Vol. 12, Issue 3 (2023)

Author(s):
Kumar Dewangan, Rakesh Banwasi and Gourav Kumar Jatav

Abstract:
An experiment was conducted at the farmer’s field of Dallirajhara, District-Balod (C.G.) in the kharif season of 2021 to assess the performance of rice crop under different nutrient management practices at clay loam soil. The experiment consisting seven different nutrients management practices and laid out in randomized block design. The results of experiment revealed that the soil test based STCR dose applied for 60 q ha^-1 yield of rice successfully achieved the target under the acceptable limit of 10% ± deviation. Due to balanced fertilization for a targeted yield, STCR based treatment recorded significantly superior grain yield (57.40 q ha^-1) over 100 percent RDF (48.90 q ha^-1) and showed significant effect on plant height, numbers of effective tillers, panicle length and number of grains per panicle of rice. STCR recorded maximum 17.4% higher grain yield as compared to RDF. Integrated nutrient management practices with 75% RDF + Vermi-compost @ 5 t ha^-1 and 75% RDF + Super-compost @ 5 t ha^-1 were respectively yielded 53.37 and 51.90 q ha^-1 grains and found at par with STCR dose. Application of Vermicompost and super-compost successfully saved the 25% of chemical fertilizer and produced at par yield over the RDF. Addition of zinc @ 5 kg ha^-1 with 100% RDF was not significantly affected the growth and yield of rice due to the sufficient level of zinc in the soil. Among all the treatments, control was recorded significantly lowest grain yield (27.97 q ha^-1). Test weight of grains was not significantly affected by various treatments. The benefit and cost ratio was also found highest (1.71) in the STCR.