Rice husk ash and cassava wastewater application on oats culture (avena strigosa)

Abstract

The present work was conducted at the Campus of UEM - State University of Maringá, in the city of Umuarama, located in the Northwest of the Paraná State, and had as goal to analyze the effect of rice husk ash and cassava wastewater applied on the forages oats (Avena strigosa), without adding further conventional chemistry fertilizers and techniques of soil correction. The treatments had been distributed in a DIC, in a factorial project of 6 x 3, in the Arenic Kandiustults (PVd) soil, corresponding the six dosages of rice husk ash (0, 10, 20, 30, 40 and 50 t ha-1) and three dosages of wastewater in its vegetative phase (0, 40 and 80 mm). The oats has answered the application of the parameters. For green mass production, the best treatment was the combination of 80 mm of wastewater with 30 t ha-1 of ash and for seeds, the productions had been increasing for the dosages studied.