Method for alternate culture of paddy rice, shrimps and crabs

The invention discloses a method for alternate culture of paddy rice, shrimps and crabs, and relates to the field of alternate culture of paddy rice and aquatic products. The method is characterized by comprising the following steps: excavating trenches; adding an ultrasonic bird repeller and a water quality sensor; fertilizing; planting aquatic plants; disinfecting; delivering young shrimps; managing birds and water quality; carrying out rice seedling raising; selling crayfish; farming paddy rice; carrying out rice transplanting; delivering and managing crabs and selling the crabs. The methoddisclosed by the invention has the advantages of reasonability, convenience in implementation and obvious effects. 种水稻、虾和蟹轮养的方法，涉及水稻和水产轮养的领域，其特征在于：包括以下操作步骤，开挖漕沟、加装超声波驱鸟器和水质传感器、施肥、栽种水草、消毒、投放虾苗、鸟与水质管理、水稻育苗、出售小龙虾、水田耕作、水稻插秧、螃蟹投放及管理、螃蟹出售。本发明方法合理、实施方便、效果显著。