论文部分内容阅读
我国一直沿用液力式手动喷雾器,其主要缺点是用水量太大、雾滴太粗,喷到作物上的药水绝大部分(60—80%)流失掉。所用的喷头都是旋水式涡流芯喷头,喷出的是空心雾头,不利于作物均匀受药。东方红-18型机动弥雾机虽然能产生较细雾滴,工效很高,但机具很重,需要用汽油而且维修困难;气流太强,不适用于小块农田特别不适用于低矮、幼苗期作物,在丘陵地和山区梯田更不适用。因此,根据我国的分散经营的农业体制,必须向农民提
Our country has been using hydraulic hand sprayer, the main drawback is that the water is too large, the droplet is too thick, sprayed onto the crop of the vast majority of medicine (60-80%) lost. Sprinklers used are swirled vortex core nozzle, the hollow spray is hollow, is not conducive to uniform crop medicine. Dongfanghong -18-type mobile mist machine can produce smaller droplets, high efficiency, but heavy equipment, the need for gasoline and maintenance difficulties; air flow is too strong, not suitable for small farmland is not particularly suitable for low, Crop seedlings, terraces in the hilly and mountainous areas even less applicable. Therefore, according to the decentralized agricultural system in our country, we must mention to the peasants