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现在飞机已广泛用于世界农业,这中间经历了70多年的发展。早在1911年,为了保护森林和农业作物免受病虫害的威胁,一位德国的林务官阿尔弗瑞·济默曼首先提出,可以从飞机上喷洒化学液体和粉末,并取得了专利。但直到1918年才有人开始试用。最先试用的是美国,他们用双翼机喷洒砷剂来防治牧草的病虫害。1922年,苏联也开始试用飞机对部分农田喷洒化学药剂。相继加拿大、德国和新西兰等国都先后将飞机用于农业。第二次世界大战期间美国陆海军为了预防疟疾,还使用飞机在空中喷洒了DDT,并取得了显著效果。相继几次不同的试验都取得了十分可观的效果,因此很多人对飞机用于农业方面产生了浓厚的
Now the aircraft has been widely used in the world of agriculture, which has experienced more than 70 years of development. As early as 1911, in order to protect forests and agricultural crops from the threat of pests and diseases, Alfred Zimmerman, a German forestry officer, first proposed that patents on chemical liquids and powders can be sprayed from aircraft and patented. But it was not until 1918 that someone began to experiment. The first trial was in the United States, where they used biplane spraying of arsenic to control pastures and pests. In 1922, the Soviet Union also began to test the aircraft to spray some of the farmland chemicals. Successively Canada, Germany and New Zealand and other countries have used the aircraft for agriculture. During the Second World War, the U.S. Navy and the Navy used aircraft to spray DDT in the air in order to prevent malaria and achieved remarkable results. Several different experiments have achieved very impressive results, and many people have had a strong