Produção do cafeeiro conilon empregando déficit e alternância na irrigação por gotejamento
Carregando...
Data
2026-01-20
Autores
Lopes, Vanessa Chaves
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal do Espírito Santo
Resumo
Brazil is the world's largest coffee producer, and coffee farming in the country has expanded into areas with significant climatic variability, which is exacerbated by current changes in temperature and rainfall patterns, presenting significant water supply problems for coffee plants. Among the techniques used for water conservation, drip irrigation with Controlled Alternating Partial Irrigation of the Root Zone (APRI) and Irrigation Deficit (DI) stand out. The experiment was implemented in the field in July 2019 and evaluated until July 2024, using genotypes 143. Two drip irrigation tubes were installed per row of plants, one on each side of the root system. The amount of water applied to the treatments was calculated from the crop evapotranspiration for localized irrigation (ETcloc). The experimental design adopted was randomized blocks, with nine treatments and four replications. The treatments included replacing 50% of the crop evapotranspiration for localized irrigation (ETcloc) at intervals of 3, 7, and 14 days, and 100% of ETc at the same intervals. It also included a treatment with controlled deficit irrigation, applying 50% of ETc, in addition to fixed irrigation with 100% of ETc applied by two drip lines and fixed irrigation with 100% of ETc applied by one drip line on only one side of the root system, representing the standard irrigation management in the region. Productivity, yield, coffee bean classification by sieve, and water use efficiency (WUE) were evaluated. Average productivity, yield, and sieve classification did not show differences according to Tukey's test. Therefore, in general, the treatments that received 50% of the replacement blade obtained the highest EUA values.
Descrição
Palavras-chave
APRI , Déficit hídrico , Coffea canephora