磷酸二铵在水稻和甘蔗上的应用效应

Effects of applying the diammonium phosphate on rice and sugarcane

在等量氮磷钾养分条件下，进行水稻及甘蔗施用磷酸二铵、普钙和钙镁磷肥大田肥效对比试验。结果表明：与对照相比，不同施肥处理利于改善协调产量构成因素，促进水稻和甘蔗的生长发育，从而提高产量，但磷酸二铵的肥效优于普钙和钙镁磷肥，产量增长水稻12．16％～14．35％，甘蔗5．54％～6．49％；水稻和甘蔗的投入产出比分别为1：3．50和1：1．45，明显提高经济效益。

Under applying the same dosages of nitrogen, phosphorus and potassium nutrients conditions, the effects of diammonium phosphate, calcium superphosphate and fused calcium magnesium phosphate on rice and sugarcane were compared in field. The results showed that as compared to the control, different fertilizer treatments were in favor of improving the yield components, promoting the growth and development of rice and sugarcane, further increasing the yield. In all fertilizer treatments, the effects of diammonium phosphate was better than calcium superphosphate and fused calcium magnesium phosphate, the yield of rice and sugarcane increased by 12.16%-14.35% and 12.16%-14.35%, respectively; and the ratio of input to output of rice and sugarcane was 1 ： 3.50 and 1 ： 1.45, respectively. The economic benefits were increased obviously.