Fecha de publicación: 31/05/2022 Fuente: Wipo Tobacco Agriculture The utility model relates to the technical field of tobacco agriculture, in particular to a convenient device capable of collecting root exudates of flue-cured tobacco in situ. Comprising a root exudate collecting device, a sample introduction device for simulating soil nutrition and a root exudate storage device, the root exudate collecting device is obliquely arranged, the root exudate storage device is a needle-cylinder-shaped PVC pipe, a latex cotton plug is arranged at the upper end of the needle-cylinder-shaped PVC pipe, and the needle-cylinder-shaped PVC pipe is connected with the sample introduction device for simulating the soil nutrition through a drainage pipe; a nipple device is arranged at the bottom of the needle-cylinder-shaped PVC tube, a valve switch is arranged on the nipple device, the nipple device is connected with a root exudates storage device through a drainage tube, and glass sand is filled in the needle-cylinder-shaped PVC tube; the device is used for solving the problems of large workload, more damaged roots and low precision in the traditional plant root exudates collection process.