涂层尿素在甘蔗生产中的应用效果及其推广前景  

Application Effects and Extension Perspective of Coated Urea for Sugarcane Production

作　　者：李玉潜[1] 谭中文[1] 

机构地区：[1]华南农业大学甘蔗研究室

出　　处：《甘蔗糖业》1993年第6期13-17,共5页Sugarcane and Canesugar

摘　　要：试验示范结果表明:涂层尿素对甘蔗平均每亩增产456.9kg,增产率7.2％,差异达极显水平;蔗茎蔗糖分增加0.35％(绝对值);氮素利用率提高7.94％,可节省尿素用量15％;将涂层液与尿素随伴随施的方法与工厂成品比轻效果相近;折算农业净产值增加52.8元/亩,工业效益增加10.5元/吨蔗,因而涂层尿素的推广和涂层液的进一步开发利用是有前景的。The experimental and demonstration rasults showed that the cane yield was increased 456.9kg/mu,namely 7.2% and the sucrose content of cane was increased 0.35% (absolute value)by application of coated urea.The cane yield increase reached a significant difference at 0.05 level Moreover,the efficiency of nitrogen utilized by plant was increased 7.94% and as the result, the application amount of urea could be saved 15%.Similar result was abtained from applying the hand coated urea which was ordinary urea coated with coating solution before application as the alternative to the commercial coated urea.The profits in agriculture and sugar procossivg were 52.8 yuan per mu and 10.5 yuan per ton of cane respectively.

关 键 词：甘蔗生产 蔗糖分 涂层技术 氮素利用率 试验示范结果 蔗茎产量 农业净产值 蔗区 遂溪 肥料性质 

分 类 号：TS24[轻工技术与工程—制糖工程]