Evaluation of precision nitrogen management practices on growth, yield and economics of fodder maize

IRANNA   SANGALAD; B.G.  SHIVAKUMAR; V. S.   KUBASAD; N. S.  KULKARNI

IRANNA SANGALAD Department of Agronomy, University of Agricultural Sciences, Dharwad
B.G. SHIVAKUMAR ICAR-IGFRI, Southern Regional Research Station, Dharwad - 580 005, Karnataka, India
V. S. KUBASAD Department of Agronomy, University of Agricultural Sciences, Dharwad
N. S. KULKARNI ICAR-IGFRI, Southern Regional Research Station, Dharwad - 580 005, Karnataka, India

Keywords: Economics, Fodder maize, Nitrogen, Precision management

Abstract

A field experiment was conducted during rabi 2020-21 under irrigated conditions on red sandy loam soil toevaluate different precision nitrogen management practices on growth, yield and economics of fodder maize. The experimentconsisted of 14 nitrogen management practices laid out in randomized block design replicated thrice. The results indicatedthat application of 150 kg N ha-1 (40 % N basal) + remaining based on LCC 5 or SPAD 50 recorded higher plant height,number of leaves, leaf area, green fodder yield, dry fodder yield, gross returns, net returns and B:C ratio, as compared torecommended dose and method of nitrogen application viz. 75 kg N ha-1 as basal and 75 kg N ha-1 as top dressing at 30 daysafter sowing.