Effects of variety and integrated nutrient management practices on yield and productivity of rice (Oryza sativa L.)-rapeseed (Brassica campestris L.) cropping sequence

The effect of variety and integrated nutrient management in rice-rapeseed cropping sequence was studied. Both the varieties, Vandana and IR 6008–32 were at par with respect to grain and straw yields. The nutrient management practices had a significant effect on developmental phases of upland rice. The crop flowered and matured early due to application of recommended dose of fertilizer (RBD) + Single super phosphate incubated with FYM (1:2) + 5 t FYM ha-1 with highest grain (2.60 t ha-1) and straw (6.90 t ha-1) yields. The soil fertility status with respect to pH, organic carbon and total nitrogen were affected significantly by different nutrient management practices in rice. It had a significant effect on the performance of succeeding rapeseed crop (Var. TS-38). Highest seed (0.64 t ha-1) and stover yield (1.32 t ha-1) was recorded with application of 50% RDF + 5 t FYM ha-1, which was at par with application of RDF + SSP incubated with FYM+ 5 t FYM ha-1. Number of primary branches plant-1 and number of siliqua plant-1 were significantly affected by above treatments.