介绍华南热带、亚热带地区“稻—稻—青瓜—菜豆”轮作套种高效栽培技术,一年四熟的粮菜栽培模式,集水稻生产和蔬菜生产为一体,充分利用土地,一地多收,经济效益高,且有效减轻土传病害和克服蔬菜连作障碍,减少病虫基数,抑制蔬菜多种病虫草害的发生,从而减少农药投入,提高蔬菜质量安全的生产水平。 This paper introduces the high-efficiency cultivation techniques of crop rotation in South China’s tropical and subtropical regions, the cultivation pattern of crops with four crops a year, and the combination of rice production and vegetable production, making full use of land and more land The utility model has the advantages of high economic benefit, effectively reducing soil-borne diseases and overcoming obstacle of continuous cropping of vegetables, reducing base of diseases and insect pests, inhibiting occurrence of multiple diseases, pests and weeds of vegetables, thereby reducing pesticide input and raising vegetable production quality and safety.