Agricultural production, processing of final products and marketing represent a technological chain restricted by the capacities of each link, but finally by the demand on the sale market. Raw material processors easily become monopolists (through unofficial agreements); raw material producers, being many in number, with small production capacities and a reduced time of quality maintenance, cannot become monopolists through unofficial agreements. In consequence, the agricultural producer is put face to face with unfavorable marketing conditions. Under these circumstances, the author points out several methods to solve this problem: first – raw material processors become at the same time holders of agricultural parcels; second – agricultural producers are supported by the State which takes care of the evolution of prices: not lower than a certain level; third – farmers establish themselves a syndicate having the function to settle minimum unique prices