soil available nutrient status 土壤速效养分状况
soil available nutrient coefficient 土壤有效养分系数
soil available nutrient use efficiency 土壤有效养分利用系数
soil rapidly available nutrient 土壤速效养分
available soil nutrient 土壤有效养分
available of soil nutrient 养分有效性
available nutrient of soil [土壤] 土壤有效养分
available nutrient in soil 土壤速效养分
We concluded that chitosan improved soil available nutrient content, faciliated vegetable takeup of nutrients, and improved soil fertility and fertilizer efficiency8.
说明壳聚糖不仅可以增加土壤速效养分含量，还可以促进蔬菜对土壤养分的吸收，从而增加土壤肥力，提高肥料利用率。
参考来源 - 壳聚糖对蔬菜产量品质、根系生长及土壤理化性状的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
Enhancement of soil available nutrient was highest in treatment 1, treatment 4 and 5 on the second place.
土壤中的有效养分的增加以处理1为最高，其次为处理4和处理5。
The reconstructive efficiency of soil available nutrient pool was dependent on the surplus or deficit of soil nutrients.
土壤中赢余（亏损）的养分在养分库重建中的作用可以用速效养分库重建效率来表示。
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。
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