喷施沼液对棉花新陆早13号蚜虫数量动态的影响  

Impact of Spraying Biogas Slurry for on the Population Dynamics of Aphid with Xinluzao 13 of Cotton in Xinjiang

作　　者：王春华[1] 徐文修[1] 陈明[1] 余晓丽[1] 丁博[1] 张佩玲[1] 

机构地区：[1]新疆农业大学农学院,乌鲁木齐830052

出　　处：《新疆农业大学学报》2009年第2期45-48,共4页Journal of Xinjiang Agricultural University

基　　金：新疆维吾尔自治区教育厅项目(XJEDU2006I63);新疆维吾尔自治区攻关项目(2001BA507A-10);农业部公益性行业科研专项(nyhyzx07-005)

摘　　要：通过对棉花不同生长发育期喷施沼液、磷酸二氢钾和清水的研究,结果表明,早期喷施沼液和磷酸二氢钾均能不同程度的抑制田间虫口数量增长和蚜虫扩散,对蚜虫的虫口数量减弱作用可持续10 d左右。蚜虫迁入高峰期,喷施磷酸二氢钾对蚜虫迁入具有明显抑制作用,沼液的抑制作用相对较弱;蚜虫大发生期间不宜喷施沼液,沼液对叶片营养的改善有促进蚜虫虫口数量增加,延缓虫口数量减退的作用。Spraying cotton plant with biogas slurry,potassium dihydrogen phosphate and water in the dif- ferent cotton growing time. Early results showed that spraying biogas slurry and potassium dihydrogen phosphate can not inhibit the growth and the proliferation of the field population in different levels. The population of aphids could be decreased for about 10d. Spraying potassium dihydrogen phosphate has obvous inhibition effect on the aphids moving into the fields. Spraying biogas slurry could not significantly control the occurrence of aphids. As it could help aphids to be increased and delay its population decrea-sing.

关 键 词：棉花 沼液 虫口数量 百株蚜量 有蚜株率 

分 类 号：S474.3[农业科学—农业昆虫与害虫防治]