Effects of different tillage methods and straw-returning on soil organic carbon content in a winter wheat field
不同耕作方式和秸秆还田对麦田土壤有机碳含量的影响

A two growth seasons experiment was conducted to study the effects of different tillage methods,straw-returning,and their interaction on the dynamic change of organic carbon content in 0-20 cm soil layer during the whole growth period of winter wheat.An obvious change was observed in the soil organic carbon content.Treatments with straw-returning had higher soil organic carbon content than treatments with no straw-returning,and conservation tillage induced higher soil organic carbon content than conventiona...