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Aims The stability of soil organic carbon (SOC) is of great importance in controlling long-term carbon (C) sequestration and feedbacks of soil C pools to climate change. It has been well documented that rice cropping and organic amendments could enhance SOC stocks, while the stability of the sequestered C has not been well understood yet. The objective of this study was to examine the difference in...
Increasing evidence has shown that conservation tillage is an effective agricultural practice to increase carbon (C) sequestration in soils. In order to understand the mechanisms underlying the responses of soil organic carbon (SOC) to tillage regimes, physical fractionation techniques were employed to evaluate the effect of long-term no-tillage (NT) on soil aggregation and SOC fractions. Results...
We examined the long-term effects of inorganic fertilizer (N and NPK) and manure application on soil aggregation and carbon (C) fractions under a double corn (Zea mays L.) cropping system in a subtropical red soil. Results showed that application of manure combined with NPK (NPK+M) gained the highest yield and increased the stability of crop production. Application of inorganic fertilizer could sustain...
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