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现在,农村使用手摇喷雾器相当普遍.长期以来都是使用1.3毫米孔径喷头片,每亩喷量都在50—100公斤,速度慢、效率低,往往因病虫害得不到及时防治而造成减产.改用孔径为0.7毫米喷片进行低容量喷雾,是施药技术的一项改进。从1985年开始,我们分别在防治小麦、谷子、蔬菜等病虫害时应用了这种小孔径喷片,取得了明显效果。其优点是:1、用水量少,减轻了劳动强度.每亩喷药液仅用3.5—10公斤,在山区及其它用水困难的地区更有推广价值.
At present, the use of hand-operated sprayers in rural areas is quite common, and for a long time, 1.3-mm aperture spray chips have been used, with spray volumes ranging from 50 to 100 kg per acre, which are slow and inefficient, often resulting in reduced production due to the lack of timely control of pests and diseases. The use of a 0.7-mm orifice for low volume spray is an improvement on the application technique. Since 1985, we have applied such small-aperture spray tablets in the prevention and control of pests and diseases such as wheat, millet, vegetables, etc. and have achieved remarkable results. Its advantages are: 1, less water, reduce labor intensity per mu spray liquid only 3.5-10 kg, in the mountains and other areas more difficult to promote the value of water.