TABLE 5. IVTobit estimation of the effect of agricultural mechanization on agricultural revenue and charge of return. In terms of control variables, the education degree for each member of family, normal age of relatives labour force, location of farmland, proportion of farmland irrigation, proportion of greenhouse space, and kind https://agricultural-machinery-ma20629.estate-blog.com/26349140/the-basic-principles-of-agricultural-machinery-business-plan-pdf