多年来，干旱缺水一直困扰着我国北方农业。最为严重的是历年的春旱，有“春雨贵如油”之说。春旱给大田播种和作物苗期生长造成了严重威胁，特别是对于无水源配套的大面积农田会造成严重减产，甚至绝收。针对上述情况，我们研制了抗旱保苗多功能作业机。该机主要用于对玉... For many years, drought and water shortage have plagued agriculture in northern China. The most serious is the spring drought over the years, a “spring rain as expensive as oil,” said. Spring drought poses a serious threat to the sowing of seeding fields and the growth of crops at seedling stage. In particular, large-scale farmland supporting no water sources will cause serious yield reduction and even absolute failure. In response to the above situation, we developed a drought-resistant seedlings multi-functional machine. This machine is mainly used for jade ...