Effect of integrated nitrogen management on soil properties and enzymatic activities

POONAM KUMARI YADAV; B L YADAV; BASU DEVI YADAV; SHITAL YADAV; SURESH YADAV

doi:10.56093/ijas.v90i11.108593

Authors

POONAM KUMARI YADAV Ph D Scholar and corresponding author, Department of Soil science and agricultural chemistry, SKNAU Jobner, Jaipur (Rajasthan)
B L YADAV Emeritus Professor, Department of Soil Science and Agricultural Chemistry, SKNAU Jobner,Jaipur (Rajasthan)
BASU DEVI YADAV Ph D Scholar, Department of Soil Science and Agriculture Chemistry, SKRAU Bikaner (Rajasthan)
SHITAL YADAV Ph D Scholar, Department of Soil Science and Agriculture Chemistry, SKRAU Bikaner (Rajasthan)
SURESH YADAV Ph D Scholar, Division of Genetics, ICAR- IARI, New Delhi

https://doi.org/10.56093/ijas.v90i11.108593

Keywords:

Alkaline phosphatase, Azotobacter, Dehydrogenase enzyme, FYM, Nitrogen, Organic carbon, Vermicompost

Abstract

A field experiment was conducted at Agronomy farm, of S K N College of Agriculture, Jobner (Rajasthan) during kharif season 2017 in loamy sand soil with an objective “Effect of Integrated nitrogen management on soil properties in pearlmillet [Pennisetum glaucum (L.) R. Br. Emend Stuntz]”. The experiment was laid out in factorial randomized block design with three replications, comprised eight treatments of sources of nitrogen (Control, 50% RDN through urea+ 50% RDN through vermicompost, 50% RDN through urea+ 50% RDN through FYM, 75% RDN through urea+ 25% RDN through vermicompost, 75% RDN through urea+ 25% RDN through FYM, 100% RDN through urea, 100% RDN through vermicompost and 100% RDN through FYM) and two treatments of biofertilizer (without inoculation and with Azotobacter) were applied to the pearlmillet var. RHB-173. The application of sources of nitrogen,soil organic carbon, available nitrogen, phosphorus, potassium, dehydrogenase activity and alkaline phosphataseactivity were increased significantly with the application of 75% RDN through urea+ 25% RDN through vermicompost at flowering and harvest stage.The soil organic carbon, available N, P₂O₅, K₂O, dehydrogenase activity and alkaline phosphates activities were also increased when inoculated with biofertilizer.

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