Year: 2020 | Month: March | Volume 13 | Issue 1
Effect of Integrated Nutrient Management on Yield and Economics in Summer Sweet Corn (Zea mays L. saccharata)
DOI:10.30954/0974-1712.1.2020.3
Abstract:
The field experiment was carreied out at Research Farm, Bagusala, M.S. Swaminathan School of Agriculture, Centurion University of Technology and Management during summer, 2018. The soil was sandy loam in texture, slightly acidic in reaction ( pH 6.8 ) and low in available N (158.83 kg /ha) and P2O5 (10.82 kg /ha) and medium in available K2O (147.67 kg/ha). The randomized complete block design was adopted with three replications for testing 8 treatments. They were consisted of 100% recommended dose of fertilizer ( DF) @ 120-60-60 kg of N-P2O5-K2O /ha), 100% RDF + bio fertilizer consortia (Azotobactor + Azosporillum + phosphobacter) @15 kg/ha, 50 % recommended dose of nitrogen (RDN) through farm yard manure (FYM) + 50 % RDF + bio fertilizer consortia (BFC) @15 kg/ha, 50 % RDN through vermi compost (VC) + 50% RDF + BFC @15 kg/ha, 75 % RDF + 25 % RDN through FYM, 75 % RDF + 25 % RDN through VC, 75 % RDF + 25 % RDN through FYM + BFC @15 kg/ha and 75 % RDF + 25 % RDN through VC + BFC @15 kg/ha. The yield attributes such as number of cobs/plant, cob length, cob girth and cob weight along with green cob and forage yield were remarkably influenced by integrated nutrient management treatments. Application of 75 % RDF + 25 % RDN (VC) + BFC @15 kg/ha recorded the highest yield attributes and green cob (12.01 t/ha) and fodder (` 16.52 t/ha) yield. It was followed by 100 % RDF + BFC @15 kg/ha producing the green cob and forage yield of 11.67 and 16.17 t/ha, respectively. The maximum net return (Rs. 164206/ ha) and benefit cost ratio (1.92) was obtained with integration of 100 % RFD (120-60-60 kg of N, P2O5 and K2O /ha) and BFC (Azotobactobacter + Azosporillum + posphobacter) @15 kg/ha.
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