Growth and productivity of wheat (Triticum aestivum L.) as influenced by use of biofertilizers
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Date
2019
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Punjab Agricultural University, Ludhiana
Abstract
The study entitled, “Growth and productivity of wheat [Triticum aestivum (L.)] as influenced by use of biofertilizers” was conducted during the rabi season of 2018-19 at research farm Punjab Agricultural University Regional Research Station, Bathinda and School of Organic Farming, Punjab Agricultural University, Ludhiana to evaluate the effect of integrated nutrient management in wheat and on soil fertility status. At both the locations, soil was low in organic carbon, available N and medium in P and K & normal in pH. The treatments included different combinations of N and P at 12.5 and 25% less dose of fertilizers with two methods of biofertilizers application which were seed treatments and soil application. The experiment was laid in randomized complete block design with three replications. Among different methods of biofertilizers, seed treatment was better than the soil application. Numerically higher growth and yield attributing characters were observed in treatments where biofertilizers used as seed treatment. With decreasing fertilizers level to 82.5% and 75% had numerically higher growth and yield attributing character as compared to control and 100% RDF were observed. Grain yield was statistically at par with seed treatment and soil application treatment and different from control plots. It was found to be 12.85 and 11.14 % higher in 87.5%N + 87.5% P +Azotobacter spp. + Streptomyces badius seed treatment as compared to RDF on both locations Bathinda and Ludhiana, respectively. Highest benefit cost ratio (3.38 and 3.38) was found in 75% N + 75% P + Azotobacter spp. + Streptomyces badius on both locations Bathinda and Ludhiana. Thus, the study concluded that Azotobacter spp. and Streptomyces badius may be used synergistically as a potential source of plant growth promotion and to reduce chemical fertilizer to 25 and 12.5 % without compromising yield.
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