Effect of organic manure, fertilizer level and biofertilizers on soil nutrients balance in maize (Zea mays L.).

摘要

An experiment was conducted in Bilwara, Rajasthan, India, during the kharif of 2001 and 2002 to study the effects of FYM [farmyard manure], 90 kg N + 30 kg P + 30 kg K/ha (50, 75 or 100%), Azotobacter and Azotobacter + phosphate solubilizing bacteria (PSB) on the performance of maize (cv. Navjot). The application of fertilizers improved the negative balance in N, P and K by 14.43, 4.31 and 9.91 kg/ha compared to the control, respectively. The N, P and K status of the soil improved by 2.78, 4.31 and 8.56 kg/ha with the soil application of 10 t FYM/ha, by 0.36, 4.75 and 11.23 kg/ha with the application of 100% of the recommended fertilizer rates, and by 4.76, 2.13 and 1.69 kg/ha with the seed inoculation of Azotobacter + PSB, respectively, over the lower levels of these fertilizers.