A way to increase the yield of celery

According to the experiment, the best concentration of gibberellin to promote the growth of celery is 40 times 10 minus 6 power to 90 times 10 negative 6 power. During the normal growth period, foliar spray was applied for 2 to 3 times with an interval of 2 weeks. After spraying gibberellin solution, celery could promote cell division and cell expansion, and the nutrient absorption and conversion rate reached the peak after 8 hours of use. If the nutrition supply of celery is insufficient, the leaf color will turn yellow, the stem will be split, and the stem will be thin and weak, which will directly affect the yield and quality of celery. Therefore, when spraying gibberellin solution, it should be combined with foliar fertilizer to supplement nutrients. The conventional mixed concentration formula of foliar spraying is 0.2% potassium dihydrogen phosphate, 0.03% borax and 5% brown sugar. Note: gibberellin is an acidic preparation, it is forbidden to mix with alkaline preparation. During the spraying period, the soil is moist but not wet, the plant must be strong and should not be sprayed on rainy days.