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。
SC27 could improve available nutrient contents in soil and increase the contents of nitrogen, protein, sugar and starch in leaves of watermelon and balsam pear plants.
这与SC27促进土壤养分有效化，提高植株叶片中氮、蛋白质、糖和淀粉含量有关。
The coherency test also results that the coherency between soil enzymes and available nutrient in the film-covered film is higher than that in the no-film-covered field.
从相关性测定亦表明：覆膜处理耕层主要土壤酶与有效养分之间相关性高于未覆膜处理。
The results indicated that the soil organic matter and total N of 26-year-old PBCA stand increased. the activities of soil biochemistry strengthened. the amount of available nutrient supply enhanced.
得出结果：26年生杉阔轮栽模式土壤有机质和全N含量增加．土壤生化活性加强．土壤速效养分供应量增强；
The results indicated that the soil organic matter and total N of 26-year-old PBCA stand increased. the activities of soil biochemistry strengthened. the amount of available nutrient supply enhanced.
得出结果：26年生杉阔轮栽模式土壤有机质和全N含量增加．土壤生化活性加强．土壤速效养分供应量增强；
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