| 摘要 |
A method is disclosed for spreading fertilizers by means of a spreader, preferably attached to the power lift of a tractor. The spreader comprises driven throwing elements which throw the fertilizer particles over an area which is substantially greater than the structural width of the spreader, and whose effective spreading width may be modified, wherein the throwing elements distribute the fertilizer particles over the ground surface to be treated in a uniform spreading pattern in laterally adjacent and overlapping spreading areas with no gaps. In order to ensure an optimum and uniform spreading of the fertilizer whilst taking into account all the conditions of use encountered in practice, the spreading pattern (28) consists of at least three adjacent and overlapping individual spreading areas (29, 31), each of the spreading areas being produced by a respective special throwing element (19, 20). The throwing elements of the spreader may be formed either as centrifugal discs rotating about vertical axes or as distributor nozzles moved with a reciprocating movement. <IMAGE> |
