Silage corn in succession to different green manures in the cerrado

Resumo

This study evaluated the effects of different green manures on the production of fresh and dry matter from corn, irrigated to silage, grown under no-tillage. The study was conducted in Iporá, Goiás, the experimental area was in the Cerrado Domain underlain by soil classified as Dystrophic Litholic Soil. The green manure treatments were: CON – Control (fallow area); CRO – Showy crotalaria; MAV – Mavuno brachiariagrass; LL – Lab-lab; and AG – Aries grass. At 88 days after emergence, the corn was harvested and a productive evaluation of the yields of fresh and dry matter was conducted. For the total fresh matter, Mavuno and showy crotalaria produced gains of 26% and 18%, respectively, when compared to the control. Mavuno resulted in the greatest difference for both dry and fresh matter compared to the other green manures and the fallow soil control. Crotalaria also resulted in better fresh matter productivity than the control.