The farmers at Dalli have credited Moussa's greater harvest to his protection from the field station, and are now saying that it is the wind that is their enemy. By direct seeding perennials the farmers will obtain more food even before the perennials are mature enough to produce a harvest. Around Dalli the size of a farm is related to how much a farmer can farm, as there is enough land. Farmers can work a larger area when intercropping perennials because once established they only demand work at harvest time which is often outside the millet growing season. Also by getting a greater yield per plant they decrease their work load.
Perennials add nutrients to the soil directly, but they also have an indirect effect.
Presently soil nutrients are being lost as many farmers burn their fields in the dry season. This leads to the more nutritious top soil being blown away. Livestock then lose interest in this land as there is nothing left to graze, so there is very little nutrient input before sowing. If farmers intercrop perennials they will not burn their fields anymore, and the livestock will have a reason to enter the fields and thereby fertilise them. In the millet growing period the farmers at Dalli keep their livestock tethered, but when it is over the animals are allowed to roam freely.