Comparison the effects of the sewer water and well water on growth and development of cotton

Abstract The study was developed with the objective of comparing the effects of irrigation with sewage and well water, on the diameter of stem, height of plants, leaf area and productivity of the colored cotton. The experiment was carried out in Pau D‘Arco’s Farm, municipal district of Lagoa Seca, PB. The treatments corresponded to two types of water (sewage and well water). Treatment 1 was irrigated with well water without fertilization, treatment 2 with well water and fertilized with organic matter, treatment 3 was irrigated with water of a polishing pond and treatment 4 irrigated with water of decanted. In a general way, sewage water, because of the nutrients, abundance increased the diameter of stem and the height of the plants when compared with plants irrigated with well water. It was evident that the treatment with the water of decanted sewer, presented larger leaf area and larger productivity when compared with plants irrigated with well water.