Abstract: Through the plot experiment, the effect of agricultural waste return on the agronomic traits of Chinese cabbage （Brassica chinensis L.） was explored. The results showed that the effects of different amounts of discarded residue on the agronomic traits of Chinese cabbage were different, and compared with the control, the effect of high amount returning to the field was the best, and the increase in the height of Chinese cabbage plants, leaf length, leaf width, petiole length and fresh weight of each plant were increased by 20.8%, 15.8%, 26.1%, 26.2% and 35.9%, respectively, which were significantly higher than the control; The direct return of sawdust to the field had an inhibitory effect on the agronomic traits of Chinese cabbage, and it should be fermented and decomposed; The effect of tomato straw medium returning to the field was significant higher than the control, compared with the control, the plants height of Chinese cabbage, leaf length, leaf width, petiole length and fresh weight of each plant were increased by 15.7%, 11.5%, 39.4%, 15.1% and 19.8%, respectively; The plants height of Chinese cabbage, leaf length, leaf width, petiole length and fresh weight of each plant for discarded residue returning to the field were significantly higher than the control, the height, leaf length, leaf width, petiole length and fresh weight of each plant were increased by 12.4%, 7.9%, 18.2%, 14.3% and 22.0%, respectively. In short, Chinese cabbage growth index of discarded residue returning to the field are better than those of tomato straw and sawdust returning to the field, which can be promoted and applied in future vegetable production.

Key words: agronomic traits, Chinese cabbage（Brassica chinensis L.）, agricultural waste returning to the field