Vol. 7, Issue 3 (2019)
Effect of planting density and nutrient management on growth, yield and economics in Kharif maize (Zea mays L.) hybrids
Author(s): J Nayak, A Mahapatra, PP Pradhan and J Mishra
Abstract: A field experiment was conducted at the Instructional Livestock Farm, Orissa University of Agriculture and Technology, Bhubaneswar to study the effect of Planting density and nutrient management on growth, yield and economics in kharif maize hybrids during 2017. There were eighteen treatment combinations where three main plot contains three varieties like OMH 14-27, Hishel and P 3441, sub plot contains two planting densities viz. D1-83,333 plants ha-1 and D2-1,00,000 plants ha-1 with a spacing of 60 cm x 20 cm and 50 cm x 20 cm respectively and sub-sub plot contains three nutrient levels (N:P2O5:K2O kg ha-1), N1- RDF(120:60 :60), N2- STCR (124:15:116), N3- SSNM (140:37:86). The experiment was laid out in a split-split plot design with three replications. The soil of the experimental site was loamy sand in texture, acidic in reaction (pH 4.47), medium in available nitrogen (312 kg/ha), high in available phosphorus (104 kg/ha) and low in potassium (64 kg/ha). The investigation revealed that significantly maximum plant height (at harvesting stage), number of leaves (60 DAS), LAI (60 DAS), dry matter accumulation and CGR (45-60DAS) was obtained in V1-OMH 14-27 (183.58 cm, 15.75, 3.97, 1391.44 g m-2, 27.48 g m-2 day-1), D2 (177.8 cm,14.98, 3.81, 1392.75 g m-2, 27.53 g m-2 day-1), N2 (179.9 cm, 15.32, 3.87, 1378.56 g m-2, 27.35 g m-2 day-1) respectively. The RGR value during 30-45 DAS was significantly higher in V2-Hishel and N1-RDF as 0.055 and 0.058 g m-2day-1 respectively and there was no significant difference between two densities with respect to RGR. Highest grain yield and stover yield was obtained in V1 (6.88 t ha-1, 9.63 t ha-1), D2 (6.86 t ha-1, 9.53 t ha-1), N2 (7.02 t ha-1, 9.68 t ha-1). The gross return in V1 was higher than V2 and V3 by 3.92% and 2.89% respectively. The recorded gross return in D2 was higher than D1 by 3.57% whereas in case of N2, it was higher than N1.
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How to cite this article:
J Nayak, A Mahapatra, PP Pradhan, J Mishra. Effect of planting density and nutrient management on growth, yield and economics in Kharif maize (Zea mays L.) hybrids. Int J Chem Stud 2019;7(3):3189-3192.