Physico-chemical Properties of Soil as Influenced by Combined Application of Organic and Inorganic Sources to Fodder Oat and Succeeding Residual Fodder Maize
Harsita Nayak *
Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India.
J. S. Bohra
Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India.
Shiv Poojan Yadav
Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India.
Tejbal Singh
Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, India.
Priyanka Saha
Division of Agronomy, Indian Agricultural Research Institute, New Delhi-110012, India.
*Author to whom correspondence should be addressed.
Abstract
An experimental trial was carried out during 2018-19 and 2019-20 at Banaras Hindu University, Varanasi, to assess the direct and residual effect of varying levels of fertility and organic sources on different soil chemical properties. Application of fertility levels had non-significant direct and residual effects on soil health in both the years, though maximum values were obtained with 100% RDF. After fodder oat harvest, the maximum values of available NPK in the soil were observed using FYM over poultry manure and vermicompost. Application of 50 kg nitrogen ha-1 through organic sources recorded distinctly higher soil available N, P, and K after the harvest of fodder oat. However, the residual effect of nitrogen levels and organic sources failed to touch the significant level of soil health parameters after harvesting fodder maize.
Keywords: Fertility, organic, residual, soil health, vermicompost