Abstract: A seedling-growing sheet (1) is in the form of a laminate body (2) consisting of a band-like support member (3) and a porous sheet body (4) laminated on said support member (3). A large number of receptacles (6) for housing rice seeds (15) are formed in the sheet body (4) of the laminate body (2). These receptacles (6) are arranged apart from each other in the longitudinal direction of the support member (3). Formed in the laminate body (2) are cutting perforations (8) consisting of a large number of cut lines (9) along which planting pieces (10) each having at least one receptacle (6) are cut away from the laminate body (2). These cutting perforations (8) are arranged apart from each other in the longitudinal direction of the laminate body (2).

Abstract: A seed top of foamed cells is constructed such that a porous sheet having open cells is affixed to one surface of a thin support band extending in a band-like configuration with its widthwise direction being an up-and-down direction, and accommodation recesses for accommodating seedling seeds are provided in the porous sheet. It is possible to reduce the size and weight of the seedling raising sheet used for raising seedlings and to eliminate the need for soil in raising seedling, thereby enabling an industrial mass-production of the seedling raising sheet.

Abstract: A four-wheeled-electromotive cart includes a single motor and a direct axle driving mechanism for driving the axle of left and right front wheels by means of the motor. The single electric motor would cause no rotation speed difference between the left and right front wheels and hence constantly permits a smooth linear movement of the electromotive cart. The direct axle driving mechanism includes a relay shaft connected to the output shaft of the electric motor, a small-diameter bevel gear mounted on a lower end of the relay shaft, and a large-diameter bevel gear engaging with the small-diameter bevel gear. The front-wheel axle is spline-connected to the large-diameter bevel gear so as to be driven by the motor via the direct axle driving mechanism. Thus, the electromotive cart is allowed to smoothly start moving without sudden jolts or shocks caused by start of the motor rotation.