Vetiver grass (Chrysopogon zizanioides (L.)) has high agronomic potential and possibilities of use as a source of green manure. Thus, the objective of this work was to evaluate cutting heights of vetiver grass, fertilized in coverage with doses of manure, to use it as a cover plant in organic agriculture. The experiment was carried out under field conditions, in Campos dos Goytacazes, Rio de Janeiro. The experi...