Author(s): M Malo, A Ghosh, D Dutta and K Murmu

Abstract: A field experiment was conducted during kharif, 2016 in the experimental farm of Bidhan Chandra Krishi Viswavidyalaya to assess the effect of inorganic and bio-fertilizers on growth and yield of rice. The results revealed that the highest plant height, leaf area index, dry matter accumulation and crop growth rate were observed in 100% RDF (T₂) which was statistically at par with 75% recommended dose of NP + 100% RDK + Azotobacter chroococcum @ 5 kg ha^-1 (T₄). Similarly, T₂ treatment recorded the maximum panicle length (24.50 cm), number of panicles/hill (14.90), filled grains/panicle (127.00), test weight (20.10 g), grain and straw yield (5.66 t ha^-1 and 6.99 t ha^-1) and all these were at par with T₄. The benefit cost ratio (2.42) was same in T₂ and T₄ treatments, exhibiting better potential in improving crop growth and yield parameters of rice in new alluvial zone of West Bengal.