Di Gioia F, Gonnella M, Buono V, Ayala O, Santamaria P. Agronomic, physiological and quality response of romaine and red oak-leaf lettuce to nitrogen input. Ital J Agronomy [Internet]. 2017 Mar. 6 [cited 2025 Jun. 10];12(1). Available from: https://agronomy.pagepress.org/index.php/agro/article/view/806