Fu, Tongcheng, Zuxin Liu, Yang Yang, and Guang Hui Xie. 2018. “Accumulation and Concentration of Nitrogen, Phosphorus and Potassium in Jerusalem Artichoke in a Semi-Arid Region”. Italian Journal of Agronomy 13 (3), 185-93. https://doi.org/10.4081/ija.2018.906.