一头猪是一个小型的有机化肥工厂。但猪粪中的氮和磷是以有机化合物的形态存在,一般植物是不能直接吸收利用的。尤其是粪尿中的氮素,如果不适当地加以处理,在自然条件下,很容易转化为碳酸铵而挥发散失,降低肥效。只有创造条件利用微生物的活动,把猪粪尿中的氮、磷、钾保存下来,才能充分发挥它对农作物的增产作用。怎样才能保存好呢?一般可以采取以下三种积攒的办法: A pig is a small organic fertilizer factory. However, pig manure nitrogen and phosphorus in the form of organic compounds exists, the general plant can not be directly absorbed. In particular, excrement of nitrogen, if not properly treated, under natural conditions, it is easily converted to ammonium carbonate and volatile loss and reduce fertilizer efficiency. Only by creating the conditions for the use of microorganisms to save the nitrogen, phosphorus and potassium in pig manure and urine can we give full play to its role in increasing crops. How can we save it? Generally can take the following three ways to save: