Author(s):

Aditya Kumar, Sanjay Kumar Shahi, Abhinandan Singh and Chandrashekhar

Abstract: A field experiment was conducted during 2016-17 to evaluate the influence of integrated use of NPKZn, FYM and bio-fertilizers on soil properties and performance of rice. The treatments were control (T₁), 50% NPK Zn + FYM (10 t ha^-1) (T₂), 100% NPK Zn (T₃), 50% NPK Zn + Bio-fertilizer (PSB+BGA) + FYM (10 t ha^-1) (T₄), 150% NPK Zn (T₅) and FYM (10 t ha^-1) + Bio-fertilizer (PSB+BGA) (T₆). Application of 50% NPK Zn + Bio-fertilizer (PSB+BGA) + FYM (10 t ha^-1) i.e. T₄ significantly increased the growth and yield as well as soil fertility status as compared to chemical fertilizers alone. Significantly higher plant height, number of tillers plant^-1, grain and straw yield of rice and soil properties in terms of organic carbon, available NPK and S were obtained with application of 50% NPK Zn + Bio-fertilizer (PSB+BGA) + FYM (10 t ha^-1) (T₄) in comparison to other treatments. Significantly higher NPKS uptake was also observed with application of 50% NPK Zn + Bio-fertilizer (PSB+BGA) + FYM (10 t ha^-1) (T₄). This experiment proved the superiority of integration between chemical fertilizer and bio-fertilizer over chemical fertilizer alone at all level of fertility.

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