It won't go bad, but it should be preserved in the right way. The roots of coriander are facing down and the leaves are facing up. Sprinkle a layer of fine sand on it, and then increase the thickness of the covering soil in 2-3 times as the temperature drops. Cover the ditch with a thick straw curtain or straw before and after freezing. The temperature should be kept at -5-4℃, the leaves should be frozen, and the roots should not be frozen. This method can be kept until February of the following year. After the coriander leaves the cellar, it should be thawed slowly and restored to its original state.

You can also bundle coriander into small bundles of about one catty, and then put them into polyethylene plastic bags. Each bag contains 8~ 10 kg of coriander. The gas composition in the bag can be easily adjusted by loosening the bag mouth, so that the average value of carbon dioxide in the bag is about 8.0%, the oxygen is about 10%, and the commodity rate can reach over 90%. The storage temperature of stored coriander should be kept at-2-65438 0℃, neither too low nor too high. This method can be kept until next May.

Planting method and time of coriander root

1, planting time

Coriander has strong tolerance and is most suitable for planting in spring and autumn. Not sensitive to temperature changes, it can adapt to the temperature for most of the year, and the cultivation of coriander roots is generally carried out indoors, so it can be planted all year round.

2, coriander root treatment

If you want to plant coriander with coriander roots, you must pay attention to maintaining the basic integrity of its roots and the integrity of the coriander heart. The most delicate part of the central bud must be basically intact. This is the most important thing when cutting roots and planting. Keep the old soil at the roots and spin off the remaining water droplets.

3. Planting techniques

Prepare a large flowerpot or discarded washbasin, foam box, etc. Use tools to make some holes in the bottom, put some loose and fertile garden soil mixed with some plant ash, plant coriander roots in the soil, water them once at a certain distance, and put them in a cool place.

4, maintenance work

When planting the roots of coriander, the ambient temperature should be kept at about 17-20 degrees Celsius, so that the growth speed of coriander will be faster, and topdressing can only be started when it grows to about 10 cm, so that it can receive certain light, supplement fertilizer and promote its healthy and rapid growth and development.