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Organic Carbon Accumulation and Aggregate Formation in Soils Under Organic and Inorganic Fertilizer Management Practices in a Rice–wheat Cropping System by Zhanhui Zhao; Yanli Mao; Songfeng Gao; Chunyang Lu; Chuanjiao Pan; Xiaoyu Li is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Organic Carbon Accumulation and Aggregate Formation in Soils Under Organic and Inorganic Fertilizer Management Practices in a Rice–wheat Cropping System about?

## Abstract Soil organic carbon (C) and aggregates are the important components of soil fertility and the foundation of sustainable agriculture. The storage and protection of SOC in aggregates is widely regarded as the material basis of soil organic C accumulation. However, current understanding of soil aggregate and its associated organic C is insufficient to elucidate the regulation mechanism of soil organic C. A nine-year field experiment including chemical fertilizer (FR) and organic manure (OM) treatments was set up in the eastern plain of Funiu Mountain, central China. Using chemical analysis, physical sieving as well as nuclear magnetic resonance (NMR) methods, we mainly probed into the response of soil organic C concentration and composition, and C functional groups, water-stable aggregates to different treatments. Furthermore, scanning electronic microscopy (SEM) and partial least square structural equation modelling (PLS-SEM) was conducted to characterise the different size aggregates and to analyse the mechanism of soil organic C accumulation and stabilisation at aggregate scales. After nine years of farming, OM treatment substantially increased soil organic C content (b

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Author

Zhanhui Zhao; Yanli Mao; Songfeng Gao; Chunyang Lu; Chuanjiao Pan; Xiaoyu Li

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)