Author(s):

Anil Kumar Shukla, Janardan Yadav and Achin Kumar

Abstract: Biochar as a bulking agent for composting has been proposed as a novel approach to prepare good quality compost due to large surface area and porosity, thus high ion exchange and adsorption capacity. Field experiments were carried out at Agricultural Research Farm, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi (U.P.) during rabi 2013-14 and 2014-15 to evaluate the effect of biochar based enriched manures on plant growth parameters and yield of wheat at different NPK levels. The experiment was replicated thrice in a factorial randomized block design (FRBD). The results showed that, the application of biochar based enriched manures along with fertilizers significantly increased the number of tillers m^-1 row length, number of grains spike^-1, test weight (g) and grain yield of wheat. Among the enriched manures levels, application of biochar composted with carpet waste in ratio of 2:1 along with enriched with PGPR consortium gave significantly highest result over the control. Among the levels of recommended dose of fertilizer, application of 100% RDF (RDF₁₀₀) recorded significantly higher improvement in yield parameters and yield over 50% RDF (RDF₅₀) and control (RDF₀). The interaction effect of biochar based manures and fertilizer levels (RDF₁₀₀ × BM₆) were also showed a beneficial effect on grain yield of wheat.

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