Influence of integrated plant nutrition system on growth, development and yield of rice in rice-wheat cropping system

Long-term use of organic and chemical inputs has a tremendous impact on growth, development and yield of crop. Farm yard manure (FYM), wheat cut straw (WCS) and green manure (GM) were used for many years old rice (Oryza sativa L.) -wheat (Triticum aestivum L.) cropping system to determine various effects on growth, development and yield. Application of chemical fertilizers alone or in combination with organic manures found increased grain yield of rice significantly over control. Highest number of shoots/m2 and plant height (cm) of rice were recorded under (T6) where 50% NPK through fertilizers and 50% N through FYM to rice and 100% NPK through fertilizers to wheat were applied. Heading in rice was earliest in T6 (50% NPK and 50% N (FYM) to rice with 100% NPK to wheat) and was too late in control (T1) during both the years. Crop maturity was significantly late under T1 (control) when no fertilizers and manures were applied. On an average in rice where 50% NPK in combination with 50% N (FYM) was applied to rice was found to be the best treatment for getting higher productivity and profitability.