Impact of Organic and Inorganic Nutrient Management on Yield in Rice Under Sugarcane Based Cropping System in Calciorthants

Experiment was conducted on new area farm of Samastipur district to study the effect of integrated nutrient management in rice-sugarcane-sugarcane ratoon-1-sugarcane ratoon-II -moong cropping system on seed productionof rice.There is significant increase in yields of grain and straw by increasing the levels of nitrogen alone or in combination with different organics from 2.54 to 3.70 ton per hectare and 4.01 to 6.03 ton per hectare respectively.The maximum increase in yield of grain and straw of rice was recorded with the application of recommended dose of NPK along with green manuring.The combined application of organic and inorganic fertilizers gives better result as compared to sole application of inorganic fertilizer.Nutrients uptake by rice was also recorded highest under 100 % NPK + green manure as moong treatment.The nutrients status of soil was improved at higher level of nitrogen and the effect was more noticeable when nitrogen was applied in conjoint with organic manure.