论文部分内容阅读
超低容量(ULV)及超低剂量(ULD)是农药喷雾发展的一种新技术。即用一个特殊高效的喷雾器,将极少的药液——为常用量的1/50—1/500(每亩喷药80—300毫升),分散成直径为50—100微米的细小雾粒,均匀地密布在茎叶表面上,有效地发挥防治病虫害的作用。低用量喷雾技术早在1930年就有人试探过,到五十年代已在飞机防治上开始采用,后来又进一步发展成超低容量喷雾技术。目前在日本、美国、
Ultra-low-volume (ULV) and ultra-low-dose (ULD) are new technologies for the development of pesticide sprays. That is, using a special and efficient sprayer, disperse tiny mist particles with a diameter of 50-100 micrometers into tiny amounts of liquid - usually 1 / 50-1 / 500 (80-300 ml per mu) , Evenly covered in the stem and leaf surface, effectively play a role in pest control. Low-volume spray technology was first tried before in 1930 and was used in aircraft control in the 1950s and later developed into an ultra-low capacity spray technology. Currently in Japan, the United States,