摘要 |
PURPOSE: An environment-friendly prefabricated ridge between rice paddies is provided to prevent environmental contamination because agricultural chemicals are not required. CONSTITUTION: An environment-friendly prefabricated ridge between rice paddies comprises protection covers(1), height regulating plates(5), irrigation gates(2), and auxiliary protection covers(100). The tops of the height regulating plates are inserted into the inner side of the protection covers and are fixed to the protection covers through bolts and nuts. The irrigation gates are located at the front or rear surfaces of the protection covers and are connected to the protection covers. The auxiliary protection covers are connected to the protection covers or the irrigation gates. |