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- Soil enzyme activity effected by Hg. 汞对土壤酶活性的影响。
- Dynamics of aquic brown soil enzyme activities under no-tillage. 潮棕壤免耕农田土壤酶活性的动态变化
- Soil enzyme including phosphatase, urease, proteinase, catalase were analysed. 通气良好有利于提高土壤过氧化氢酶活性.
- Soil enzyme and microbe play key roles in the cycle of mass and energy fluxes of soil ecosystem. 摘要土壤酶和微生物在土壤生态系统的物质循环和能量流动方面都扮演着十分重要的角色。
- Effects of fertilization treatments on soil enzyme activities, seedling growth and stachydrine contents of Leonurus japonicus Houtt. 施肥对益母草生长、土壤酶活性及水苏碱含量的影响。
- The relationship between total amount of soil enzyme runoff and slope gradient was exponential following this prediction model MC=atb. 土壤酶流失总量与坡度呈指数变化关系,符合MC=atb预测模型;
- Abstract : The soil nutrient, soil microorganisms and soil enzyme activities of soil under five different stands in Alar were studied. 摘要 : 对塔里木河上游果林地和胡杨林地土壤养分、微生物数量和酶的活性变化进行了研究。
- There are many studys on PCNB, but it has not beenreported that influence of PCNB on soil enzyme in vegetable greenhouse. 随着东北地区温室大棚的快速发展,开展PCNB对东北地区蔬菜大棚土壤酶活性影响研究更有实际意义。
- 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 results indicated that soil enzyme activity significantly correlated with soil chemical property and soil microbial quantity,except for the ca. 研究表明,随着填埋深度的加深,土壤理化性质,微生物数量和土壤酶活性有很大不同。
- The species of soil hydrolase,the sensitivity of different enzyme indices and the change mechanism of soil enzyme should be noticed in future studies. 今后在森林土壤酶的研究中,应重视水解酶的种类、酶指标的敏感性以及酶变化机理的探索。
- The overall differences of soil enzyme activities were significant, of which the proteinase and urease were the most significant. 土壤酶活性总体差异显著,其中差异明显的是蛋白酶和脲酶。
- Variation of culturable microbial population structure and essential soil enzyme activities were investigated with continuous cucumber cropping. 摘要利用平板培养法对黄瓜连作根系微生物种群连续性变化进行了跟踪研究。
- The regression equations between soil enzyme activities and chemical properties were obtained by using a stepwise regression method. 用土壤化学性质对各种酶活性进行逐步回归分析,可以得到理想的方程。
- A second more modern strategy to CRN involves use of soil enzyme inhibitors as a means of reducing large one-time releases of soluble nitrogen to the soil solution. 另一种比控释氮肥(CRN)更先进的方法是用土壤酶抑制剂来降低可溶性氮肥一次性大量释放到土壤溶液中。
- Effect of a new pesticide, acetamiprid, on biological activity in upland soil was studied through analysis of soil enzyme activities and soil respiration. 摘要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。
- This study dealt with the effects of maize, beet and soybean stubble remaining in field on soil enzyme activities, under the different temperature, moisture and nitrogen content. 摘要将玉米、大豆、甜菜三种作物根茬分别加入土壤中,在不同温、湿度条件和不同氮素水平下培养后,研究其对不同土壤酶的影响。
- This article expounds the effects of pollution of heavy metals on soil organisms and soil enzyme activities,discovers the harm of pollution of heavy metals on soil ecosystem. 本文通过阐述重金属污染对土壤生物及土壤酶活性的影响,揭示了重金属污染对土壤生态系统的危害。
- The experiment was carried out to evaluate effects of covering wheat straw in apple orchard and apricot orchard on soil humus composition, microflora and soil enzyme activities. 摘要在杏园和苹果园覆盖麦草,研究其对土壤腐殖质组成、微生物区系及土壤酶活性变化的影响。
- All the indexes of the second generation in the soil microorganism quantity, biomass, biochemistry activity and the change of soil enzyme activity of P. massoniana under the same condition are higher than those of the first generation. 结果表明,二代马尾松林土壤微生物数量、微生物生物量碳强度、呼吸作用强度、硝化作用强度、蔗糖酶以及过氧化氢酶活性均高于一代马尾松林。
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- 农业及相关产业增加值 - the added value of agriculture and related industries