Efeito da irrigação com efluente da bovinocultura leiteira sobre o solo em condições controladas.

Abstract

The degradation of the environment is preoccupying, due to the importance of the natural resources for the planet life. With the increasing of the confinement of the dairy cattle this problem has increased due to the great production of effluent. Thus, the present work had as objective to evaluate the contamination of the soil with the irrigation of the wastewater of dairy cattle. It was applied wastewater in vases just soil, inside protected environment, being used more two treatments, one with wastewater without solid particles, and another one without solid particles and with seasoning simple superphosphate, beyond the witness. The main joined results had been: (1) the wastewater presented high texts of Cu and Fe, in relation the limits established for national and international agencies; (2) the soil showed to normal levels of macro and micronutrients, it isn’t showing contamination for heavy metals. Thus, one concludes that the wastewater of the dairy cattle can be used in irrigation without contamination of the soil.