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- The correlation among soil microorganism quantity, enzyme activity and soil nutrient content is the significant, it can be used as evaluation index of soil fertility. 土壤微生物数量、酶活性与土壤养分间呈显著相关关系,可作为评价土壤肥力的指标。
- Long-term fertilization couldn't increase the soil hydrogen peroxidase activity.The correlation between hydrogen peroxidase and soil nutrient content was not obvious. 长期施肥不能增强土壤中过氧化氢酶活性,过氧化氢酶与土壤养分之间无明显相关。
- In order to find out the variations of soil nutrient content infarmlan ds of Guizhou, a survey of soil and fertilizer was conducted again in 1998, base d on the survey results of 1985. 为了解近年来化肥施用量倍增后,贵州农田土壤养分含量的变化,在1985年土壤调查的基础上,1998年再次进行了土壤和肥料调查。
- Abstract: In order to find out the variations of soil nutrient content infarmlan ds of Guizhou, a survey of soil and fertilizer was conducted again in 1998, base d on the survey results of 1985. 文摘:为了解近年来化肥施用量倍增后,贵州农田土壤养分含量的变化,在1985年土壤调查的基础上,1998年再次进行了土壤和肥料调查。
- This article elaborated the Tangshan soil fertility since 1994 the soil topsoil investigation change condition, has analyzed the soil nutrient content change reason, proposed the improvement way. 摘要论述了唐山市土壤肥力自1982年全国第二次土壤普查以来的变化状况,分析了土壤养分含量变化的原因,提出了改善途径。
- The soil nutrient contents and adsorption experiments were completed by Agro Service International Inc.(USA). 土壤养分含量和吸附试验由国际农业服务公司(美国)完成。
- organic matter and soil nutrient content 有机质及养分质量分数
- A comparative study was conducted to analyze the changes of soil nutrient contents in Eucalyptus forestland and in shrubland after three years of prescribed burning. 摘要采用对比分析方法,研究了广东鹤山桉林和灌草坡火烧迹地植被恢复后土壤养分含量的变化。
- According to the spatial variability characteristics of soil nutrient contents in the Guifeng Section,the soil nutrient contents were greatly affected by the mode of land use by man. 利用地统计学方法对龟峰段土壤养分的空间变异性研究表明:龟峰段土壤养分含量的空间变异强烈地受到人类土地利用方式的影响。
- Long-term fertilizationcan increase soil nutrients content evidently is because of crop can't uptake all the nutrients infertilization and the nutrients cumulated in soil. 长期施用有机肥能显著提高土壤耕层养分含量,主要是因为肥料带入土壤的养分没有全部被作物携走而在土壤中的累积。
- The spatial variabilities of most soil nutrient contents in different site conditions were medium.The variation extent of soil nutrient contents in shady slope was higher than that in sunny slope. 不同立地条件下的泥炭土养分含量大多属中等变异性,但阴坡泥炭土养分含量的变异程度一般要大于阳坡。
- On Relationship between Soil Nutrient Content and Growth of Alstonia scholaris 灯台树生长与土壤养分含量的关系
- Effects of film mulching of upland rice on root and leaf traits, soil nutrient content and soil microbial activity 水稻覆膜旱作对根叶性状、土壤养分和土壤微生物活性的影响
- Effects of No-tillage and Straw Mulching on Soil Nutrient Content and Drought Resistance of Maize on Dry Land 免耕和秸秆覆盖对旱地玉米抗旱性与土壤养分含量的影响
- Soil Phosphatase Activity and Its Relation with Soil Nutrient Content in Sheltered Planting Fields 设施栽培土壤磷酸酶活性及其与土壤养分的关系
- Dynamic Variety of Soil Nutrient Content Under Conditions of Straw Mulching and Irrigation 覆盖与灌溉条件下农田耕层土壤养分含量的动态变化
- Vegetation restoration and spatial variation of soil nutrient content in a hill-pond landscape 丘塘景观植被恢复与土壤养分空间分异规律研究
- Influence of Soil Nutrient Content Supplement Apply by N,K and Zn Fertilizer on Maize Field 玉米氮钾锌肥配施对土壤养分含量的影响
- Effects of Soil Nutrient Contents on Wheat Yield in Tongren Prefecture, Guizhou 贵州铜仁地区小麦产量限制因子分析
- Study on the Soil Nutrient and Tree and Grass Nutrient Content Cycle of Different Forest and Grass System in Converting Agricultural Lands to Trees 不同退耕还林林草模式土壤与林草间氮素变化规律研究