Chinese cabbage fertilization method
1. Increase the amount of organic fertilizer applied. The organic fertilizer contains various trace elements which are beneficial to the growth of Chinese cabbage. The application of organic fertilizer can significantly improve the quality of Chinese cabbage, increase the yield, and improve the disease resistance of Chinese cabbage. Generally, 3000-5000 kg of decomposed organic fertilizer is applied per mu.
2. Spray grass ash leaching solution. Starting from the rosette period of Chinese cabbage, 0.5% of the ash leaching solution is sprayed every 7 days for a total of 3 times, which can increase the yield by more than 15%.
3. Supplement calcium preparations. From the beginning of the rosette period, spraying 0.7% calcium chloride every 7 days and spraying 5 times in a row can effectively prevent calcium deficiency symptoms such as dry heartburn and improve the disease resistance of the plants.
4. Spray gibberellin. Starting from the heart of the cabbage, spraying 30 times of gibberellin can accelerate the growth of cabbage, promote the core, and increase the yield by about 17%.
5. Triacontanol. Cabbage is sprayed twice with 1ppm triacontanol during the balling period, with an interval of 10 days, which can increase the yield by about 20%.
6. Rare earth. The 0.03%, 0.05%, and 0.08% rare earth solutions were sprayed in the rosette stage, the ball-forming stage, and the core stage of the Chinese cabbage, respectively, which could increase the yield by more than 10%.
7. Potassium dihydrogen phosphate. 0.5% potassium dihydrogen phosphate was sprayed every 10 days from the rosette period of the Chinese cabbage for a total of 3 times, increasing the yield by about 13%.
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