Effect of Nitrogen, Phosphorus and Potash Fertilization on the Growth and Yield of Garlic

Trials were conducted with three levels each of N, P and K 0, 75 and 150 kg/ha of Nitrogen; 0, 125 and 250 kg/ha of phosphorus; and 0, 75 and 150 kg/ha of Potash in all 27 possible combinations at Chaubattia 2, 134 m A.S.L. 75 kg nitrogen per hectare exhibited its alround superiority in affecting height of the plant, number of leaves and diameter of the plant, size of bulb, number of cloves and yield of the bulb. Phosphorus at the rate of 250 kg/ha increased significantly the height, diameter of plant size of bulb and yield of bulb. Potassium had a mostly depressing effect on growth and yield of bulb. The combination of nitrogen and phosphorus had nonsignificant effect on the growth and yield of bulb, but increased the percent stand of the crop.

NK and PK has significant effect on height, diameter of plant, percent stand of the crop, and yield of bulb. The yied of bulb was significantly increased by the application of 75 kg N, 250 kg P₂O₅, and 75 kg K₂O/ha.