Agronomic traits and chemical composition of forage sorghum plants fertilized with poultry litter and fermentative profile of silages

It is essential to determine the productive potential and quality of forage sorghum (Sorghum bicolor (L.) Moench) silages using alternative organic inputs, such as poultry litter (PL), intending higher efficiency, sustainable development animal production systems in world. Poultry fertilization has been widely used crops for silage production, where it believed that with PL can influence fermentation profile composition silages. The objective this study was evaluate different levels on agronomic characteristics ‘BRS Ponta Negra’. For determination characteristics, randomized blocks design adopted, treatments were levels: 5, 10, 15 Mg ha-1. While evaluation completely randomized. With fertilizer doses, a linear increase observed plant height, stem diameter, leaf length, consequently fresh DM productions. Linear reduction neutral detergent fiber, while crude protein pH contents increased linearly levels. Quadratic effect occurred gas effluent losses. may be an source supply N needs under experimental similar conditions. Associating productivity cultivation level 13.46 ha-1 recommended presenting highest efficiency good nutritional silage.