Dead mulch, obtained by mechanically terminating cover crops using a roller crimper, is a key technique in conservation and organic farming. This approach reduces environmental impact and enhances the resilience of cropping systems, offering a sustainable alternative to chemical weed control. The roller crimps and flattens the cover crop at its reproductive stage, creating a layer of mulch that remains on the soil surface. This plant residue improves the soil’s physical properties, reduces moisture loss, limits erosion, and moderates surface temperature. Additionally, it slows down the mineralisation of organic matter, promoting a more gradual release of nutrients and contributing to the preservation of soil fertility in the medium to long term. The choice of cover crop species and the timing of crimping are crucial factors for the success of this technique.
Document no: 14. IT_PA_DeadMulch_BS14_EN
