Substituting chemical P fertilizer with organic manure: effects on double-rice yield, phosphorus use efficiency and balance in subtropical China.

Sci Rep · 2021 · PMC8060255 · PMID 33883629

Europe PMC DOI

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a decreasing trendno p-value reported

Based on an incubation experiment on farmyard manure mineralization in tropical soils, a decreasing trend of soil resion extractable P with incubation time was also reported 44 , indicating the process of P-fixation in soil with high P absorption capacity.

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an increasing trendno p-value reported

The PUE of both the NPK and NKM treatment had an increasing trend with experimental year.

also in 63,971 other papers

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.