Fecha de publicación: 10/01/2020 Fuente: WIPO "tobacco agriculture" The utility model discloses a water and fertilizer integrated irrigation device for tobacco planting. Sliding grooves are formed in the inner walls of the two sides of a water-fertilizer-liquid box body of the irrigation device. A sliding block which slides in a matched manner is arranged in the sliding chute; the sliding blocks are connected through a floating plate; a contact handle is arrangedat one end of a switch valve of the water-fertilizer-liquid box, a pressing handle is arranged at the other end of the switch valve, the contact handle extends into the sliding groove and makes intermittent contact with the sliding block, the pressing handle makes intermittent contact with the power switch, the switch valve is driven to rotate through intermittent contact between the sliding blockand the contact handle, intermittent contact between the pressing handle and the power switch is controlled, and switching control over the water pumping device is achieved. According to the irrigation device, the floating plate is controlled to float upwards or descend through the liquid level in the water-fertilizer-liquid box body to drive the sliding block to slide downwards along the slidinggroove, on-off of the water pump is controlled, idling of the water pump is prevented, the structure is simple, idling of the water pump can be effectively prevented, meanwhile, the uniformity of water-fertilizer irrigation is improved, and the requirement for tobacco agriculture refined planting is met.