Diseño agronómico de un sistema de riego parcelario para el Proyecto Chambo – Guano, Fase II, para la comunidad Chingazos Módulo 11, cantón Guano.

Abstract

The aim of this study was to develop the agronomic and hydraulic plot design and its components in module 11. The area under study has 39.34 ha net irrigated with 92 family representatives (52 men and 40 women). The crops present in the area were corn, alfalfa, lemon and tuna with an effective rooting of 60 cm, with a net sheet of 18.13 mm, the efficiency of the mini-spray method was 85%, giving as a result a gross sheet of 21, 33mm. The water requirement was 3.02 mm day-1, with a fictitious continuous flow of 0.35 L s-1 ha-1. The emitter selected based on a consensus and agroecological zone was a mini wobbler at a distance of 6 m between mini sprinklers and 6 m between lines, the consumption is 0.07 L s-1 with operating intervals between 10 to 17 m.c.a., the operation time for each issuer was 3 hours with 7 days between intervals. For the plot hydraulic design, it was worked with average speeds between 0.6 and 3 m s-1 and head losses based on the Hazem-Williams equation. The diameters and thickness of the covers were a function of the flows, pressures and speeds. This study incorpored a crop that generates profitability to justify irrigation technification, in this sense, the proposal with the project promoted the implementation of lemon, reaching a profit per family of US$1023 in the ye, versus a profit of US$241. no project. The study showed a positive profitability with the indicators VAN 165178, IRR 23.13%, B/C 1.23 and PRI 6.01 years. The investments in the project were the following: the parcel system with US$244,602.48, per hectare with US$6,217.65 and per family with US$2,658.72.