Agriculture based on three main agronomic principles applied simultaneously: direct sowing without any soil tillage, permanent (plant or organic) soil cover and diversification of crop rotation. The main objective of this combination of principles is to reduce soil degradation and, ultimately, improve fertility by intensive use of biological and ecological processes of the soil ecosystem, intended to replace certain inputs...[Dictionary of agroecology : https://dicoagroecologie.fr/en/encyclopedia/conservation-agriculture/]