1ZLcombined land preparation machine is an improved machine, which absorbs the advantages of similar products at home and abroad and can meet the working requirements of land preparation at different conditions in dry-farming areas. As a substitutive product for the existing land preparation tools, it can replace the traditional ones such as disc harrow, notched harrow and press roller.
    During working, the pre-positioned notched harrow and post-positioned disc harrow will perform scarification and earth breaking, and afterwards, the grader will level the soil and the breaking roller will break and roll the soil further. At the same time, the thrown-up clods, and fine soil grains will fall down on the earth surface, cutting off the underground vapor and forming an ideal seedbed which is spongy at the top and solid at the bottom.