Residual Effect of Rice Residue, FYM and Fertilizers on Growth, Yield and Quality of Summer Moong (Vigna radiata L.) in Rice-Potato-Summer Moong Cropping System

To work out the residual effect of rice residue, FYM and fertilizers on summer moong (Vigna radiate L.) in Rice-potato- summer moong cropping system.

The present study was carried out at Research Farm, Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab. The experiment was laid out in factorial randomized block design with two factors. Factor A contains five nutrient management treatments in potato (Rice residue+ 125 % NPK + 25 t ha^-1 FYM, Rice residue + 100% NPK + 25 t ha^-1 FYM, Rice residue+ 75% NPK + 25 t ha^-1 FYM, Rice residue + 125% NPK + 0 t ha^-1 FYM and Without rice residue + 100% NPK+ 50 t ha^-1 FYM) and factor B contains three nitrogen levels in summer moong (0 kg ha^-1 N, 6.25 kg ha^-1 N and 12.5 kg ha^-1 N).

The plant height, branches, dry matter accumulation, LAI and chlorophyll content index were significantly affected with the treatments applied to preceding potato crop. The application of rice residue+ 125% NPK + 25 t ha^-1 FYM to potato crop resulted significantly higher plant height, branches, dry matter accumulation, LAI and chlorophyll content index of moong crop as compared to rice residue + 75% NPK + 25 t ha^-1 FYM and rice residue+ 125% NPK + 0 t ha^-1 FYM while at par to rice residue+ 100% NPK + 25 t ha^-1 FYM and without rice residue + 100 % NPK+ 50 t ha^-1 FYM. The significantly higher biometric parameters were observed with 12.5 kg ha^-1 N which was significantly higher than the 0 and 6.25 5 kg ha^-1 N. The application of rice residue+ 125% NPK + 25 t ha^-1 FYM to potato crop resulted significantly higher yield and yield attributing characters as compared to rice residue+ 75% NPK + 25 t ha^-1 FYM and rice residue+ 125% NPK + 0 t ha^-1 FYM while at par to rice residue + 100% NPK + 25 t ha^-1 FYM and without rice residue + 100% NPK 50 t ha^-1 FYM. The application of higher dose of nitrogen @ 12 kg ha^-1 also significantly increased the yield and yield attributing characters as compared to lower doses of summer moong. The nutrients uptake (N, P and K) was also maximum with rice residue+ 125% NPK + 25 t ha^-1 FYM which was at par to rice residue + 100% NPK + 25 t ha^-1 FYM and without rice residue + 100 % NPK + 50 t ha^-1 FYM while significantly higher than other treatment. The application of higher dose of nitrogen @ 12 kg ha^-1 in summer moong also significantly increased the nutrient uptake and protein content as compared to lower doses.