Perdas de grãos na colheita do trigo com diferentes colhedoras

Abstract

The wheat crop has been highlighted as an important winter cereal and occupies large tracts of land, especially in southern Brazil. When it comes to the time of harvest, many factors increase grain losses, directly interfering with the final productivity of the crops. In order to evaluate the loss in wheat harvest caused by different models of grain harvesters, an evaluation was carried out in crops belonging to the municipalities Cândido Godói - RS, Dezesseis de Novembro - RS, Roque Gonzalez - RS and Rolador - RS. The quantitative grain losses were estimated in the mechanized harvest of wheat with six different harvesters, among them some equipped with a radial threshing system and others with an axial threshing system. It is concluded that the losses of wheat grain were lower than the maximum values recommended by EMBRAPA and the harvester with the longest use had higher losses. The different threshing systems did not influence the losses during the wheat harvesting operation.