This paper focused on the problem of tobacco stalks and roots clearing in the hilly mountain area of Fujian province and especially focused on the issues that need to be resolved in the field of tobacco cultivation such as the mechanized clearing of tobacco stalks,root residues,and root and soil separation difficulties,analyzed the physical characteristics of tobacco field soil and tobacco at harvest.Based on that,researched the mechanism of the key components of tobacco stalks and roots clearing,studied an...