Fertilidade, produção e nutrição de plantas submetidas a água residuária da industria de enzimas

Abstract

The reuse of industrial waste with low potential contaminant in agriculture is an important option for final disposal. To evaluate the agronomic potential of waste liquid from the production of enzymes (WLPE), set up an experiment in a Cambissoil cultivated underno tillage. There were two treatments (with and without the addition of 50 m3 of WLPE). It was evaluated in soil pH CaCl2, (H + Al), P, K, Ca, Mg and V% in 4 depths and in three samples of soil. The effects of three successive crops on the yield and nutrient content in the tissue: black bean (Phaseolus vulgaris), a consortium of oat (Avena strigosa) + forage turnip (Raphanus sativus) and maize (Zea mays L.). Increases in soil available P were observed, there were no changes in pH, (H + Al), K, Ca, Mg and V% using RLPE, and this provided no change in productivity in beans and corn, but a large increase in productivity and cycling of nutrients in plant cover (oat + turnip forage) were observed. There was no change in the concentration of nutrients in plant tissue of beans and oats + turnip indicating changes in nutritional status. The RLPE presented as an alternative for the supply of P, growth and cycling of nutrients in oats + turnip.