试验目的我室1973年和有关工厂结合试制成球肥机,深层施肥机,实现了机械配套。球肥机当时可以压制纯碳铵球肥,带泥土的复合球肥,而后又经改进,使球肥机可以压制各种纯化肥的复合球肥以及添加部分有机肥料的有机无机复合球肥,这就为生 Purpose of the test Our laboratory combined with the pilot plant in 1973 into a ball-making machine, deep fertilizer, to achieve a mechanical package. Ball machine was able to suppress pure ammonium bicarbonate ball, mud with composite ball fertilizer, and then improved so that the ball machine can suppress a variety of pure fertilizers of composite ball and add some organic fertilizer inorganic inorganic compound ball, This is a living