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为了适应大豆垄作的需要,达到同位分层施肥、宽苗带、随播随起垄的要求,我们对24行播种机进行了大豆垄作的改装,通过1987年春播使用,效果良好。一、改装方法 1.将24行播种机机架的各纵梁角钢割断,并在割断处加焊一长度为400～500毫米的同规格角钢,使播种机纵向加长400～500毫米。为加固起见,在每道纵梁底面再贴焊一根50×50毫米的角钢(见图一)。
In order to meet the needs of soybean ridge to achieve the same stratification fertilization, wide seedling belt, with the requirements of broadcast sow ridge, we have 24 rows of sowing machines for soybean ridge conversion, through the spring of 1987 to use, the effect is good. First, the conversion method 1. The 24 rows of sowing machine rack angle steel cut off, and welded at the cut at a length of 400 to 500 mm with the specifications of the angle, the planter to extend the length of 400 to 500 mm. For reinforcement, a 50 x 50 mm angle bar is welded to the underside of each stringer (see Figure 1).