Análisis del índice de estrés hídrico (cwsi) a partir del uso de imágenes térmicas de un cultivo de papa (solanum tuberosum) en la vereda alto del sote en el municipio de Motavita Boyacá.

Abstract

The water resource is of great importance for agriculture because it is one of the main factors for its productivity, so it is necessary to estimate the behavior of plants in relation to water availability, which leads to implement different systems for monitoring them to increase the efficiency of productivity in agriculture, Among these is the water stress index (CWSI), which allows estimating the ratio of transpiration in plants with respect to the water absorbed by their roots; consequently, if transpiration is higher than absorption, it would generate a case of water stress and subsequently the possible death of the plant. This study seeks the collection of information regarding potato crops and the behavior that causes the CWSI, identified by taking thermal images that allow knowing the state of transpiration of the plant to later make a comparison where water stress is present in the plant, thus relating the development in its phenological cycle so new technologies and techniques are proposed with which farmers will benefit through a proposal relevant to the efficient use of water resources. The methodology for the achievement of this purpose is divided into the following stages:

1) Compilation of information regarding papa crops, the index of water stress and the behavior that this exerts on the crop within the same and the influence on its development.

2) Evaluation in the study area by taking photothermal images that allow knowing the state of transpiration in the plant,

3) Analysis of water stress throughout the phenological cycle in the crop to formulate a strategy in the efficient use of water resources, thus stipulating the appropriate water resource management in relation to greater effectiveness in crops and thus contribute to a sustainable agriculture from the water point of view.