Cai, Yuxiao, Luyu Liu, Wei Zhang, Sen Xing, Xiaohui Liang, Mingjie Gao, Hewei Yu, et al. 2023. “Effects of Adding Pyrochar and Hydrochar to Calcareous Soil on Nutrient Uptake by Maize”. BioResources 18 (2):2981-97. https://ojs.bioresources.com/index.php/BRJ/article/view/22273.