Nejadi J, Raoufat MH. Field performance of a pneumatic row crop planter equipped with active toothed coulter for direct planting of corn in wheat residue. Span. j. agric. res. [Internet]. 2013Apr.2 [cited 2025May4];11(2):327-34. Available from: https://sjar.revistas.csic.es/index.php/sjar/article/view/2632