Composição química-bromatológica do capim Urochloa decumbens submetido a doses de nitrogênio e inoculado com Azospirillum

Abstract

Among nutrients, therefore, nitrogen (N) increases the agricultural cost, consuming more energy to be produced and later the most polluting, considered, usually the most limiting to plant production. Therefore, the objective of this work was to evaluate the nutrient foliar content, chemical and physiological characteristics of Urochloa decumbens submitted to nitrogen fertilization and the application of Azospirillum brasilense. The experiment was carried out in a greenhouse, with a completely randomized design with 40 dismembered plots, in a 2x5 factorial arrangement. The design was defined by the combination of inoculated and non-inoculated plants with growing doses (0, 50, 100, 150 and 200 kg ha-1 ) with four replicates. Chemical- bromatological analyzes of neutral detergent fiber (NDF) and crude protein. The N, K, Fe, Cu, and Mg nutrient contents were significantly different in the experiment, with a higher crude protein production peak at 100 kg of N ha1 regardless of the treatment (with and without inoculation) In neutral detergent fiber in treatments without inoculation.