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以碳铵作基肥,常采用地表撤施的方法,即先将碳铵撒于未耕地上,然后耕地翻土覆盖。由于这种方法覆土浅,不均匀,因而降低了肥效。为此,山东诸城农机所研制了犁底施肥装置。该装置是以悬挂犁的犁架为机架,上装肥料箱和变速箱,然后再装上传动机构和排肥机构、下肥管等(见图)。排肥机构由泰山—50拖拉机动力输出轴经变速箱,传动机构而驱动。每个下肥管的下端位于各犁体之后,肥料由排肥机构送到下肥管,然后均匀撒于犁沟内,并被后一犁铧翻土覆盖。为了解决排肥难的问题,排肥
Ammonium bicarbonate as a base fertilizer, often using the method of surface withdrawal, that is, first ammonium bicarbonate sprinkled on uncultivated land, and then covered with soil. Due to this method covered shallow soil, uneven, thus reducing fertilizer efficiency. To this end, Shandong Zhucheng Agricultural Machinery developed plow bottom fertilization device. The device is based on the plow hanging plow rack, loaded fertilizer tank and gearbox, and then install the transmission mechanism and the fertilizer body, the next fat tube, etc. (see photo). Fertilizer body from Taishan -50 tractor power output shaft through the gearbox, transmission and drive. The lower end of each lower fertilizer pipe is located behind each plow body, and the fertilizer is sent to the lower fertilizer pipe by the fertilizer-discharging mechanism, and then evenly dispersed in the furrow and covered by the latter plowshare. In order to solve the difficult problem of fertilizer, fertilizer