Optimizing nitrogen and phosphorus application to improve soil organic carbon and alfalfa hay yield in alfalfa fields.

Front Plant Sci · 2023 · PMC10835404 · PMID 38312359

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a decreasing trendno p-value reported

In addition, these contents exhibited a decreasing trend as the soil depth increased.

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showed a trendno p-value reported

The mean DOC content showed a trend of increasing, then decreasing and then increasing under the nitrogen and phosphorus treatments.

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