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 content of available potassium in soil increased with clinoptilolite application increase.
结果表明：土壤速效钾含量随沸石施用量的增加而增加；
The available phosphorous, available potassium and soil organism content were not conspicuously influenced by the grazing time.
速磷、速钾、土壤有机质的含量受放牧时间的影响不明显。
During the whole growing period, the soil available potassium contents were always detracting, but the contents of total potassium in soil had changed little.
在烟株的整个生育过程中，土壤速效钾含量一直在降低，土壤全钾含量变化幅度较小。
The result shows that the content of slow-release potassium and available potassium is low. Theamount of available potassium and fixed potassium increase with increasing amount of applied potash.
结果表明，风沙土钾素含量较低，土壤速效钾含量及被土壤固定的钾量均随着施钾量的提高而增加。
Available potassium and slow-released potassium contents were decreased, and total potassium content was changed insignificantly in the soil of mono-application of nitrogen fertilizer.
单施氮肥的土壤，速效钾、缓效钾含量均降低，全钾含量变化不明显。
Available potassium and slow-released potassium contents were decreased, and total potassium content was changed insignificantly in the soil of mono-application of nitrogen fertilizer.
单施氮肥的土壤，速效钾、缓效钾含量均降低，全钾含量变化不明显。
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