土壤速效养分含量是多年培肥土壤形成的，不属当年施肥。
The content of quick effective nutrient of soil is formed by applying fertilizer for years.
不同作物施钾肥效高低似与土壤速效养分中N/K比值有关。
K fertilizer efficicency on various crops seemed to de relevant to N/K ratio in the available nutrient of soil.
设施土壤速效养分增加对土壤微生物量碳、氮、磷有明显影响。
Compared with available nitrogen, increased available phosphorus just had the opposite effects to soil microbial biomass.
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