利用根箱技术研究了不同施肥体制下（有机肥、化肥、有机无机配施）小麦根际土壤的酶活性，结果表明：有机肥和有机无机配施能提高土壤特别是根际土壤酶的活性（酸性磷酸酶、脲酶、转化酶、蛋白酶），有机肥主要是通过促进小麦根系生长，增加根系分泌物等间接作用提高根际土壤酶活性，这将对当季作物生长有着重要影响．因此，有机肥不仅有长久性作用即保持和提高土壤肥力；而且有适时性的作用，即通过影响根系生长及根际环境来促进当季作物的生长。 The rhizosphere technology was used to study the enzyme activities of soil rhizosphere soil under different fertilization systems (organic manure, chemical fertilizer and organic-inorganic combination). The results showed that organic manure and organic-inorganic combination could enhance soil enzyme activities in rhizosphere soils (Acid phosphatase, urease, invertase, protease). Organic manure enhances rhizosphere soil enzyme activities mainly through indirect effects such as promoting root growth of wheat and increasing root exudates, which will have an important impact on crop growth in the current season. Therefore, organic fertilizers not only have long-term effects of maintaining and improving soil fertility, but also have a timely effect of promoting the growth of the crop by affecting root growth and rhizosphere environment.