Effects of straw application on nitrate leaching in fields in the Yellow River irrigation zone of Ningxia, China.

Sci Rep · 2018 · PMC5772455 · PMID 29343715

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a decreasing trendno p-value reported

The nitrate concentrations in the soil leachate were higher in May and mid-June than at the end of June and the end of July, and there was a decreasing trend of nitrate concentration over time.

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