A procedure for collection and processing of weed seeds of the type which includes: a first step of collecting of a plant material； fourth step of threshing of the harvested material； a fifth step of separating of grains from material other than the grains； a sixth step of cleaning of the main material； a seventh step of transporting the main material to a discharge device； and an eighth step of storing the main material in an appropriate media. Also includes a second step of placing the material obtained by a thresher head assembly into at least one conveyor belt towards a trailer； a third step of transferring the plant material into a transport and hauling vehicle to a stationary processing plant； a ninth step of grinding the residues； a tenth step of introducing the MDG into densification device； and a tenth step of incorporating in a mixer the resulting grinding of the ninth step along with at least one supplement.
