Vol. 12, Issue 12 (2023)

Author(s):
Aniket Girigoud, Anand Naik, Siddaram, Bhat SN and Bellakki MA

Abstract:
A field experiment was conducted during kharif 2022 at KVK, Kalaburagi to study the Nutrient Management with Nano-DAP in Pigeonpea. There were eight treatments consisting of different doses of RDF (Two treatments with 100% RDF, two treatment with 75% RDF, Two treatment with 50% RDF along 100% RDF and absolute control) with different doses of Nano-DAP sprayed at 45 & 60 DAS. Results revealed that application of 100% RDF as basal + Nano-DAP spray @ 4 ml l^-1 each at 45 and 60 DAS has produced significantly higher nutrient content and uptake. It has resulted in enhanced nutrient content in seed (2.46%, 1.07% and 1.63% at N, P and K, respectively). and stalk (0.55%, 0.58% and 0.78% at N, P, and K, respectively) further higher uptake in grain (36.31, 15.83, 24.19 kg/ha of N, P and K, respectively) and in stalk (25.41, 26.66, 34.84 kg/ha of N, P, and K respectively) Results confirmed that reduced rate of conventional fertilizer can be substituted by foliar application of nano fertilizers to enhance nutrient use efficiency.