(一)前言水稻中耕是我国农民进行田间管理,获得高产的重要措施之一。实践证明,中耕不仅能除草,而且可疏松土壤,使土壤通透性好,从而提高地温,增加土壤含氧量,并可混合肥料、利于根系吸收。这些 (I) Preface Rice cultivating is one of the important measures for farmers in our country to carry out field management and obtain high yield. Practice has proved that cultivation can not only weeding, but also loose soil, the soil permeability, thereby increasing the ground temperature, increase soil oxygen content, and can be mixed with fertilizer, which will help the root absorption. These ones