EFFECT OF PRUNING INTENSITIES AND DIFFERENT LEVELS OF FERTILIZERS ON JATROPHA CURCAS L. UNDER IRRIGATED CONDITION

摘要

The world continues to seek economically and environmentally sound alternatives to fossil fuel-based transportation of fuels and power. Energy crop Jatropha curcus L provide an attractive combination of high yield density, high net energy balances, low input requirements and has potential to be tailored for specific production and refining processes. Present study was conducted to evaluate the effect of pruning and fertilizer on growth and yield of Jatropha curcas L. There were three pruning intensities viz., P_0(No pruning), P_1(45 cm) and P_2(60 cm) and four levels of fertilizer viz., F_0 (No fertilizer), F_1 (60:60:60 g NPK plantF_2 (80:80:80 g NPK plant~(-1)) and F_3 (100:100:100 g NPK plant~(-1)). A clear decreasing trend was observed from F_3to F_0 in almost parameters under study. Interaction effect between intensities of pruning and levels of fertilizer was found non significant in all growth parameters of Jatropha curcus L. From this study the significant yield increased by P_2 (60 cm) pruning and F_3 (100:100:100 g NPK plant~(-1)) level of fertilizer gave best result forgetting higher yield and vegetative growth of Jatropha curcas L.