Fecha de publicación: 15/12/2020 Fuente: Wipo Tobacco Agriculture The utility model discloses an efficient and controllable tobacco off-ground seedling growing device which comprises a supporting frame, a heating layer, a heat preservation layer, a water pool, a temperature sensor, a solar cell panel and a single-chip microcomputer controller, multiple layers of water pools are vertically arranged on the supporting frame at intervals, the heating layer is arranged at the bottoms of the water pools, and the heat preservation layer is arranged at the bottoms of the heating layer. A temperature sensor connected with the single-chip microcomputer controller is arranged in the pool, the output end of the single-chip microcomputer controller is electrically connected with a heating element of the heating layer, the solar cell panel is arranged on the side faceor the top end of the supporting frame, the power output end of the solar cell panel is electrically connected with the storage battery, and the power end of the single-chip microcomputer controlleris electrically connected with the storage battery. The single-chip microcomputer controller is arranged on the side face or the upper portion of the supporting frame. According to the utility model,the plurality of water pools are arranged, the solar cell panel is connected with the heating layer, and the heat preservation layer is matched, so that tobacco seedling culture solution in the waterpools can be subjected to heat preservation and heating, the warm and comfortable development temperature of tobacco seedlings is ensured, the seedling raising space is saved, the survival rate of thetobacco seedlings is greatly improved, and the seedling raising time is shortened.