Thompson R, Gallardo M, Joya M, Segovia C, Martínez-Gaitán C, Granados M. Evaluation of rapid analysis systems for on-farm nitrate analysis in vegetable cropping. Span. j. agric. res. [Internet]. 2009Mar.1 [cited 2024Apr.29];7(1):200-11. Available from: https://sjar.revistas.csic.es/index.php/sjar/article/view/412