Effect of Fertility Levels and Liquid Biofertilizers on Productivity of Wheat (Triticum aestivum L.)

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Date
2021-08-06
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MPUAT, Udaipur
Abstract
A field experiment entitled “Effect of Fertility Levels and Liquid Biofertilizers on Productivity of Wheat (Triticum aestivum L.)” was conducted during rabi 2019 at Instructional Farm of Agronomy, Rajasthan College of Agriculture, Udaipur. The experiment consisted of 16 treatments combinations comprising of four levels of fertility (Control, 75, 100 and 125% RDF) and four levels of biofertilizers (Control, Azotobacter, PSB and Azotobacter + PSB). Experiment was conducted under factorial randomized block design replicated thrice taking wheat var. Raj.-4238 as test crop. Results showed that enrichment of soil with 100% RDF significantly increased the plant height, total tillersm-1 row length, effective tillers m-1 row length, test weight, grain, straw and biological yield, nutrient content and uptake by grain and straw viz. nitrogen, phosphorus, potassium, sulphur, zinc, iron, manganese and copper, available nitrogen, phosphorus, potassium and sulphur in soil, soil microbial population (bacteria, fungi and actinomycetes), soil microbial biomass carbon and nitrogen, dehydrogenase activity and alkaline phosphatase activity in soil after harvest of wheat. The significant increase in plant height, total tillersm-1 row length, effective tillers m-1 row length, test weight, grain, straw and biological yield, nutrient content viz. nitrogen, phosphorus, potassium, sulphur in grain and straw, nutrient uptake viz. nitrogen, phosphorus, potassium, sulphur, zinc, iron, manganese and copper by grain and straw, available nitrogen, phosphorus, potassium and sulphur in soil, soil microbial population (bacteria, fungi and actinomycetes), soil microbial biomass carbon and nitrogen, dehydrogenase activity and alkaline phosphatase activity in soil after harvest of wheat was observed due to seed inoculation with Azotobacter + PSB. There was no significant difference was observed due to fertility levels and biofertilizers on harvest index, bulk density, particle density, porosity, soil pH, EC and organic carbon. The liquid biofertilizers failed to show any significant effect on available zinc, iron, manganese and copper content in grain and straw, available zinc, iron, manganese and copper in soil after harvest of wheat.
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Effect of Fertility Levels and Liquid Biofertilizers on Productivity of Wheat
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Kumawat H. And Singh D.P.
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