Rendimento de matéria seca e taxa de decomposição de resíduos de cultivares de aveia preta submetidas a cortes

Abstract

Currently the black oat is one of the most important winter forage mainly deployed in the southern states of Brazil seeking to meet the need of feed, particularly dairy cattle in cold periods of food scarcity. This study aimed to evaluate the dry matter yield and rate of decomposition of waste oat cultivars submitted to courts. The study was conducted in the municipality of Severiano de Almeida / RS from May 15 to October 21, 2014. It can be seen with the study to cultivate Agro Zebu was the largest producer of green fodder, along with IAPAR 61, and producing 12410.00 12324.40 kg respectively. Regarding the production of residual dry matter to IAPAR was the largest producer with 3535.50 kg of dry matter in the cycle. The rate of decomposition and the half-life are directly related showing that IAPAR 61 and Common have a longer period of permanence of straw on the ground. Thus it can be concluded that the IAPAR 61 showed the best responses in all evaluations, and to cultivate more recommended for use in Severiano county region de Almeida, RS at the time of sowing.