| Abstract: In order to explore the effects of different irrigation methods on mineral elements absorption and quality of Chinese cabagge, 'Chunyou No.5' was used as the experimental material. Four irrigation methods including border irrigation, micro sprinkling belt, border irrigation on fi lm and micro sprinkling under fi lm were set up in the greenhouse. The quality indexes such as soluble sugar, vitamin C and cellulose content and nitrogen, phosphorus and potassium content of Chinese cabagge under different treatments were compared and analyzed. The results showed that micro sprinkling under fi lm and border irrigation on fi lm could promote the growth of upper and underground parts of Chinese cabagge, promote the absorption and utilization of nitrogen, phosphorus and potassium, and improve the quality of Chinese cabagge. Compared with border irrigation, the contents of soluble sugar and vitamin C of Chinese cabagge in greenhouse were significantly increased by 48.55% and 63.55%, respectively, and the content of cellulose in outer petiole was signifi cantly decreased by 22.32% by the treatment of micro sprinkling under fi lm. Micro sprinkling under fi lm was most benefi cial to improve the quality and nutrient absorption of Chinese cabagge. |