Carrot storage technology

Carrots with bright skin, slender roots, small rhizomes, thin column species resistant to possession, such as red whip rod, red gold and other tops better tolerance, common storage methods are storage and cellar. (1) Gully. Pre-storage preparation: Choose a trench with high topography, good drainage, and strong water retention capacity to excavate the storage trench. The trench is oriented east-west and has a width of 1.5 meters and a depth of 1 meter. The length of the rock depends on the storage capacity. The surface hot soil is placed on the south side of the ditch, and the raw soil is placed on the north side to cover the carrots. Harvested carrots should be scraped off at the growing point of the radish dish stems (the carrots left as seeds should not be treated). The purpose of the treatment is to prevent the radish from sprouting and sprouting. Storage method: carrots into the ditch time is best before 10 o'clock in the morning, the storage method can be scattered heap, can also be stacked layered, its thickness is generally 40 to 50 cm. After the carrots are piled up, the soil is covered with a thickness of 10 cm. Afterwards, as the temperature decreases and the soil is covered twice, the total thickness of the cover soil is greater than the thickness of the local permafrost layer. It is best to place a straw at regular intervals in the storage ditch. Into the ventilation. (2) Cellar. The cellar of carrots can be divided into bulk storage and stratified storage. In bulk storage, its height should not exceed 1.5 meters to prevent rot caused by high humidity. It is also possible to place several vented straws in the stack to facilitate ventilation. Stratified storage method is to put a layer of 8 to 10 cm thick sand on the bottom of the cellar, then a layer of radish layer of sand, stacked a total of 80 to 100 cm, each asked 1 meter to put a vent tube, to prevent high temperatures, The top level is 20 cm in Windsor. The temperature in the cellar is controlled at 0 to 2°C, and the relative temperature is 90% to 95%. The control of temperature and humidity is controlled by the general cellar control method. (3) Carrots in plastic bags are stored in small packages. When the plastic bag is stored in a small package, the carrot is packed in a polyethylene plastic film bag, 1 kilogram per bag, and the mouth of the bag is stored under the condition of 1° C. This method has good preservation effect. If the carrots are immersed in a solution of 80-150 times the solution of Qingxin, they are allowed to air dry and then repacked for 5 to 6 months. The carrots are fresh as before (4) The plastic film of carrots is stored. Plastic film storage is the use of the principle of spontaneous air-conditioning, in the pit or in the library using a semi-closed or fully closed membrane treatment, this method to inhibit dehydration and germination have a significant effect. Pre-storage preparation: This storage method is carried out in an ordinary large-scale vegetable cellar. Therefore, the first step is to build the cellar in accordance with the requirements of the size of storage, the second is to glue the plastic film account as required, and the third is to select the disease-free, injury-free carrot storage. Storage method: When the film is half-closed and stored, the carrots are piled into a rectangular parallelepiped stack of 4 to 5 meters in width, 1 to 1.5 meters in width, and 1 to 1.2 meters in height. When the temperature in the pit drops to 0 DEG C, the film is put on. The bottom of the heap is covered with plastic film. This method can properly reduce oxygen storage, accumulation of carbon dioxide, maintain humidity, good effect, during the storage period, you can open accounts at regular intervals, when necessary, check the selection, this method can be stored in the second year of carrot in May and June.