of Konkan during May 2015 to April 2016 in Randomized Block Design with four levels of NPK (1.0:0.25:0.25, 1.0:0.50:0.50, 1.5:0.75:0.75 and 2.0:1.0:1.0 kg NPK per tree) with or without soil application of boron through borax @ 50 g + zinc through zinc sulphate @ 125 g/tree or foliar application of boron through borax @ 0.25% + zinc through zinc sulphate @ 0.5% /tree, an absolute control (to judge the fate of native nutrients) comprising thirteen treatments replicated thrice. Application of 1.0:0.50:0.50 NPK kg/tree + foliar application of boron through borax @ 0.25% + zinc through zinc sulphate @ 0.5% / tree (T₁₁) recorded significantly higher total nitrogen and copper in cashew nut leaves, while Application of 2.0:1.0:1.0 NPK kg/ tree + boron through borax @ 0.25% + zinc through zinc sulphate @ 0.5%/tree (T₁₃) recorded significantly higher total micronutrient (viz., Mn, Zn and B) in cashew nut leaves and also micronutrient (viz., Fe, Mn, Zn and Cu) in cashew kernel.By considering the higher yield of cashew nut, protein and oil content, NPK and micro-nutrient (i.e. Fe, Mn, Cu, Zn and B) content in leaf at different growth stages of cashew (i.e. at new emergence shoot stage, flowering stage, nut setting stage and at harvest), application 1.0:0.50:0.50 kg NPK per tree along with spraying of foliar application of boron though borax @ 0.25% + zinc through zinc sulphate @ 0.5% was to be beneficial in lateritic soils of Konkan.