Produ??o de matéria seca em pastagem de Tifton 85 irrigada, com diferentes doses de dejeto líquido de suíno

摘要

Liquid swine dejection (LSD) can constitute excellent source of fertilization in pasture, with sprinkler irrigation system, provided the conditions that assure the protection of the environment. Although with proved potential for growth without irrigation, for the Cynodon sp cultivar Tifton 85 there is little information on its behavior and production in systems under irrigation and with LSD. In order to determine the production of dry matter in irrigated and with LSD fertirrigation, an experiment was carried out in the Farm-School of the University of Uberaba - MG, Brazil, with net-sprinkler irrigation system, applying 0, 50, 100 and 200 m3 ha-1 year-1of LSD. There was significant effect among the doses of LSD in the production of dry matter, occurring additions of production with the increasing the doses. The supply of 200 m3 ha-1 year-1 of LSD made possible the production of 5,928 kg of the forage dry matter for the cycle of 28 days.