Eficiencia de la aplicación mecanizada de estiércol líquido y su efecto sobre el rendimiento de maíz (zea mays l.) Forrajero

With adequate technology and procedures, livestock manure can be handled in liquid state, since it eases its storage, decreases the loss of nutrients, possible impacts on the environment, and improves its incorporation to the soil for the sustainable production of crops. The mechanized injection of liquid bovine manure (LBM) and its implications on fodder maize (Zea mays L.) yield was evaluated, compared to chemical fertilization. The reference dose was 160N-30P-00K, and in a random block experimental design with three treatments, the amount to be applied was at 50 %, 100 % and 150 % of the dose foreseen for treatments one, two and three, respectively, and treatment four (control) with chemical fertilizer (100 %) of the dose established. For the satisfactory recollection and application of LBM, a tank and injector equipment was built. The final yield showed differences (P0.05) of 1.9 t ha1 higher, only in the application of LBM of the 100 % treatment of the dose compared to the chemical fertilization treatment.