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目前生产上常用的喷雾器是552——丙型和工农——17型手动喷雾器。由于喷头上的喷片孔径较大(1.3mm),所以使用药液量大(一般每亩地需要药液100斤以上),工效低,一人一天仅能喷3～4亩。为解决这一问题,去年我们在防治青椒、甘蓝和大白菜等病虫害时,应用北京农业大学新研制的孔径为0.7mm的喷片,取得了明显效果。其特点:一是需水量少,防治1亩菜田药液量只需7～20斤。二是提高工效显著,一人一天可防治20～30亩,比过去提高工效8～10倍。三是防治效果好,采用新型喷片,配制的药液浓度高,喷出后雾化程度高,液滴覆盖率高。
Currently used in the production of spray is 552 - C and workers and peasants - 17 type manual sprayer. As the jet nozzle on the larger aperture (1.3mm), so use a large amount of liquid (generally need more than 100 pounds per acre liquid medicine), low efficiency, one person a day can only spray 3 ~ 4 acres. In order to solve this problem, last year we used prevention and control of green peppers, cabbage and cabbage and other pests and diseases, the application of Beijing Agricultural University newly developed aperture of 0.7mm spray tablets, and achieved remarkable results. Its characteristics: First, less water, prevention and control of 1 acre of liquid field only 7 to 20 pounds. The second is to improve the work efficiency significantly, one day to prevent and control 20 to 30 acres, 8 to 10 times more efficient than in the past. Third, the prevention and treatment effect is good, the use of new spray tablets, the preparation of the liquid concentration, high degree of atomization after spraying, droplet coverage.