| 摘要 |
An in-line sub-surface seeding, fertilizing and watering system includes a blade (10) mountable into a header (112) of a parallelogram linkage (110). A pair of parallel rigid drag arms (116) extend between the header and a hanger assembly (114) and are pinned at their respective ends so that rotation of the header relative to the hanger assembly on the parallel arms maintains a general horizontal orientation of the header thereby supporting the blade downwardly in a constant orientation. The hanger assembly is mountable to a supporting frame (186). A selective actuator (138) allows selective control of a downward force urging the blade into the soil. An in-line coulter wheel (130) is mounted ahead of and in-line with the blade so as to be substantially co-planar therewith. The trailing edge of the coulter-wheel is adjacent to the leading edge of the blade. |
