不同氮磷钾配比对木薯桂热5号的影响  

Effects on different ratios of“NPK”on cassava variety GR5

作　　者：罗燕春[1] 陈蕊蕊 周时艺 文峰[1] 卢赛清[1] 韦云东 盘欢[1] LUO Yan-chun;CHEN Rui-rui;ZHOU Shi-yi;WEN Feng;LU Sai-qing;WEI Yun-dong;PAN Huan(Guangxi Subtropical Crops Research Institute,Nanning 530001,China)

机构地区：[1]广西壮族自治区亚热带作物研究所,南宁530001

出　　处：《湖北农业科学》2022年第14期28-30,共3页Hubei Agricultural Sciences

基　　金：广西科技计划项目(桂科AB21196071);现代农业产业技术体系建设专项“国家木薯产业技术体系土肥水管理岗位”(CARS-11-GXLJ);广西农业科学院基本科研业务专项资助项目(桂农科2021YT150)。

摘　　要：采用单因子随机区组试验设计探索木薯桂热5号适宜施肥水平。结果表明,100-50-0氮磷钾配比可极显著提高木薯桂热5号的株高(P<0.01)、显著增大种茎的节间距和叶片数(P<0.05),并极显著提高鲜薯产量和淀粉产量(P<0.01);100-50-0是桂热5号最优施肥处理;桂热5号是一个对钾肥需要量较少的耐贫瘠的品种。A single factor randomized block experiment design was used to explore the suitable fertilization level of cassava variety GR5.The results showed that the plant height of cassava GR5 was significantly increased(P<0.01),and the internode spacing of stem and leaf number were significantly increased(P<0.05),and the yield and the starch content of fresh tuber root were significantly increased(P<0.01)under the ratio of 100-50-0“NPK”treatment;100-50-0 was the best fertilization treatment for GR5;GR5 was a barren-tolerant variety that required less potassium fertilizer.

关 键 词：木薯 桂热5号 氮磷钾配比 

分 类 号：S533[农业科学—作物学]