1, spraying potassium dihydrogen phosphate cabbage sitting period to the ball into the ball, every 7-10 days spraying a 0.3% -0.5% of potassium dihydrogen phosphate solution, even spray 2-3 times, generally increase the yield 15 % - 20%. 2. Spraying 0.03%, 0.05%, and 0.08% of rare earth solutions respectively during the sitting, balling and bagging phases of rare earth Chinese cabbage lotus can increase production by more than 10%. 3, spraying gibberellin with the heart 30-40 mg / kg gibberellin solution sprayed 1-2 times, can promote the heart, improve quality, increase production by 20%. 4, spraying calcium chloride cabbage sitting period to the heart of lotus, spray every 7-10 days a 0.7% calcium chloride solution, even spray 5 times, can prevent cabbage "dry heart." 5.Spraying grass and plants The beginning of the sitting period of the gray lotus and the spraying of 0.5% of the ash leaching liquid every 5-10 days before spraying into the ball can increase the yield by 15% and improve the quality.