Vol. 10, Issue 10 (2021)

Author(s):
P Madhukar Rao, GECH Vidya Sagar, K Suresh, G Padmaja and S Narender Reddy

Abstract:
A field experiment was conducted at Regional Agricultural Research Station, Polasa, Jagtial during kharif, 2018 and 2019 to study the effect of integrated nutrient management practices on nutrient uptake and yield of maize in maize-mustard cropping system. The experiment was laid out in a randomized block design for maize during kharif, 2018 with nine treatments comprising of T₁-100% RDF, T₂-75% RDN + 25% N through FYM, T₃-75% RDN + 25% N through vermicompost, T₄-75% RDN + 25% N through poultry manure, T₅-75% RDN+ 25% N through sheep manure, T₆-75% RDN + 25% N through neem cake, T₇-75% RDN + Azotobacter @ 5 kg ha^-1, T₈-75% RDN + Azospirillum @ 5 kg ha^-1 and T₉-75% RDN + Azotobacter @ 2.5 kg ha^-1 + Azospirillum @ 2.5 kg ha^-1 which were replicated thrice. Significantly higher nitrogen, phosphorus and potassium uptake was recorded with 75% RDN + 25% RDN through vermicompost which is on par with 100% RDF and 75% RDN + 25% RDN through FYM, 75% RDN + 25% RDN through sheep manure at harvest during 2018 and 2019. Significantly higher grain yield (6349 and 6514 kg ha^-1 in 2018 and 2019, respectively) and stover yield (8259 and 8460 kg ha^-1 in 2018 and 2019, respectively) over 75% RDN + 25% N through poultry manure, 75% RDN + 25% N through neem cake, 75% RDN + Azotobacter @ 2.5 kg ha^-1 + Azospirillum @ 2.5 kg ha^-1, 75% RDN + Azospirillum @ 5 kg ha^-1, 75% RDN + Azotobacter @ 5 kg ha^-1. While, it is comparable with 100% RDF, 75% RDN + 25% N through FYM and 75% RDN + 25% N through sheep manure.