Effect of biochar on the greenhouse gas emissions from farmland and its physicochemical propertiesXiao Yi Cheng, Yu Lan, Zun Qi Liu, Xiao Lin Liu, Wei Miao, Tian Yi He, Xu Yang, Jun Meng and Wen Fu ChenMATEC Web Conf., 63 (2016) 03010DOI: https://doi.org/10.1051/matecconf/20166303010