Estudo comparativo do manejo de sistema e irrigação entre sulcos revestidos e sulcos sem revestimento, de baixo custo para agricultura familiar

Abstract

The importance of water saving in traditional furrow installation is increasing since it is the most important aspect of this irrigation method. Specifically the furrow system hardly achieves efficiency in the use of irrigation water resources being equivalent to 60% in most cases. Based on the need for this transformation and conversion of irrigation application technology, the uniqueness of covered furrows arises, in which the present work aims to analyze the capacity of this irrigation system to reduce the amount of water resources meeting the needs of the crop. The evaluation was initiated in August 2022 and conducted in the area of farm school in the campus II, of the Pontifícia Universidade Católica Goiás, Goiânia-GO. The full irrigated area of the experiment was 100 m², consisting of two lateral rows, with spacing of 2.5 m and 8 plants distributed in these two rows (4 plants). The development of the passion-fruit after transplanting was then adopted and evaluated, measuring height and leaf area to compare through the experimental design if there was a difference between the treatments (furrows). According to the statistical analysis between the treatments, the furrow covered with canvas, demonstrated to have the same efficiency of the traditional method, applying the same net blade, however, with great economy of water. The results showed a difference in gross slurry of 11.4 mm, or 11.4 L/m² per shift less for application in the furrow covered, obtaining in full 56,088 L/ha per shift of water economy