As good water condition in wet season, soil enzyme activity is more obviously than dry season.
湿季由于较好的水分条件，土壤酶活性较干季显著增加。
A field fertilizer experiment was made to explore the effect of different fertilizer treatments on soil nutrients and enzyme activity in different layers of river ancient channel.
通过田间肥料试验，探讨不同试验处理对河流故道区不同土层土壤养分及其酶活性的影响。
Soil enzyme activity varied obviously with duration of vegetable plantation and could be cited as a sensitive indicator of changes in soil quality.
不同利用年限菜地土壤酶活性变化幅度较大，能够更为敏感的指示土壤质量的变化。
Effect of winter sown Chinese vetch on soil enzyme activity in calcarious dirt soil is studied.
研究在石灰性烂田中冬种紫云英对土壤酶活性的效应。
The results showed that all the 4 species of plants improve greatly the organic C and total N in soil with microbial biomass accumulated much more and soil enzyme activity improved.
结果表明，4种固沙植物均能明显改善土壤C，N水平，提高微生物生物量，改善土壤酶的活性。
Effect of a new pesticide, acetamiprid, on biological activity in upland soil was studied through analysis of soil enzyme activities and soil respiration.
通过对土壤呼吸强度和土壤酶活性的测定，研究了新型杀虫剂啶虫脒对旱地土壤生物活性的影响。
The nutrient availability, microbe number and enzyme activity of rhizosphere soil in the intercropping system are significantly higher than those in the single culture.
与单作相比，间作体系中的玉米、大豆根际土壤养分有效性、根际土壤微生物数量、根际土壤酶活性均显著高于相应单作根际土壤。
The nutrient availability, microbe number and enzyme activity of rhizosphere soil in the intercropping system are significantly higher than those in the single culture.
与单作相比，间作体系中的玉米、大豆根际土壤养分有效性、根际土壤微生物数量、根际土壤酶活性均显著高于相应单作根际土壤。
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