1. Frozen and frozen celery all over the place. Shandong Weifang region is rich in experience, large reserves, and good results. Every year, in addition to supplying local products, it is also sold in large quantities to the outside world. Liaoning Lvda, Yingkou and other places combined with local climatic conditions, the frozen frozen pit on the ground of Weifang was a semi-underground frozen pit, the thickness of the widening wall was 85cm, and the coldest weather was thickened to 30cm, and received good results. Frozen celery can be thawed in the same way as spinach. Or change the yin-shadow on the south side 5 to 6 days before the storage pit to the wind barrier on the north side (divide the barrier in advance when building pits), glazing on the cellar surface or cover with plastic film, and cover the soil A layer of defrosted soil is removed, leaving the last layer of thin soil to protect the celery below and thaw it slowly. 2. Preservation of celery storage in Beijing, Taiyuan, Tianjin, Liaoning and other places, the effect is also good. The width and depth of the false furrows in each place are approximately 0.7 to 1.5m, and their length is not limited. The celery is plucked with soil and rooted in a single plant or in clusters, and then flooded to flood the roots. Afterwards, the celery can be re-irrigated once or twice depending on the condition of the soil. In order to facilitate ventilation and heat dissipation in the trenches, every 1m or so, a bunch of stalks shall be placed between the celery, or the ventilation channels shall be dug upright on both sides of the ditch and at a certain distance. After the celery enters the ditch, cover it with a straw curtain, or make a shed cover on the top of the gully and cover it with soil. Leave the air vents at discretion. Afterwards, the cover is thickened as the temperature drops, blocking the air passage. Maintain the ditch temperature at 0°C or slightly higher throughout the storage period, and do not allow heating or freezing. 3. Atmosphere storage is generally considered to be 2% to 3% oxygen and 4% to 5% carbon dioxide, can significantly inhibit the degradation of chlorophyll and protein during storage of celery, and effectively maintain the storage quality of celery. Storage temperature should be 0 ~ 1 °C, relative humidity 90% ~ 95%. Shenyang City Vegetable Company, Yangji Food Bank (1984), stored celery in a refrigerator in a small plastic film bag. The celery is transported to the cold storage in time for harvest processing. Cut about 2cm of long roots, remove yellow leaves, and injure the leaves, bind the normal and robust plants to a bundle of 0.5-1.0kg, and place them on the shelves for pre-cooling for 1-2 days. When the temperature of the vegetables drops to 0°C, the bag of polyethylene film is introduced into the bag, and its thickness is 0.07-0.08mm, length 100-110cm, width 75cm (natural width), 13-15kg per bag, and loose bag mouth ( The diameter of the mouth is about 20-30mm). Then put the bag on the shelf, do not squeeze each other, is generally stored in the same library number and garlic, the library temperature to maintain 0 ~ -1 °C. When the sample is stored for 50 to 60 days, it is found that when the leaves turn yellow (or water rots), it is processed and trimmed in time. In general years, when it was stored for 3 months, the commodity rate was about 90%. The same effect was also obtained for spinach and parsley. 4. Phytohormone treatment Domestic and foreign plant hormones such as GA and BA have been reported to delay leaf senescence. Shenyang Agricultural University (1990) used phytohormones to treat celery, which GA (30 ~ 50mg / L) received good results. The test village is a greenhouse celery (harvest in early November), sprayed on the field 1 to 2 days before harvesting, or sprayed on the day after harvest to the next day. After the water droplets are removed and pre-cooled at the same time to meet the requirements, they are put into a film bag. Sonza bag mouth. At around 0°C, storage for 3 months, the commodity rate was over 95%, while the control was only around 80%.
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