| 摘要 |
<p>PCT No. PCT/SE88/00073 Sec. 371 Date Oct. 16, 1989 Sec. 102(e) Date Oct. 16, 1989 PCT Filed Feb. 19, 1988 PCT Pub. No. WO88/05997 PCT Pub. Date Aug. 25, 1988.Apparatus in an agricultural combination machine for simultaneously inserting and positioning in the earth of at least two components, e.g. seed and fertilizer, primarily a combination machine for direct sowing on a field without previous soil cultivation of the ground by ploughing, harrowing or the like, and including a means cutting the earth, e.g. a disc coulter, a knife coulter or the like, and at least two tubular discharge means, one for each component, the cutting means and discharging means extending down into the earth under the earth surface. The means for cutting (2) and means for discharge (5, 6) are removably attached to a coulter arm (1) and to each other to be allowed displacement upwards and downwards such that they are mutually relatively adjustable in depth to given working depths under the earth surface.</p> |
