With the greenhouse cultivating prolonging, the total N and P of soil accumulated, but the total K shortened.
随种植年限的增加,土壤全氮、磷盈余,而全钾则出现耗亏。
参考来源 - 山西中南部设施条件下土壤养分状况及生物特征研究Continuous fertilization for 22 years would result in the gradual decreasing of soil total potassium content directly connected with the various fertilizations, which leads to a lack of potassium in red dry land.
连续施肥22年,土壤全钾含量随着施肥年限的增加,均有逐渐降低的趋势,其下降幅度因施肥不同而变化,造成了红壤旱地钾素的缺乏。
参考来源 - 长期定位施肥对红壤肥力及作物的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
肥料处理促进油菜对全氮、全磷、全钾的吸收。
Fertilizer handling accelerated the absorption of nitrogen, phosphorus and kalium in cole.
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 average contents of soil total potassium(STK) and soil available potassium(SAK) were(21.
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.
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