Abstract
A field experiment was conducted to see the effect of seven different combinations of N, P20S and K20 on "Red Ball" onion variety. All the combinations gave significantly higher yield compared to the control. Although maximum yield was obtained with the application of N, P20S and K20 @ 175, 100 and 300 kg ha-1 , respectively but it was statistically at par with all the other combinations. The application of N, P20S and K20 @ 85.5,50 and 150 kg ha! (half dose) gave yield very close to above treatment. However, very little or no response was observed with varying doses of potash beyond 150 kg ha-1
