Environmental effectiveness of GAEC cross-compliance standard 2.2 "Maintaining the level of soil organic matter through crop rotation" and economic evaluation of the competitiveness gap for farmers
AbstractWithin the Project MO.NA.CO was evaluated the Environmental effectiveness of GAEC cross-compliance standard 2.2 â€œMaintaining the level of soil organic matter through crop rotationâ€ and economic evaluation of the competitiveness gap for farmers who support or not the cross-compliance regime. The monitoring was performed in nine experimental farms of the Council for Agricultural Research and Economics (CREA) distributed throughout Italy and with different soil and climatic conditions. Were also evaluated the soil organic matter and some yield parameters, in a cereal monocropping (treatment counterfactual) and a two-year rotation cereal-legume or forage (treatment factual). The two-years application of the standard â€œcrop rotationsâ€ has produced contrasting results with regards to the storage of soil organic matter through crop rotation and these were not sufficient to demonstrate a statistically significant effect of treatment in any of the farms considered in monitoring, only in those farms subjected to more years of monitoring was recorded only a slight effect of the standard as a trend. The variations of organic matter in soils in response to changes in the culture technique or in the management of the soil may have long lag times and two years of time are not sufficient to demonstrate the dynamics of SOM associated with the treatment, also in consideration of the large inter annual variability recorded in different monitored sites.
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