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- 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。
- 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。
- 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。
- 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;
- Effects of Agricultural Chemicals on Soil Urease Activity 农用化学物质对土壤脲酶活性的影响
- and the use effect of mixture of AOL and urea is superior to urea treatment. Soil urease activity(SUA) test shows SUA of AOL treatment is lower than control,it is possible to use AOL as urease inhibitor. AOL与尿素配施处理的玉米生物量比单施尿素效果好,表明AOL对尿素有一定增效作用,对土壤脲酶活性的分析发现,施用AOL的土壤脲酶活性明显低于对照,说明AOL还可以作为脲酶抑制剂施用。
- soil urease activities 土壤脲酶活性
- 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。
- 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。
- 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;
- The results showed the soil enzymatic activities decreased significantly with increase of contamination of heavy metals, especially dehydrogenase and urease activities. 结果表明,污染区土壤酶活性随著重金属污染程度的加剧而显著降低,其中脱氢酶和脲酶活性下降最明显。
- soil urease activity of rhizosphere is apparently different in different kinds of Leguminosae herbage. 不同种类豆科牧草,根际土壤脲酶活性存在明显差异。
- 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。
- soil urease activity amount increases as crop grows and root amount strengthens, which is significantly correlative to the amount of soil microbe. 土壤脲酶活性数量随作物生长与根系生物量的增强而增加,与土壤微生物数量显著相关;
- 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。
- Soil fungi number and urease activity were negative correlation with soil available potassium content. 土壤真菌数量、脲酶活性与有效钾含量呈负相关。