When do you sow onion seeds in autumn?

Sprinkle onion seeds in autumn and early September.

Sowing in early September of that year, sowing in the first half of May of the following summer, harvesting before winter, and harvesting onion seeds after flowering in the third year. In China, the planting area of green onions is very wide, and the population demand is also great.

Planting green onions needs more consideration at this time of autumn. If you plant it too early, it will be easy to pull out the moss in the spring of the next year, which is not suitable for transplanting; If planted too late, the young onion plants are small, which makes it difficult to survive in winter and easy to freeze to death. Most of the shallots that survive in winter are malnourished, and will grow slowly after turning green in the next spring. To sum up, the period from Bailu to autumnal equinox is the best time to sow Welsh onion seeds in autumn.

How to sow Welsh onion seeds

1. About sowing date: Due to the different climatic conditions in different parts of the country, the sowing date of Welsh onion seeds is also different. But the size of seedling growth before winter determines the best sowing date. In general, in the next spring, it is easy to defoliate seedlings through vernalization. If the seedlings are small, they can't survive the winter safely. The standard before winter is to grow to the extent of two leaves and one heart.

2. Layout of seedbed: We should choose a plot with flat terrain, fertile soil, close to water source and convenient drainage, shallow tillage and harrowing, and apply 50 kg/mu of compound fertilizer as base fertilizer, at the same time, apply 2.5 kg/mu of carbofuran and 0.5 kg/mu of carbendazim powder to kill pests and germs in the underground part.

3. About sowing method: First, take out a certain amount of mulch from the ridge, and then irrigate it. When water permeates into the border, the seeds are mixed with sand, and then sprinkled twice in the border, and covered with mulch with a thickness of 1-2cm. The seed consumption of the seedling farm is 1-2 cm.

4. About timely planting: The green onions planted in summer are generally in the first half of September, and the green onions planted in autumn are generally from the Millennium to the autumnal equinox. 80cm row spacing, 1.5 to 2cm plant spacing, ditching and planting. Before planting, onion seedlings should be graded first, and then chemical agents should be sprayed to eliminate maggots at the roots.

5. About rational watering: The management center of green onions after planting is to promote roots. Reasonable watering, timely drainage after rain to prevent waterlogging, to prevent the phenomenon of rotten roots, yellow leaves and dead seedlings of green onions caused by heavy rain. If it is rainy after transplanting, it will cause rotten roots and dead seedlings. At this time, timely drainage is essential. If you encounter hot and dry weather, you have to water it in time to cool down.