Effect of spacing and INM practices on growth, yield and economics of Rabi sweet corn (Zea mays L. var. saccharata Sturt) under south Gujarat condition

Abstract

A field experiment was conducted at college farm, N. M. College of Agriculture, Navsari Agricultural University, Navsari (GJ), during rabi season in 2016-17 to study the influence of of spacing and integrated nutrient management on sweet corn (Zea mays L. saccharata) under south Gujarat condition”. The experiment was laid out in Factorial randomized blok design (FRBD) with three replications. The factors consisted of three spacing (45 cm x 30 cm, 60 cm x 20 cm and 60 cm x 30 cm), three nutrient management practices (100% RDF (120:60:00 NPK kg/ha, 75% RDF + 25% RDN through Biocompost and 50 % RDF + 50% RDN through Biocompost) and two biofertilizers i.e. with Azotobactor + PSB + KMB and without biofertilizers. The results revealed that, spacing 60 cm x 20 cm recorded significantly higher green cob (91.93 qha-1), fodder yield (318.65 qha-1) and net return (Rs.206430 ha-1) with B:C ratio of 6.04. Application of 100% RDF (120:60:00 NPK kgha-1) recorded the significantly highest green cob (90.13 qha-1), fodder yield (311.74 qha-1) and net return Rs.206156 ha-1 with B:C ratio 6.64. Biofertlizers i.e. Azotobacter + PSB + KMB application recorded the significantly highest green cob (86.64 qha-1), fodder yield (299.68 qha-1) and net return (Rs.194488ha-1) with B:C ratio of 6.05.