Effect of Calcium, Magnesium and Boron on Rice and their residual effects on Groundnut

The study was carried out at Zonal Agricultural Research Station (ZARS) Brahmavar, Udupi district. To know the effect of Calcium, Magnesium (Mg) and Boron (B) on yield components rice also their residual groundnut. geographical position area is between 74º45’ to 74º46' East longitude 13º24'45’’ 13º25’30’’ North latitude an altitude 10 meters above mean sea level. Field experiments were established using three levels Ca (0, 400 & 800 kg ha_1), two Mg (0 120 ha_1) foliar spray boron 0.5 %) combined give 12 treatments. Groundnut crop grown as a in same plots which has been raised previous season, for this recommended dose fertilizer applied along with that borax sprayed 45th day after sowing. Results showed different combinations Ca-Mg-B significantly influenced rice. highest recorded from Ca, B kg, 550 g ha-1 respectively. lowest control plot (Ca0-Mg0-B0). In case groundnut found respectively treatment limed previously cultivated plot.