Avaliação do manejo de irrigação da palma de óleo

Abstract

The Oil Palm is a species of African origin, predominant in the Amazon region, due to the abundant need for water for its development. Its productivity can be affected, at a certain time, due to the lack of enough water for the plant, being necessary the use of irrigation for this period. This work object to evaluate the management of irrigation by micro-sprinkler of oil palm and the efficiency of water use in each treatment tested through its productivity under different water conditions. The experiment was conducted in a total area of 2.94 hectares, with two cultivars totaling 384 plants. The design used was randomized blocks with split plots, with three replications. The source of variation of the plots was represented by the treatments with irrigation of 80, 60, 40, 20 and 0% of the reference evapotranspiration (ETo). To monitor the evapotranspiration process, data were collected daily at the meteorological station and estimated using the Penman-Monteith method. According to the statistical analysis, the treatment with 80% of field capacity showed the best percentage in relation to productivity and production according to the time of year, regardless of field capacity, occurred in the month of August. Thus, we can conclude that the best performance was in the treatment with an index of 80% of its field capacity and the efficiency of water use showed significant results related to the productivity of the oil palm.