The uneven distribution of soil fertility and the low fertility of newly promoted wide terraces seriously restrict the rapid development of agricultural benefits.To rapidly improve the soil fertility of the newly promoted wide terraces,this study adopted a splitplot experimental design,set 0 t,0.5 t,1t,1.5 t organic fertilizer as the main treatment,and self-prepared microbial agent 1+NPK,commercial microbial agent 2+NPK,NPK with and without fertilization as secondary treatment,the effects of different fertilization measures on the growth of alfalfa were studied,and the results showed that in the case of organic fertilizer 1 t or 1.5 t,the application of microbial agent+NPK or NPK could significantly improve soil quality,promote the growth of alfalfa.Increase alfalfa production.
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