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An investigation was conducted on the amount and rate of soil organic matter (SOM) turnover, as influenced by agricultural operations in ultisols in Argentina. The decrease of particulate organic carbon (POC) and decomposition or relative stability of its free (POC f ) and occluded (POC o ) fraction were determined at sites under a forest, yerba mate (Ilex paraguariensis St. Hill),...
Texture, among several other factors, may play an important role in controlling the distribution and activity of soil microbial biomass and, in turn, the size and quality of soil organic matter (SOM) pools, and the related dynamics of N and S in soil. Little information is available in the current literature on the occurrence and extent of these textural effects in semiarid soils of Argentinean Pampas...
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