Integrated Sustainability Evaluation of Field Environment for the Combinations of Tillage and Cover Crop Practices by FAO-SAFA (sustainability Assessment of Food and Agriculture Systems) Applied with a Modified Rating Method

Rica Imafuku*, Masakazu komatsuzakI**, Takahiro Ito***, Yinghui mu**** and Hajime arakI***** *Graduate School of Environmental Science, Hokkaido University, **Center for International Field Agriculture Research & Education, College of Agriculture, Ibaraki University, ***Faculty of Agro-Food Science, Niigata Agro-Food University, ****College of Agriculture, South China Agricultural University, *****Field Science Center for Northern Biosphere, Hokkaido University, Present affiliation: Faculty of AgroFood Science, Niigata Agro-Food University