Vol. 11, Issue 9 (2022)

Author(s):
Debasis Das, Sunil Kumar, Annie Poonam, Debarati Bhaduri, Rasmirekha Pattnaik, Omprakash Rajwade and Jitendra K Nayak

Abstract:
A field experiment was conducted during kharif 2017 at ICAR-National Rice Research Institute, Cuttack (Odisha) on “Effect of organic nutrient management on growth and yield attributes of rice (Oryza sativa L.) Cultivars under transplanted condition”. The soil was acidic in reaction and medium in fertility levels having available nitrogen, phosphorus and potassium content were low, high and medium, respectively. In experiment, treatments comprised of two cultivars (Ketekijoha and Padmini) in main plots and in sub plots with the eight organic management treatments that are control (T₁), FYM @ 12 t ha^-1 (T₂), azolla @ 2 t ha^-1 (T₃), green manuring @ 1.7 t ha^-1 (T₄), vermicompost @ 3.75 t ha^-1 (T₅), FYM @ 6 t ha^-1 + azolla @ 1 t ha^-1 (T₆), FYM @ 6 t ha^-1 + green manuring @ 0.85 t ha^-1 (T₇) and FYM @ 6 t ha^-1 + Vermicompost @ 1.9 t ha^-1 (T₈). The findings on growth parameters of rice viz. plant height, number of tillers hill^-1, leaf area index, dry matter accumulation were significantly increased with the application of FYM @ 6 t ha^-1 + Green manuring @ 0.85 t ha^-1 (T₇) as compared other organic nutrient management. As regards to yield attributes and yield, application of FYM @ 6 t ha^-1 + Green manuring @ 0.85 t ha^-1 (T₇) produced highest yield attributes like effective tillers, panicle weight, number of filled grains and test weight. Thus increase in yield attributes results in increased yield of rice crop. The increase in grain and straw yield of rice crop observed more significantly with the application from FYM @ 6 t ha^-1 + green manuring @ 0.85 t ha^-1 (T₇) as compared to application of other nutrient management.