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。
In this study, the effects of a new type of biological organic fertilizer (NAEF) on tomato growth, yield and soil activity quality were studied through pot experiments.
应用盆栽试验研究了新型生物有机肥(NAEF)对番茄生长发育、产量及土壤活性质量等方面的作用效果。
Biological activity in a soil is influenced by soil acidity and nutrient status.
活动被土壤养分含量状况所制约。
Soil organic matter (SOM) is the constitutive and biological basic substance of soil, is the condition and product of vital activity.
有机质（SOM）是土壤具有结构性和生物性的基本物质，它是生命活动的条件，也是生命活动的产物。
Soil organic matter (SOM) is the constitutive and biological basic substance of soil, is the condition and product of vital activity.
有机质（SOM）是土壤具有结构性和生物性的基本物质，它是生命活动的条件，也是生命活动的产物。
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