Morphogenetic, structural and production traits of marandu grass under nitrogen rates in Neo soil

ABSTRACT Most sandy soils have low natural fertility and levels of organic matter, making nitrogen (N) fertilization essential. Thus, five doses N were applied (0, 75, 125, 175 225mg dm-³) in a randomized block design to evaluate the effects on morphogenetic, structural production characteristics Brachiaria brizantha cv. Marandu Quartzarenic neosoil. The did not affect height canopy. leaf elongation rate, final length number live leaves increased linearly at N. Leaf appearance stem lifespan, phyllochron, senescence rate tiller density showed quadratic response rates There was also an effect herbage mass, which linearly. cultivated neosoil requires higher N, dm-³. Under these conditions, increases its productive are observed. These findings may be repeated most fertile with greatest capacity supply