我场1982年改装的大豆垄上双苗播种中间深施肥机构使用效果很好。通过一个生产周期的大面积使用试验,比大小圆盘侧深施肥增产6.64%。增产原因主要是播种双行,种子分布合理,对每一行又都满足侧深施肥的农艺要求。该机构前面是用24行开沟器深施肥,后面用48行开沟器在肥的两侧单片开沟圆盘分别开沟播种。在24行开沟器体后面加装一个用扁钢焊合制成的叉体(如图),在叉体两侧 My farm in 1982 modified soybeans on the sowing seedlings in the middle of deep fertilization institutions with good results. Through a large-scale production cycle test, than the size of the disc deep fertilization yield 6.64%. The main reason for the increase is the sowing double row, the seed distribution is reasonable, and each row also meet the agronomic requirements of the side-depth fertilization. In front of the agency is the depth of 24 lines of opener deep fertilization, followed by a 48-row opener in the fertilizer on both sides of the single ditching disc ditching sowing. In the 24-row opener behind the body with a flat steel welded fork body (Figure), on both sides of the fork