Necesidades hídricas del pasto guinea tanzania utilizando lisimetría de drenaje en época seca y lluviosa en Chone provincia de Manabí Water requirements of guinea grass tanzania using drainage lysimetry in dry and rainy season in Chone province of Manabí

Abstract

This study determined the water requirements of the Tanzania Guinea grass crop by taking measurements with a lysimeter, in order to evaluate the ideal parameters and improve the development of the crop. This research is important because it allowed to know the water needs of guinea grass Tanzania at different times of the year in Chone. In the methodology, a quantitative and explanatory approach was applied to establish the causes and effects of the water needs of the grass. An experimental design was used and quantitative information was processed in CROPWAT and spreadsheets. Measurements were made in different seasons, with specific soil preparation and controlled seeding. Indirect methods were applied with lysimeters and tensiometers. The results reveal that, in the rainy season, ETo values (0.86; 0.91; 0.75) are higher than those obtained in the dry season (1.08; 1.15; 0.99), and that Kc values establish three irrigation phases. In addition, the Tr results are lower in December, determining that the water requirements of the pasture are higher (107.16 mm) in the dry season and lower (90.97 mm) in the rainy season. It is concluded that the crop coefficient is related to the stages of development of the Tanzania Guinea grass, also the water requirements in the rainy season are lower due to factors such as humidity and rainfall that limit effective irrigation. For future research, it is recommended to test in other soil varieties of the region