Vol. 11, Issue 7 (2022)

Author(s):
Sonamati Neti, RS Sidar, VK Singh and Divyanshi Yadav

Abstract:
The present investigation entiled “Effect of integrated nutrient management on rice (Oryza sativa L.) yield under Surguja district” was conducted at Research Station, Ajirma, Ambikapur, Chattishgarh during kharif season 2021-22. The experimental, consisted of eight treatment, was laid out in Randomized Block Design, where each treatment was Replication three. Revealed that various observations on growth characteristics, including plant height, number of tillers hill^-1, and dry matter production (gm^-2), the crop growth rate was significantly greater. The grain and straw yields of the rice crop were noted, including panicle length (cm), number of grains panicle^-1, test weight (g), etc. Among different INM treatments, application of 50% RDF + 50% N through GLM to rice produced maximum grain yield (44.90 q ha^-1), closely followed by 100% RDF (43.66 ha^-1). The INM treatments led to record significantly higher grain yield than 100% RDF. Other INM treatments viz. 50% RDF + 50% N through FYM (43.56 q ha^-1), 75% RDF + 25% N through FYM (40.20) ha^-1), and 75% RDF + 25% N through GLM (40.56 q ha^-1) gave lesser yields in terms of grain than100% RDF. Application of 50% RDF + 50% N through green leaf manure followed by 100% NPK fetched maximum NMR (56201 Rs. ha^-1) with the B:C ratio (2.32), which was at par to 50% + 50% N GLM (57353.8 Rs. ha^-1) with B:C ratio (2.33). The interaction of FYM in place of green leaf manure was equally good with regards to NMR and B:C ratio.