Abstract:

"3414" soil protocol was used in this experiment. Comparing the yield for different sesame population under different ratio of nitrogen, phosphorus, and potassium, and selecting the best ratio for nitrogen, phosphorus, and potassium for the optimal yield, in this way, the theoretical basis of fertilization are offered for the production of sesame in the future. The amount of nitrogen, phosphorus, and potassium from soil were N 82.95 kg/hm2, P2O5 30.75 kg/hm2, and K2O 69.15 kg/hm2. The utilization rate of fertilizer were N 13.46%, P2O5 19.34%, and K2O 23.56%; Sesame were at the maximum economic yield and efficiency when fertilizer N was 120 kg/hm2, P2O5 was 45 kg/hm2 and K2O was 120 kg/hm2.