The Study of Causes Losses Post-Harvests Of Cereal the Case of the Wheat - Barley at the The Region Gharb Chrarda Beni Hssen

s: The agriculture plays an important role in the Moroccan economy. The cereal culture occupies a place excellence in the farming sector. Cereals are essentially represented by the cultures of the wheat and the barley.The farmers meet several obstacles which accompany them during all the season and which can cause dramatic losses. The difficulty of the estimation of these losses by the farmers which is provoked by multiple parameters influences the quality and the cost price of these farmers.A questionnaire worked out to collect information about the causes of the economic losses of both cultures the barley and the wheat (hard wheat, soft wheat) and the factors which intervene in the variation of cost price during every year. The results show that the major problem for the questioned farmers they are the climatic conditions following the various stations of Gharb Chrarda Beni Hssen region.