Effect of seed priming, biofertilizer inoculations and nitrogen levels on late sown wheat
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Date
2017
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CCSHAU
Abstract
A field experiment entitled “Effect of seed priming, biofertilizer inoculations and nitrogen levels on late sown wheat” was conducted during the rabi season of 2015-16 at Agronomy Research Farm of Chaudhary Charan Singh Haryana Agricultural University, Hisar. The experiment consisted of 5 treatments in main plots i.e. no seed priming, seed priming with water, seed priming with water + Azotobacter, seed priming with water + AM fungi, seed priming with water + Biomix, 4 nitrogen levels in sub plots (120,135,150,165 kg N ha-1). The 20 treatment combinations were tested in split plot design with three replications. Based on research investigation it was found that seed priming with water significantly improved germination, reduced days taken to different phenological parameters, plant stand, growth parameters except tillers which was not significantly better over nonpriming. Biofertilizer inoculations (Azotobacter, AM fungi and Biomix) along with seed priming significantly improved growth parameters, yield attributes except 1000 - grain weight, yields, protein yield and nutrient uptake as compared to no inoculation, but it had no effect on harvest index. Plant height, dry matter accumulation, LAI, CGR, number of tillers, all the yield attributes, grain yield, biological yield, protein yield, N content and total NPK uptake increased significantly up to 150 kg N ha-1, which was at par with 165 kg ha-1. However, N uptake in grain, total uptake and protein content and protein yield increased significantly up to 165 kg N ha-1. Highest net returns were obtained under priming + Biomix treatment (Rs. 44041) with B:C of 2.07 which was statistically at par with all the priming + biofertilizer inoculations. In case of nitrogen levels highest returns were obtained in 165 kg dose (Rs. 44878), which were at par to 150 kg ha-1. Seed priming + inoculation with biofertilizer (Biomix/AM fungi) along with 135 kg N ha-1 produced statistically comparable yield and economic returns to 150-165 kg N ha-1 without priming and inoculation treatments.
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