不同施肥次数对甘蔗产量及蔗糖分的影响  

Different fertilization times' impact on sugarcane yield and sucrose content

作　　者：许树宁[1] 谭裕模[2] 黎焕光[1] 谭芳[1] 王伦旺[1] 周源[3] 

机构地区：[1]广西农科院甘蔗研究所,南宁530007 [2]广西农科院农业资源与环境研究所,南宁530007 [3]广西科技厅,南宁530012

出　　处：《广西农学报》2012年第5期20-23,共4页Journal of Guangxi Agriculture

基　　金：广西甘蔗研究所基本科研业务专项(G2010015)

摘　　要：本试验以甘蔗专用复混肥为供试肥料,在施肥量相同的情况下设4个不同施肥次数处理,采用地膜覆盖栽培,探讨不同施肥次数对甘蔗产量和蔗糖分的影响。结果表明,二次施肥处理(B),比一次施肥蔗产量增长6.6%,差异达5%显著水平;含糖量增长11.5%,差异达1%显著水平;较三次施肥(C)和四次施肥(D)等常规处理蔗产量和含糖量均略有增长,但差异不显著。甘蔗二次施肥法可得到常规三次和四次施肥的蔗产量和含糖量,但较常规施肥方法减少田间作业次数,节省劳力,提高经济效益,是一项简单易行、省工、降低成本的栽培方法,是作物栽培的发展方向。This experiment is based on the application of sugarcane compound fertilizer with four fertilization time treatments in same application amount to explore different fertilization times＇impact on sugarcane yield and sucrose content. The results show that in two time fertilization （treatment B）, the yield is higher than once fertilization by 6.6%, the difference reaches to 5% remarkable level, the sucrose content is higher by 11.5%, the difference reaches to 1% remarkable level; compared with three times fertilization （treatment C） and four times fertilization （treatment D）, which are conventional fertilizations, the yields and sucrose contents are increasing slightly, but not reaching to remarkable levels. Treatment B has the similar yield and sucrose content of treatment C and D, but less field operations, labor-saving and higher economic benefits so that it is a easy-operation, labor-saving and lowcost cultivation measure and development direction of crop cultivation technology.

关 键 词：甘蔗 施肥次数 蔗产量 蔗糖分 

分 类 号：S571[农业科学—作物学]