There is a decreasing trend in soil available potassium…
土壤速效钾有下降的趋势。
Soil fungi number and urease activity were negative correlation with soil available potassium content.
土壤真菌数量、脲酶活性与有效钾含量呈负相关。
The results showed that the average contents of soil total potassium STK and soil available potassium SAK were 21.
结果表明：供试土壤中速效钾的动态变化特征各异，其“最低值”的大小和出现的茬数也不相同。
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