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- The activities of soil Urease and Sucrase had no significant correlation with soil nutrient. 相关分析表明，高寒草甸的土壤酶活性与营养成分含量之间相关不显著。
- By simulating methods, the effect of ethanol on soil urease activity was studied systemati cally. 摘要通过模拟方法，较系统地研究了乙醇对土壤脲酶活性的影响。
- The heavy metals (Cd, Pb, Cu, Zn) have significant positive correlation to soil urease activity (P<0.05). 重金属镉、铅、铜、锌与土壤脲酶达到显著正相关。
- The inhibitory effect of hydroquione on rice soil urease activity under the condition of potted planting was studied. 摘要在田间盆栽条件下研究氢醌对脲酶活性的抑制效果。
- There was little effect on soil urease and catalase activity for different peat levels. 但增施草炭对土壤中脲酶和过氧化氢酶影响较小。
- Fertilization could also increase soil enzyme activities, and soil urease and phosphatase activities could be used as the indicators of soil fertility. 施肥还可增加土壤酶活性，其中，土壤脲酶和磷酸酶活性可以作为衡量土壤肥力水平的指标。
- The soil urease activity and the number of ammonium oxidizing bacteria tend to increase by the continuous cropping years. 随着栽培年限的增加，土壤脲酶活性与氨氧化细菌数量有增大的趋势。
- Soil urease, phosphatase and peroxidase activities are increased significantly as well under the calcium cyanamide treatment in summer. 夏季石灰氮消毒处理对提高脲酶、磷酸酶和过氧化物酶活性的效果显著；
- Soil urease，catalase，the maximum soil moisture capacity and non-capillary porosity could be used as indicators to assess the soil fertility. 土壤脲酶、过氧化氢酶、最大持水量、非毛管孔隙度是评价华北落叶松土壤肥力的重要指标。
- The dynamic changes of soil urease and phosphatase activities and soil N,P and K in cherry rhizosphere and their relationships were studied by a pot experiment. 通过盆栽试验研究了樱桃根际脲酶、磷酸酶活性与氮、磷、钾动态变化及其相互关系。
- The soil urease activity under polytunnel greenhouse cucumber aggregate culture in troughs is higher than that under polytunnel greenhouse cucumber soil. 在种植同一种蔬菜（黄瓜）条件下，基质槽培下脲酶活性大于土壤栽培。
- The results showed that after adding furadan into soil, soil urease activity was decreased first but increased then, indicating that the ecotoxicity of furadan was reduced gradually. 结果表明：呋喃丹加入土壤后，土壤脲酶活性最初受到抑制，随培养时间的延长，呋喃丹的生态毒性逐渐降低，并最终激活脲酶；
- The activities of soil urease fluctuated with soil depth in both top and middle slope positions, but increased in the pattern of solar slope>lunar slope>fallow land at the slope bottom. 在坡顶和坡中部土壤剖面脉酶活性波动较大，在坡底为阳坡＞阴坡＞撂荒地。
- By using simulation method, this paper studied the effects of furadan on the activities of soil urease, invertase and alkaline phosphatase, with the affecting factors investigated. 通过模拟方法，研究了呋喃丹与土壤中3种重要水解酶类-土壤脲酶、转化酶和碱性磷酸酶的关系及其影响因素。
- Effects of soil Pb pollution on growth of Brassica chinensis and Ipomoea aquatica and soil urease activities were investigated in three different soils through pot experiment in the greenhouse. 通过温室盆栽试验研究了草甸棕壤、红壤和灰色石灰土的人为铅污染对青菜和蕹菜生物量、铅含量及土壤脲酶活性的影响。
- Some plants push their roots deep into the soil. 一些植物的根深深长入土中。
- Such crops won't grow in limy soil. 这类作物不能在石灰质的土壤中生长。
- What shall we grow in this alkaline soil? 我们应该在碱性土壤里种什么？
- There are a lot of worms in the soil. 泥土中有许多蠕虫。
- Effects of Agricultural Chemicals on Soil Urease Activity 农用化学物质对土壤脲酶活性的影响
