Modelagem agrometeorológica da alface (Lactuca sativa) cultivada em diferentes condições edafoclimáticas no Estado da Paraíba.

Abstract

The climatic conditions of the semiarid region is a challenge for agricultural production, especially for family farmers who, in addition to climatic factors, suffer from a lack of knowledge and technology for better production performance. Another water-related problem found in the region is the lack of water reservoirs, high evaporation from existing reservoirs, ineffective storage and loss of water as irrigation systems are ineffective, making agriculture unsustainable. Family farmers are responsible for part of the vegetable production in the region, usually close to the urban perimeter of the municipalities. Lettuce is a typical vegetable of temperate regions, which makes its production even more challenging in the semiarid region. However, what was presented, this study aimed to observe and analyze the production of curly lettuce of the "Elba" type under family farming conditions and later, an experiment was carried out with the use of technology to determine the water balance of the culture with the support of from a soil moisture probe. In addition to the use of the probe, a drone coupled as an infrared camera was used to determine vegetation indices. For productivity, in both moments simulations were made to compare with the field results through the AquaCrop model. Both the model and the field result showed an excessive use of water in the productivity of family farming, which was proven in the experiment, however, the productivity of family farming was higher, which indicates that the other parameters are responsible for better results, such as temperature and humidity. air relative