宿根蔗一次性施用专用缓释肥的效果

Efficacy of one-time application of special slow-release fertilizer on ratoon sugarcane

该研究的目的是探讨一次性施用甘蔗专用缓释肥对宿根蔗产量及品质的影响,为生产推广甘蔗一次性施肥提供参考。该试验设置3个处理,处理A为一次性施用甘蔗专用缓释肥(N∶P∶K=20∶7∶15)1.875 t/hm^(2);处理B为常规施肥,施用复合肥(N∶P∶K=15∶15∶15)2.475 t/hm^(2);CK(空白对照)不施肥。调查各处理宿根蔗的农艺性状、产量,比较其经济效益。结果表明,一次性施用甘蔗专用缓释肥的宿根蔗产量比常规施肥、CK分别增产4.96 t/hm^(2)、24.64 t/hm^(2),比常规施肥、CK分别增收4939.3元/hm^(2)、6812.8元/hm^(2)。根据该试验的结果,宿根蔗一次性施用专用缓释肥,可增加产量,减少施肥量和施肥次数,降低施肥成本,增加经济收入,实现节本增效。

To investigate the effect of one-time application of slow-release fertilizer on cane yield and quality of sugarcane,and to provide a reference for extending one-time fertilization in sugarcane production,three treatments were set:treatment A,applying one-time slow-release fertilizer(N∶P∶K=20∶7∶15)1.875 t/hm^(2);treatment B,conventional fertilization applying complex fertilizer(N∶P∶K=15∶15∶15)2.475 t/hm^(2);and CK,applying no fertilizer.The agronomic characters and cane yield of sugarcane were investigated and economic benefits were compared.The results showed that the cane yield increased by 4.96 t/hm^(2) and 24.64 t/hm^(2),respectively,and the economic benefit increased by 4939.3 yuan/hm^(2) and 6812.8 yuan/hm^(2),respectively,in the one-time slow-release fertilizer treatment compared with the conventional fertilization treatment and CK.Based on the results of this experiment,one-time application of special slow release fertilizer could increase cane yield,reduce fertilizer application amount and fertilization times,reduce fertilizer cost,increase economic income,and achieve cost saving and efficiency increasing.