Inter-relazioni tra pools di C organico e gruppi funzionali della sostanza organica in un suolo a diversa gestione agronomica

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Abstract

[automatically translated] Soil processing and crop rotation play a key role in influencing both the quantity and quality of soil organic matter (SOM). While several studies have been conducted to evaluate the effects of these factors on the agronomic organic C pools, including along the soil profiles, a few others have also investigated the relationships between the different pools of organic carbon and the functional groups of the SOM. Objectives of this study were to i) evaluate the effects of soil tillage and crop rotation on the different pools of organic carbon, and ii) to investigate the relationships between these pools and the functional groups of the SOM. Soil samples for the above research were taken at the experimental farm Pietranera (AG) of the University of Palermo. For 19 years, on soils classified as Chromic Haploxerert, it was made an experimental design of strip-type plot with two replications, whose experimental factors were the type of processing (conventional, dual layer and no-tillage) and crop rotation (monoculture wheat and corn-bean rotation). Soil samples, collected at the depth 0-15 cm, were analyzed to quantify the mineralization of organic C, as well as the pools of total organic C, removable (in 0.5 M K2SO4) and microbial. In addition, the SOM functional groups were investigated using DRIFT (Diffuse Reflectance Infrared Fourier Transform Spectroscopy). In this work are described and discussed in the above search results whose experimental factors were the type of processing (conventional, double layer and not working) and crop rotation (wheat monoculture and rotation wheat-bean). Soil samples, collected at the depth 0-15 cm, were analyzed to quantify the mineralization of organic C, as well as the pools of total organic C, removable (in 0.5 M K2SO4) and microbial. In addition, the SOM functional groups were investigated using DRIFT (Diffuse Reflectance Infrared Fourier Transform Spectroscopy). In this work are described and discussed in the above search results whose experimental factors were the type of processing (conventional, double layer and not working) and crop rotation (wheat monoculture and rotation wheat-bean). Soil samples, collected at the depth 0-15 cm, were analyzed to quantify the mineralization of organic C, as well as the pools of total organic C, removable (in 0.5 M K2SO4) and microbial. In addition, the SOM functional groups were investigated using DRIFT (Diffuse Reflectance Infrared Fourier Transform Spectroscopy). In this work are described and discussed in the above search results They were analyzed to quantify the mineralization of organic C, as well as the pools of total organic C, removable (in 0.5 M K2SO4) and microbial. In addition, the SOM functional groups were investigated using DRIFT (Diffuse Reflectance Infrared Fourier Transform Spectroscopy). In this work are described and discussed in the above search results They were analyzed to quantify the mineralization of organic C, as well as the pools of total organic C, removable (in 0.5 M K2SO4) and microbial. In addition, the SOM functional groups were investigated using DRIFT (Diffuse Reflectance Infrared Fourier Transform Spectroscopy). In this work are described and discussed in the above search results
Original languageItalian
Pages18-18
Number of pages1
Publication statusPublished - 2013

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