There is a decreasing trend in soil available potassium…
土壤速效钾有下降的趋势。
The available potassium and boron was deficiency in general.
速效钾、有效硼全面缺乏。
The loss of fine soil has the most sensitive impact on available potassium.
土壤细颗粒的损失对土壤有效钾影响最大。
Rapidly available potassium contents in 77.3 % production units were middle.
速效钾含量处于中下水平的生产单位占77.3%；
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。
The results showed that the average contents of soil total potassium(STK) and soil available potassium(SAK) were(21.
结果表明，该区土壤有机质层全钾的平均含量为（21。
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。
Soil total potassium content, soil available phosphorus, soil total potassium content and soil available potassium, Their variation is not obvious.
而土壤全磷、土壤全钾、土壤有效磷、土壤有效钾随着土壤深度的增加，其变化规律不明显。
The organic matter and available potassium increased by a big margin will were vital question in the course of the fertility restoration of degenerated soil.
大幅度提高土壤有机质含量及供钾水平是退化土壤肥力恢复过程中面临的重要问题。
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。
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。
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。
The content of soil nutrients, especially available nitrogen, phosphorus and potassium is one of the important bases to instruct scientific fertilization.
土壤碱解氮、速效磷和速效钾等养分的含量是指导科学施肥的重要依据之一。
The results showed the average contents of available K, slowly released K in potassium pools in tea-grown soils were significantly increased by potassium fertilizer.
结果表明，施用钾肥能明显提高土壤钾库中的速效钾和缓效钾含量，但对土壤全钾含量影响不大；
And it could improve the contents of organic matter, alkali - hydrolyzable nitrogen, available phosphorus and potassium in soil.
土壤中的有机质、碱解氮、速效磷、速效钾的含量均比对照增加。
The yield increase of K fertilizer was quite high at two rates of nitrogen application, and it closely relative to the content of available K in soil and potassium application rate.
钾肥的增产效率在两种氮肥水平下都较高，单位钾肥的增产量与土壤有效钾含量及施钾量呈极显著负相关；
The yield increase of K fertilizer for wheat was closely related to the content of available K in soil and potassium application rate.
小麦钾肥的增产效应与土壤有效K含量和施K量有极大关系。
The yield increase of K fertilizer for wheat was closely related to the content of available K in soil and potassium application rate.
小麦钾肥的增产效应与土壤有效K含量和施K量有极大关系。
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