Adjustable cultivation device for agricultural planting and cultivation method

The invention discloses an adjustable cultivation device for agricultural planting and a cultivation method, and belongs to the technical field of seedling culture equipment.The adjustable cultivation device for agricultural planting and the cultivation method comprise two supporting plates, the upper end faces of the two supporting plates are fixedly connected with supporting frames, and the upper end faces of the two supporting plates are fixedly connected with the supporting frames; the corresponding sides of the two supporting frames are vertically and symmetrically connected with first rotating shafts in a rotating mode, the left side and the right side of the outer surface of each first rotating shaft are symmetrically and fixedly connected with first gears, the outer surfaces of the vertically-corresponding first gears are rotationally connected with chains, and the annular outer surfaces of the chains are hinged to a plurality of connecting rods. Compared with the prior art, workers do not need to mov