López M, Castro A de, Gutiérrez J, Leidi E. Nitrate and potassium concentrations in cotton petiole extracts as influenced by nitrogen fertilization, sampling date and cultivar. Span. j. agric. res. [Internet]. 2010Mar.1 [cited 2026Aug.5];8(1):202-9. Available from: https://sjar.revistas.csic.es/index.php/sjar/article/view/1159