Is the planting time strict? Why is it better than spring? Onions can be broadcast in autumn or spring. In the east of the mountain, onions from the hills are broadcast mainly in the autumn with seedlings rising over the winter, and can grow early in the spring through cold exercise. Precipice can also be broadcast if the precipice crop is not available late in the harvest or before winter. The planting time is very strict, both in autumn and spring. Only when seeded in due course will it be possible to produce strong seedlings and grow rapidly after planting, ultimately for high-yield quality purposes. In the onion-producing area of the town of zechue, the planting season in autumn generally stabilized at 16. 5-19 degrees in the late season. It coincided with two to three days on or about 1 october and four to six days after the fall. The planting schedule allows onions to be spread for approximately 90 days, with temperatures of about 620 degrees, by the end of december. If seeding is premature and the onion thrives before winter, the following year there may be a “pre-spill”. According to the experience of many years of planting in the town of zhangchou, in shandong province, two or three days before the end of december, seeding reached 800 to 900 degrees in the first two to three days, and winter colds (under 0 degrees) at around 322 degrees, with the premature occurrence of “pre-spill” to varying degrees. Therefore, there is no room for complacency and greed. It is, of course, not possible to sow too late, otherwise the onions are too small before winter, unfrozen and prone to freezing to death during winter, so it is extremely important to keep the planting season strictly under control and to make full use of the pre-winter light and heat in order to keep the seeds warm. Spring onions are broadcast and planting is scheduled to take place after spring. According to the local climatic conditions in the town of zechue, which passed 0 degrees on 18 february and 3 degrees on 28 february, the appropriate period for the origin of the zechue onions was the end of february and the beginning of march. Pre-primary schools attest to the fact that onion-sprinkled autumn is better than spring-spring seedlings, which are promoted mainly because of the long duration of autumn-sprung seedlings around 270 days, the appropriate size of pre-winter seedlings, winter resistance to cold and frost, early onset of a tree in winter, and easy production of good quality。
