去年,我所研制了适于南方丘陵、小块地的小型机动的配东风—12手扶拖拉机的2BF—4型手扶悬挂通用施肥播种机(图1),并于去年底通过省级科研鉴定.为了扩大播种机的通用性,该机设有花生.晚大豆、早大豆、棉花、小麦、 Last year, we developed the 2BF-4 hand-held universal fertilizing seeder (Figure 1) with a small motorized DF-12 walking tractor suitable for small hills in the south and passed provincial research In order to expand the versatility of seeder, the machine is equipped with peanuts.Late soybean, early soybean, cotton, wheat,