Integrated biochar and green manure improve maize productivity and soil health under reduced nitrogen fertilization in yellow soil.

Front Plant Sci · 2026 · PMC13124711 · PMID 42064320

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highly significantno p-value reported

3.6 Analysis of correlations between carbon fractions and aggregates, enzyme activities, and their influencing factors under different treatments As shown in Figure 4 , correlation analysis revealed significant to highly significant positive correlations among soil carbon fractions.

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an increasing trendno p-value reported

After the individual application of biochar and green manure (T2 and T3), the soil pH, OM, TN, AP, and AK contents showed an increasing trend compared with T1.

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