Matanzas, July 3 (RHC)-- Cuban Vice President Jose Ramon Machado Ventura has called for increased production and crop yields to cover the needs of national commerce and reduce food imports. Evaluating the overall output of the Basic Units of Cooperative Production in the agricultural and sugar industry in western Matanzas province, Machado Ventura said that although results are higher compared to the same period last year, there is still much room for improvement. Machado Ventura said that better organization was needed and called for professional and technical improvement to achieve greater results.