On farm trials in CA are very useful. They provide farmer’s opinions on experimented techniques and enable to take them into account when designing DMC features. But the monitoring is expensive and sometimes fastidious. After these 4 years of trials in farmers’ fields, the effort will be focused on the training of Sodecoton extension team that will be in charge of CA extension to a large scale. At a research point of view, the remaining topics to be focused on are: + selection of adapted fertilisation according to cover plants used in the rotation + selection of herbicide treatment to decrease labour on the field with more weeds (North province) when mulching is not sufficient + production of biomass the same year of the cotton, taking advantage of the first rain of the season.