Combined irrigation system for greenhouse planting

The invention belongs to the field of agricultural irrigation, and relates to a combined irrigation system for greenhouse planting, which comprises an irrigation frame, two roller grooves are fixedly formed in the front portion and the rear portion of the upper side of the irrigation frame, a roller is rotationally arranged on each roller groove, connecting rods are rotationally arranged on the front roller and the rear roller, and motors are fixedly arranged at the two ends of the front and rear connecting rods. Precise irrigation of crops can be realized, spraying on the crops in a single block can be realized, and the spraying range of each nozzle can be adjusted, so that the problem that the crops at corners in a greenhouse cannot be irrigated or the irrigation amount is small is well solved, automatic switching between spray irrigation nozzles and atomization nozzles can be realized, the problem that the nozzles are blocked is solved, the problem that the nozzles are replaced due to the blockage of the n