Soil available nutrient 土壤速效养分 ; 土壤有效性养分 ; 土壤有效养分
slowly available nutrient [肥料] 缓效性养分
readily available nutrient 速效养分
available nutrient content 速效养分
instant available nutrient 速效养分
Available nutrient dynamics 速效养分动态
The forest soil's type was extremely complex, the shape and quantity of available nutrient had a distinct difference in different soil.
森林土壤类型极其复杂，不同土壤中各种有效养分形态和数量差异很大。
This paper mainly states the coherency between the main enzymes and the available nutrient in ploughed layer in soils mulched with film.
本文主要阐述覆膜栽培耕层土壤主要酶与有效养分变化及其相关性。
Through correlation analysis, active relationship existed between three kinds of enzyme activities and organic matter and available nutrient.
相关分析表明，磷酸酶、脲酶、蔗糖酶活性与有机质、全氮及速效养分均呈极显著正相关。
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