Adubação nitrogenada e irrigação com água residuária no cultivo de pimenta malagueta.

Abstract

With the addition of the world population, an increase in demand for drinking water and natural resources, and enhanced in semi-arid regions, where water is considered a limiting factor, it is necessary to seek complementary alternatives to this small water supply. The chili pepper is one of the species most commonly used in cooking world by presenting the strong flavor, making it one of the most important spices and can be used fresh or canned. Given what has been exposed the objective of this study was to evaluate the influence of three levels of nitrogen fertilization, 50, 100 and 150 mg of N, as well as better irrigation depth that suits chilli pepper cultivation, which were used three blades 50, 75 and 100% of the field capacity. The experiment was conducted in a greenhouse belonging to UFCG-CDSA, located in the municipality of Sumé, PB, Brazil, the experiment was from June to October 2015. The experimental design was a randomized complete block design with four replications. The evaluated characteristics were weight of green fruit, ripe fruit weight, total weight of fruits per plant and the best blade that fits chilli. The amount of nitrogen provided more than the yield was 150mg / kg and better water depth was 229 mm, equivalent to 50% of field capacity.