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在人工栽培设施条件下,鲜切花极易遭受病虫害危害而造成产量和质量损失。根据网络原理,针对温室、大棚等设施内气流较为稳定、种植床分布规则等特点,通过药液集中稀释加压、高压管网分区排列、小孔径喷头分层立体多点定位等系统单元,研制成可自动调压,任意接驳的网络式农药细雾立体撒布系统。当撒布单元平移速度V=0.2m/s、喷片孔径=0.8mm、系统工作压力P=0.3MPa时,其2m处的雾粒直径均小于50μm;垂直高度1m处的叶片正面和背面捕获的雾粒密度分别达到44.0个/cm2和20.5个/cm2。与长江10-A型手动药械相比,其雾粒直径缩小近4倍,叶片正、背面捕获的平均雾滴密度分别增加4.8倍和5.6倍,工作效率则提高了10多倍。
Under conditions of artificial cultivation facilities, fresh cut flowers are extremely vulnerable to pests and diseases and result in loss of production and quality. According to the network principle, aiming at the characteristics of relatively stable air flow in the greenhouse, greenhouse and other facilities, the distribution rules of planting beds, etc., the system unit is concentrated and concentrated by chemical liquid concentration, sub-layer multi-point positioning of small aperture nozzles and other system units Into the automatic voltage regulator, any connection to the network of pesticides fine mist three-dimensional spreading system. When the spreading velocity of spreading unit V = 0.2m / s, the orifice diameter = 0.8mm, the system working pressure P = 0.3MPa, the diameter of the fog particles at 2m is less than 50μm; the height of the blade at the vertical height of 1m And the density of fog particles captured on the back were 44.0 and 20 cm2 / cm2, respectively. Compared with the Yangtze River 10-A manual drugstore, the fog particle diameter reduced by nearly 4 times, the positive and the back captured the average droplet density increased by 4.8 times and 5.6 times, respectively, and work efficiency increased by 10 times .