| 摘要 |
A device for application of liquid soil improvers and fertilizers into soil consists of a frame, posts with flat hoes and supply pipelines. A post is made as two paired arched supply pipelines, one of which is rigidly connected to the frame and a flat hoe, and the second is disposed in such a manner that on the outer arched surface it touches the first pipeline, hingedly connected to the flat hoe by the lower end, and connected to the frame by the upper end. |
