Vertical distribution of soil available phosphorus and soil available potassium in the critical zone on the Loess Plateau, China.

Sci Rep · 2021 · PMC7862489 · PMID 33542419

Europe PMC DOI

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closest p

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The sentences

a decreasing trendno p-value reported

20 found that the mean P content of Wucheng loess and the lower part of Lishi loess were lower than that of the upper part of Lishi loess and Malan loess, leading to a decreasing trend in element P.

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an increasing trendno p-value reported

Whereas the SAK exhibited an increasing trend at all sites.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.