Maize (Zea mays) Yield Response to Application of Calcium, Magnesium and Boron on Acid Soil

The study was carried out at Zonal Agricultural Research Station, Gandhi Krishi Vigyan Kendra, University of Sciences, Bengaluru with maize as the test crop. GKVK is located in Eastern Dry Zone Karnataka situated 12° 58’ north latitude and 77° 35’ east longitude an altitude 930 m above mean sea level, annual rain fall 950 mm. Field experiment established using three levels Ca (0, 200 & 400 kg ha_1), two Mg (0 60 ha_1) foliar spray boron 0.5 %) combined to give 12 treatments. Results showed that soil pH, exch.Ca, base saturation increased application calcium magnesium. While exch. Aluminium content decreased due Mg. uptake all nutrients by increasing nutrient elements. There synergistic effect among them when either only were applied together or together. different combinations Ca-Mg-B significantly influenced yield components maize. highest recorded from Ca, B kg, 550 g ha-1 respectively. lowest control plot (Ca0-Mg0-B0).