丘陵和山地草地通常是缺磷的,这在不同程度上与气候的影响结合在一起,限制了草地的生产力。通过常规的化学方法,评价丘陵和山地土壤磷的“有效性”,在大部分情况下是不能令人满意的,主要是由于土壤中磷化学性质的复杂与放牧羊群对土壤磷循环动态引起的影响。因此,虽然磷肥能促进牧草生长是众所周知的,但是,对什么地方施用磷肥最合适?施用量多少?仍然是常常 Grasslands in the hills and mountains are often phosphorus-deficient, which, to varying degrees, is combined with the effects of the climate, limiting grassland productivity. The assessment of “effectiveness” of soil phosphorus in the hilly and mountainous areas by conventional chemical methods is unsatisfactory in most cases, mainly due to the complex chemical nature of the soil and the dynamics of the phosphorus cycling in the flock Impact. Therefore, although it is well-known that phosphorus fertilizers can promote pasture growth, it is most appropriate to apply phosphate fertilizer to any place