Vol. 7, Issue 6 (2018)

Author(s):
O Siva Devika, P Ratna Prasad, P Prasuna Rani and R Lakshmi Pathy

Abstract:
The field study was conducted in Agricultural college farm, Bapatla, Andhra Pradesh to study the influence of biochar on soil properties and yield of maize (sugar cane-var. sugar 75) during kharif season of 2014-15 with seven treatments viz., control (no fertilizers) (T₁), RDF (T₂), RDF+Azophos (T₃), 75% RDF+biochar @ 5 t ha^-1 (T₄),75% RDF+biochar @ 5 t ha^-1+Azophos (T₅), 75% RDF+FYM @ 5 t ha^-1 (T₆), 75% RDF+FYM @ 5 t ha^-1+ Azophos (T₇) in Randomised Block Design (RBD). Integrated application of organics and inorganics showed numerically proximate values with the treatments supplied with RDF in N, P, K contents. Availability of Ca, Mg and Mn was maximum in treatments incorporated with biochar and were found significantly superior to rest of the treatments. Iron, zinc and copper contents not differed significantly by imposed treatments, however numerically slight decrease was observed in Fe and Zn contents of biochar treatments.