The latest course on fresh-keeping techniques and methods of green onions

Scallion leaves thin on the ground, a little yellow to harvest, otherwise to the frost weather, it will freeze or rot. After harvest, it should also be stored in a suitable way, which needs to be kept fresh and cannot deteriorate or spoil. Therefore, some measures should be taken to keep fresh. Generally, it is necessary to create a low temperature and dry environment for storage. Specifically, there are some ways.

1, hidden

In a shady, dry, clean place that requires shelter from the wind, spread 5 cm of sand on the ground, bundle the onions on the sand, place them densely, and then cover the roots with nearly 20 cm of sand. Can be stacked all the time, the height can be about 1 meter, finally covered with straw or straw, film and the like protection.

2. Storage

First, put the harvested scallion in the geographical sun for a few days, after drying until the surface is dry, bundle the root down and stack it in a sunny, well-ventilated and dry place to continue drying. When frost comes, it can be transferred to the cellar for storage. Pay attention to the moisture problem in the cellar, check frequently, and remove the rotten ones.

3. Refrigeration

Refrigeration is mainly for short-term storage after harvest. When storing, it is necessary to keep the green onion fresh, so it is necessary to maintain the temperature of 0 ° C, not to increase, but not to decrease and freeze directly. During refrigeration can occasionally spray moisture, onions to be packed with containers and then put into the cellar. If we can reduce the oxygen in the cellar, it'll last longer.

4. False hiding

When harvest time comes, do not pull out the soil surface, directly cultivate the soil at the root, cultivate the soil deep enough to bury the residence with onion white, only expose the green leaves, so that it can be kept until winter, and dig it out at any time to sell. Or harvest home in the yard dig a hole buried, also buried scallion white can be.

5. Frozen storage

It is beneficial to the natural environment conditions. After harvesting, it can be dried for a few days, so that some leaves can be bundled and moved to the shade eaves. In this way, the scallion will be naturally frozen at low temperature in winter, so that it can be kept fresh. It is not easy to rot after thawing after drying. Do not dry, leaves more moisture cells, easy to break a move.

There are many ways to keep green onion fresh after harvest, and the preservation method will be decided according to different requirements. Here, only a few representative preservation methods are selected to introduce them in detail. There is also some to stay for seed plants can not be frozen, green plants to be refrigerated.