为探明欧洲复合肥厂商联会提供的 N:P_2O_5:K_2O 分别为15:15:15、13:13:21和15:12:24等三种不同成份复合肥料对甘蔗产量和蔗糖份的效应,于1985年度在广东珠江三角洲冲积性水稻土和雷州半岛砖红壤蔗区进行了田间试验。结果表明:1、在两种不同土类蔗区施用上述三种复合肥科有显著的增产增糖效果,比多施50%氮而不施磷、钾肥处理增产蔗茎12.0～24.49%,提高早期蔗糖份0.35～0.97%(绝对值),增加的经济效益为1633.79～2588.31元/公顷;比施等量有效成份的单体氮磷钟肥配施处理略优,增产蔗茎4.5～6.7%,提高早期蔗糖份0.05～0.56%(绝对值),增加的经济效益为413.11～910.30元/公顷。2、在两种不同土类蔗区,施用上述三种复台肥料的效应无显著差异,但有不同表现。在水稻土蔗区,以 N:P_2O_5:K_2O=15:15:15复合肥较好;而在砖红壤蔗区,则以 N:P_2O_5:K_2O=15:12:24为优。 In order to find out the effect of compound fertilizers with three different compositions of N: P 2 O 5: K 2 O 15:15:15, 13:13:21 and 15:12:24 on the yield and sucrose content of sugarcane in European Fertilizer Manufacturers Association In 1985, field experiments were conducted in alluvial paddy soils of Pearl River Delta and sugarcane loamy areas in Leizhou Peninsula. The results showed as follows: 1. The application of the above three compound fertilizers in two different soil sugarcane fields had obvious effect of increasing yield and sugar content, which was more than applying 50% nitrogen and not applying phosphorus. Potassium fertilizer increased 12.0-24.49% The early sucrose content was 0.35 ~ 0.97% (absolute value), and the added economic benefit was 1633.79 ~ 2588.31 yuan / ha. Compared with the same amount of effective components, , Increase the early sucrose content of 0.05 ~ 0.56% (absolute value), increase the economic benefits of 413.11 ~ 910.30 yuan / hectare. There was no significant difference in the effects of applying the above three kinds of compound fertilizers in two different kinds of soil sugarcane fields, but different performance. In the sugarcane paddy field, N: P_2O_5: K_2O = 15: 15: 15 compound fertilizer is better, while in the red soil sugarcane field, N: P_2O_5: K_2O = 15: 12: 24 is the best.