Lettuce in an economic plot integrated to the irrigation system cuca de umbu in the municipality of Salgueiro, Pernambuco, Brazil. Green Journal [Internet]. 2019 Apr. 1 [cited 2026 Sep. 12];14(2):204-10. Available from: https://www.gvaa.com.br/revista/index.php/RVADS/article/view/6113