Abstract: This title discussed the effects of different fertilizers, fertilization configuration and fertilization methods on soil fertility, and also took some researches on the balance and cumulation of N, P, K nutrients in soil.The results showed that the effects of unit N on the surplus of N in soil were dungs of pig> fertilizers> straws, the effects on increasing the whole N in soil were straws> fertilizers> dungs of pig;the effects of unit P on the surplus of P in soil were dungs of pig, the effects on increasing the whole P in soil were fertilizers> dungs of pig> straws;the effects of unit K on the surplus of K in soil were fertilizers> dungs of pig> straws, the effects on reducing the K loss in soil were dungs of pig> straws> fertilizers.

Key words: fertilizer, N, P, K nutrients of soil, balance and cumulation

摘要： 本文探讨不同肥料、施肥结构、施肥方法对土壤养分三要素平衡与累积的影响。结果表明,不同形态单位氮素投入对土壤氮素盈余影响为猪粪> 化肥> 稻草,对土壤全氮提高的影响为稻草> 化肥> 猪粪;不同形态单位磷素投入对土壤磷素盈余的影响为猪粪> 化肥> 稻草,对土壤全磷提高的影响为化肥> 猪粪> 稻草;不同形态单位钾素投入对土壤钾素盈余影响为化肥> 猪粪> 稻草,对缓解土壤钾素下降的影响为猪粪> 稻草> 化肥。

关键词: 肥料, 土壤养分三要素, 平衡与累积