High capacity of integrated crop-pasture systems to preserve old stable carbon evaluated in a 60-year-old experiment.
Resumen:
ABSTRACT.- Integrated crop-pasture rotational systems can store larger soil organic carbon (SOC) stocks in the topsoil (0-20?cm) than continuous grain cropping. The aim of this study was to identify if the main determinant for this difference may be the avoidance of old C losses in integrated systems or the higher rate of new C incorporation associated with higher C input rates. We analyzed the temporal changes of 0?20?cm SOC stocks in two agricultural treatments of different intensity (continuous annual grain cropping and crop?pasture rotational system) in a 60-year experiment in Colonia, Uruguay. © Author(s) 2024.
| 2024 | |
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Integrated crop-pasture rotational systems Mineral-associated organic matter (MAOM) |
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| Inglés | |
| Instituto Nacional de Investigación Agropecuaria | |
| AINFO | |
| https://ainfo.inia.uy/consulta/busca?b=pc&id=64743&biblioteca=vazio&busca=64743&qFacets=64743 | |
| Acceso abierto |
| Sumario: | ABSTRACT.- Integrated crop-pasture rotational systems can store larger soil organic carbon (SOC) stocks in the topsoil (0-20?cm) than continuous grain cropping. The aim of this study was to identify if the main determinant for this difference may be the avoidance of old C losses in integrated systems or the higher rate of new C incorporation associated with higher C input rates. We analyzed the temporal changes of 0?20?cm SOC stocks in two agricultural treatments of different intensity (continuous annual grain cropping and crop?pasture rotational system) in a 60-year experiment in Colonia, Uruguay. © Author(s) 2024. |
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