When will the green onions be harvested? When will the green onions be harvested?

According to the different seedling time and varieties, the harvesting period of green onions can be divided into:

1, spring planting and autumn harvest

Seeding in March-April, sowing in May-June, and harvesting in 10 ~ 12. At this time, planting green onions requires fast growth, heat resistance and rain resistance, and high yield. You can choose Puwei Star No.3, No.4, Minghui and Xinzhuangyuan.

2. Spring planting and winter harvesting

Seeding in March-May, sowing in June-July, and harvesting in the following year from 65438+February to 65438+1October. At this time, planting green onions requires strong low temperature tolerance and high yield. Yudou Welsh Onion, Star No.2, Mingmen, Changfeng Welsh Onion and Fengyi One are ideal varieties.

3. Sow in summer and autumn and harvest in spring

Seedling shall be raised from May to September, sown from September to165438+1October, and harvested from May to July of the following year. ? At this time, planting green onions requires varieties with bolting resistance, disease resistance, high yield and delayed harvest. Puwei is the first choice for long summer, Spring Festival Evening and late harvest of famous products.

4. Planting in winter and harvesting in spring and summer

Generally, seedlings are raised in September ~1October, sown in June ~1February, and harvested in May ~ July of the following year. At this time, planting green onions requires low temperature resistance, bolting resistance, strong disease resistance and delayed harvesting. September Puwei, seedling raising in summer, seedling raising in late spring, and late seedling raising of famous plants. 65438+ one for Xinger, Mingmen and Yufeng, for nursery use in 10.

5, green onion harvesting and processing or export base

Generally, this crop is raised from April to May, planted in June, and harvested from June 165438+ 10 to June 65438+ 10 in the following year. Foreign countries require higher leaf length, dry matter content, scallion hardness and commodity rate, especially dry matter content and uniformity. The first choice is Star No.2, Famous Family, Famous Family's Night Pumping, Yu Feng's One Book and other varieties.

Extended data:

Storage of Welsh onion after harvest

1, refrigeration method

Pick out the green onions without pests and diseases and obvious mechanical disabilities and tie them into bundles. If it is stored for a long time, it is recommended to trim the leaves and put them in boxes, baskets or bags. Then the temperature of the cold storage is adjusted to about -4℃, and after the temperature drops, the green onions are put into the cold storage for stacking and storage, and the relative humidity is 80%~85%. During the storage of green onions in cold storage, the quality of each green onion should be checked regularly, and rotten plants should be screened out in time.

2, slightly frozen trench storage method

Dig a trench with a depth of 10 to 20cm and a width of 1 to 2m in the lee and the sun. 7- 10kg dried shallots are bundled, and the shallots are buried tightly with soil and stored vertically in the ditch. At the beginning of storage, the upper part of the green onion bundle is open, and it is turned 1 time every week to dry all the green onion leaves. In order to prevent frostbite of green onions, soil can be cultivated for green onions, and the top can be covered with straw curtains or other thermal insulation materials.

3. Pit storage method

This method is suitable for northern areas and is usually used when the temperature is below 0℃ in winter. After the green onions are harvested, they are bundled into bundles, about 10 kg, and put in a sunny, dry and rainproof place to dry. After drying for a few days, when the temperature drops below 0℃, it is stored in the cellar. Note: Keep the temperature in the cellar at about 0℃, and pay attention to moisture and heat protection.

4, the ground storage method:

Spread sand with a thickness of 3-4 cm and a width of 1- 1.5 m on the leeward flat .. Wrap the dried and tied green onions tightly on the sand, with the roots facing down, and cultivate sand with a height of 15 cm around the roots of the green onions. Cover with straw curtain and plastic film for rain protection. Note: The site should be protected from light and rain.

4, ventilation frame hidden method:

In the shed, indoors and other places, the collected and dried green onions are tied into bundles by using shelves or self-construction, each bundle is about 7- 10kg, and stacked on the shelves in turn, and each plant is ventilated with gaps to prevent the plants inside or beside the green onions from rotting.

Baidu encyclopedia-onion

China Food Science and Technology Network-Fresh-keeping Method of Onion