纳米改性塑料防虫网在夏白菜上的应用  

Application of Nano-plastic Modified Insect-proof Net in Summer Cabbage

作　　者：董卫国 钟有成 龚碧涯[2] 肖伏莲[2] 刘学勇 DONG Wei-guo;ZHONG You-cheng;GONG Bi-ya;XIAO Fu-lian;LIU Xue-yong(Luxi County Plant Protection and Inspection Station,Luxi 416100,PRC;Hunan Institute of Horticultural,Changsha 410125,PRC;Luxi County Tobacco Companies,Luxi 416100,PRC)

机构地区：[1]泸溪县植保植检站,湖南泸溪416100 [2]湖南省园艺研究所,湖南长沙410125 [3]泸溪县烟草公司,湖南泸溪416100

出　　处：《湖南农业科学》2018年第10期70-73,共4页Hunan Agricultural Sciences

基　　金：国家重点研发计划(2017YFD0202000)

摘　　要：为了探索纳米改性塑料作为防虫网材质的可行性,试验通过网棚栽培夏白菜对比研究了普通防虫网和纳米改性塑料防虫网覆盖栽培对大棚小气候、夏白菜的生长及主要害虫斜纹夜蛾Spodoptera litura(Fabricius)防效的影响。结果表明:纳米改性塑料防虫网内夏白菜的株幅、莲座叶数、球高、球横径、单球重均优于普通防虫网,夏白菜产量比普通防虫网覆盖的增加了33.3%;纳米改性塑料防虫网的累积卵块数仅为普通防虫网累积卵块数的55.4%,且孵化率为0;而普通防虫网上孵化率较高,且孵化出的幼虫均能成活。因此,纳米改性塑料防虫网覆盖可以显著提高夏白菜的产量,防止斜纹夜蛾对夏白菜的危害。The cultural experiment of summer cabbage under nano-plastic modified insect-proof net （NPMIN） was conducted in respects of humidity variation, growth status and the control effect to Spodoptera litura, using the common insect-proof net （CIN） as the comparison. The results showed that the plant width, leaf number, corm height, corm diameter and corm weight of the summer cabbage under the NPMIN were better, especially yield per acre was 33.3% higher than those under CIN. In contrast, the number of S.litura egg under the NPMIN was only 55.4% of that under CIN, and the hatching rate of the egg under NPMIN was 0, while CIN was 100%. Whence, covering with the NPMIN could boost the summer cabbage yield signifcantly, and prevent S.litura from damage effectively.

关 键 词：纳米 防虫网 夏白菜 产量 斜纹夜蛾 防效 

分 类 号：S626.4[农业科学—园艺学]