川楝素乳油在3种作物上的最佳喷雾条件  

Optimum Spray Condition of Toosendanin EC for Three Crops

作　　者：周一万 吴丽媛 张兴 冯俊涛 ZHOU Yiwan;WU Liyuan;ZHANG Xing;FENG Juntao(Research&Development Center of Biorational Pesticides,Northwest A&F University,Yangling,Shaanxi 712100,China;Shannxi Center for Engineering and Technology Research of Biopesticides,Yangling,Shaanxi 712100,China)

机构地区：[1]西北农林科技大学无公害农药研究服务中心,陕西杨凌712100 [2]陕西省生物农药工程技术研究中心,陕西杨凌712100

出　　处：《热带生物学报》2019年第3期249-257,共9页Journal of Tropical Biology

基　　金：国家自然科学基金项目(31471802)

摘　　要：为明确2%川楝素乳油在作物叶片上沉积量与喷雾条件的关系,笔者以小白菜(Brassica campestris L.ssp.chinensis Makino)、黄瓜(Cucumis sativus L.)和甘蓝(Brassica oleracea L.)为植物材料,2%川楝素乳油为供试药剂,采用单因素试验法和中心组合设计试验法,研究了雾滴大小、喷液量、药剂稀释倍数和喷头高度对2%川楝素乳油在3种作物上沉积量的影响。结果表明,在黄瓜和小白菜上喷施时,2%川楝素乳油的最佳喷雾条件为:雾滴VMD 215.3μm,喷药量406 L·hm^-2,稀释倍数为600,喷头高度为50 cm;在甘蓝上喷施时,2%川楝素乳油的最佳喷雾条件为:雾滴VMD 151.7μm,喷药量694 L·hm^-2,稀释倍数为600,喷头高度为70 cm。Pakchoi ( Brassica campestris L. ssp. chinensis Makino), cucumber ( Cucumis sativus L.) and cabbage ( Brassica oleracea L).were sprayed with 2% toosendanin EC to determine the relationship between toosendanin deposition on their leaves and spray conditions. Single-factor design and Center Composite Design (CCD) were arranged to analyze the effect of droplets size, spray volume, dilution ratio and sprinkler head height on toosendanin deposition on the leaves of three crops. The results show that the optimum spray conditions were droplets VMD 215.3μm, spray volume 406L/ha, dilution ratio 600 and sprinkler head height 50cm for cucumber and pakchoi leaves and droplets VMD151.7μm,spray volume 694L/ha, dilution ratio 600 and sprinkler head height 70cm for cabbage leaves.

关 键 词：川楝素乳油 沉积量 喷雾条件 

分 类 号：S482.1[农业科学—农药学]