Correlation Studies of Growth and Yield Attributes with Grain Yield of Scented Rice as Influenced by Nano Urea in Combination with Inorganic Fertilizer and Organic Manure

Abstract

Appropriate nitrogen management increases the yield of rice. Both excess and low nitrogen content leads to lower the production of rice. A large amount of nitrogen causes soil fertility loss and thus, the yield. Nano urea is a nano technology that provides nitrogen required for crop at critical stages. Keeping these in mind a research experiment was carried out to assess the correlation studies of growth and yield attributes with grain yield of scented rice as influenced by Nano urea in combination with inorganic fertilizer and organic manure at Instructional Farm Unit, Krishi Nagar, JNKVV, Jabalpur during the rainy season of 2022 and 2023. Ten treatment combinations were laid out in randomized block design with four replications. The results revealed that all the growth parameters were observed a strong and positive correlation with grain yield of rice. The regression analysis showed a strong positive linear relationship with the growth parameters viz., plant height (95% and 97%, respectively) and no. of tillers hill-1 (94% and 91%, respectively), yield attributes viz., panicle length (94% and 95%, respectively) and total no. of grains panicle-1 (97% and 95%, respectively) and grain yield of rice. This concludes that all the growth and yield attributes positively contributed towards gaining higher yield.