水肥一体化滴灌和地布覆盖对木薯生长及产量的影响  

Effects of Drip Fertigation under Plastic Film Mulching on Growth and Yield of Cassava

作　　者：韦云东 郑华[1] 李军[1] 徐钏 盘欢[1] 罗燕春[1] 周时艺 WEI Yundong;ZHENG Hua;LI Jun;XU Chuan;PAN Huan;LUO Yanchun;ZHOU Shiyi(Guangxi Subtropical Crops Research Institute/Guangxi Cassava 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/广西壮族自治区木薯研究所,广西南宁530001

出　　处：《农业研究与应用》2020年第2期13-17,共5页Agricultural Research and Application

基　　金：国家重点研发计划专项资助(2018YFD0201100);食用糯性木薯新品种桂热9号的中试和开发利用(桂科AB18221046);国家现代农业产业技术体系建设专项资金资助(CARS-11);基于水肥一体化的木薯水肥耦合效应研究(No.桂热研201806);中微量元素肥料对木薯生长及养分吸收的影响(No.桂热研201705)。

摘　　要：本文通过田间试验,研究了水肥一体化滴灌和地布覆盖对木薯生长及产量的影响。结果表明,地布覆盖可以促进木薯植株生长并有效提高木薯鲜薯产量及淀粉含量,还可以控制木薯地杂草生长。播种期田间土壤水分含量较低时,适当灌溉可以有效提高木薯产量,水肥一体化+地布覆盖可以在减少化肥施用量的前提下促进木薯植株生长并提高木薯鲜薯产量和淀粉产量,且化肥减量25%(N75 kg/hm^2、P2O537.5 kg/hm^2、K2O 75 kg/hm^2)效果最好,鲜薯产量最高提高30.0%(T12),淀粉产量最高提高30.3%。由此可见,水肥一体化滴灌+地布覆盖是增加木薯种植效益切实有效的措施之一。Studied the effect of drip fertigation under plastic film mulching on the growth and yield of cassava by field experiment.Results showed that during sowing period,drip fertigation under plastic film mulching with less chemical fertilizer can promote the growth of cassava plants and effective ly improve the yield of fresh cassava and starch,and also control the growth of weeds in cassava field.When chemical fertilizer was reduced by 25%(N75 kg/hm^2、P2O537.5 kg/hm^2、K2O 75 kg/hm^2),the yield of fresh root and starch of T12 increased by 30.0%and 30.3%,respectively.So drip fertigation under plastic film mulching is an effective measure to increase the benefit of cassava production.

关 键 词：地布覆盖 滴灌 水肥一体化 木薯 产量 

分 类 号：S275.6[农业科学—农业水土工程] S533[农业科学—农业工程]