Effect of organic and inorganic sources of nitrogen on nutrient content and uptake of Maize (Zea mays L.)

Abstract

A field experiment was conducted during the Kharif season of 2024 at the Agronomy Instructional Farm, Rajasthan College of Agriculture, Udaipur, to evaluate the Effect of Organic and Inorganic Sources of Nitrogen on Nutrient Content and Uptake of Maize (Zea mays L.). The experiment followed a factorial randomized block design with 18 treatment combinations involving three nitrogen levels (50% RDN, 75% RDN, 100% RDN), three organic sources (Control, VC at 5 t ha⁻¹ and FYM at 2 t ha⁻¹) and two nano urea levels (control and NUS at 30 and 45 DAS). Results revealed that the combined application of 100% RDN + vermicompost 5 t ha⁻¹ + NUS significantly enhanced nitrogen; phosphorus and potassium content in seed and improved their uptake in both seed and stover. The treatment also recorded the highest total N, P and K uptake by grain and stover.