Influence of Integrated Nutrient Management Practices on Yield and Uptake of Nutrientsin Rice (Oryza sativa L.)

Abstract

The present investigation entitled “Influence of integrated nutrient management practices on yield and nutrient uptake of rice (Oryza sativa L.)”was conducted at farmer’s field, Devaryamjal village, near Hakimpet, Rangareddy district, Telangana during Kharif season 2014 to evaluate the use of inorganic fertilizers and organic manures on growth & yield.The experiment was laid out in randomized block design (RBD) with 11 treatments, each replicated 3 times. The treatments consisted of control (T₁), 100% RDFN (T₂), 75% RDFN + 25% N through VC, PM and FYM (T₃, T₆, T₉), 50% RDFN + 50% N through VC, PM and FYM (T₄, T₇, T₁₀), 100% RDN through VC, PM and FYM (T₅, T₈, T₁₁).  Among the different INM treatments maximum grain yield of (54.9 q ha^-1) and straw yield (68.3 q ha^-1)was recorded with treatment T₃ (75% RDFN + 25% N through VC) which was closely followed by treatmentT₆ (75% RDFN + 25% N through PM) with grain and straw yield of (52.9 q ha^-1) and (66.3 q ha^-1) respectively. Highest uptake of nitrogen (90.2 Kg ha^-1), phosphorus (26.8 Kg ha^-1) and potassium (100.4 Kg ha^-1) was recorded with Treatment T₃. Treatment T₁ – Control (No RDFN) recorded lowest grain yield,straw yield and nutrient uptake.