CHANNEL ARRANGEMENT FOR SEMI-HYDROPONIC CULTIVATION. The utility model refers to a constructive arrangement introduced in a gutter that is intended for semi-hydroponic cultivation. The gutters known for semi-hydroponic cultivation have a rectangular profile with a flat bottom that result in the following drawbacks: it does not have a specific region that can be an effective channel for the flow of the nutrient solution； it has little structural rigidity, requiring closer supports to support the gutter. The trough layout for semi-hydroponic cultivation comprises a profile (1) with a rectangular cross section whose bottom consists of an ascending central portion (2) and two flat side portions (3). The central arched portion (2) of the bottom of the gutter serves as a driver of the nutrient solution for the lateral portions (3), which in turn act as collection valleys and drainage channels. In addition, the lateral portions (3) of the bottom of the profile act as bases for support and balance of the rail. The new constructive arrangement in a gutter for semi-hydroponic cultivation results in the following functional improvements in use: it presents a structured bottom that increases the stiffness of the gutter, allowing the support struts to be separated； it has an arched bottom that defines lateral portions that act as double channels for collecting and facilitating the flow of the nutrient solution； the bottom side protections act as bases, improving the stability of the gutter.DISPOSIÇÃO EM CALHA PARA CULTIVO SEMI-HIDROPÔNICO. O modelo de utilidade refere-se a uma disposição construtiva introduzida em calha que é destinada ao cultivo semi-hidropônico. As calhas conhecidas para cultivo semi-hidropônico apresentam um perfil retangular com fundo plano que resukltam nos seguintes inconvenientes: não apresenta uma região específica que possa como uma eficaz canalização para o fluxo da solução nutritiva； possui pouca rigidez estrutural, exigindo suportes mais próximos par
