ASSIMAKOPOULOU, A., SALMAS, I. ., KOUNAVIS, N., BASTAS, A. I., MICHOPOULOU, V., & MICHAIL , E. (2019). The Impact of Ammonium to Nitrate Ratio on the Growth and Nutritional Status of Kale. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 47(3), 848–859. https://doi.org/10.15835/nbha47311466