Recently, vegetable growers reported that the celery hollowing phenomenon planted last year was more serious, affecting product quality and taste. This year's celery was quickly planted. What measures should be taken to prevent the celery hollow?
The hollow symptom of celery refers to the upward development from the base of the petiole, and a white floc-like corked tissue appears in the hollow part. The growth of celery during lack of water and fertilizer, uneven fertilizer or water supply or excess fertilizer, dry, low temperature, harvested too late, spray gibberellin concentration is too large, too many times and other factors may induce hollow.
In response to the etiology, farmers can take the following measures to prevent celery hollow:
1. Choose suitable plots for planting. Soil pH is better with neutral or slightly acidic, and it is forbidden to plant clay and sandy soil.
2. Use fine varieties such as American celery, Tianjin solid celery, Bailey celery, and Ventura.
3. The growth environment requires cool and moist, the daytime temperature of 15 °C ~ 23 °C is appropriate, the maximum does not exceed 25 °C, night 13 °C ~ 18 °C, the ground temperature in 13 °C ~ 18 °C is appropriate.
4. Water and fertilizer management timely and appropriate. The base fertilizer is sufficient and applied uniformly. About 5,000 kg of high-quality organic fertilizer is applied per mu. It is best to apply 100 to 200 kg of fermented chicken manure or about 15 kg of diammonium phosphate. , About 10 kilograms of ammonium sulfate per acre with water or fermented human waste.
During the growing season, the topdressing fertilizer is mainly composed of quick-acting nitrogen fertilizer and potash fertilizer, each time about 20 kilograms per mu, topdressing once every 15 days or so, using small water for pouring, not watering, keeping the soil moisture at 60% to 80%, and pay attention to Drainage prevention.
5. If the symptoms of boron deficiency can be used 0.1% boron fertilizer solution, mu spray 40 kg, 5 to 7 days spray 1, even spray 3 times. Foliage spray should be selected as the afternoon, with the leaves wet and not as good; found that there are signs of decoloration when light leaves, you can spray 0.1% urea liquid fertilizer or chlorophyll and other leaf fertilizer. Gibberellin can promote the growth of celery, and can be used to increase production when adequate water and fertilizer supply, proper management measures, and thick celery itself are used. The application of gibberellin is 30 days and 20 days before harvest. At a concentration of 20 mg/kg, when spraying gibberellin, 2% urea and potassium dihydrogen phosphate can be added to the solution.
6. Timely control of pests and diseases and promote normal plant growth. Timely harvesting, 80 to 90 days after planting is the best harvest period, to seize the opportunity to harvest.
In agriculture, Estrous Synchronization is used (particularly in the dairy and beef industries) to facilitate breeding by artificial insemination. We have Progesterone Injection, Cloprostenol Sodium Injection and Testerone Propionate Injection and Estradiol Benzoate to solve farmers' different difficultites in aninal 's estrous synchronization.
Estrus Synchronization Medicine
Estrus Synchronization Medicine,Chorionic Gonadotropin for Animals,Estrous Synchronization,Estrus Synchronization for Vet
Jiangxi Institute of Biological Products Inc. , https://www.jxinstitute.com