Planting time of green onion
Green onions can be planted in March-April in spring, then planted in May-June, and harvested at 10 ~ 12. Moreover, the green onions planted in this period require fast variety growth, heat resistance and rain resistance, so that the yield will be high.
Growth cycle of scallion
The growth cycle of Welsh onion mainly has two stages, namely vegetative growth and reproductive growth. Among them, the vegetative growth period can be divided into germination period, seedling period and scallion formation period, and the reproductive growth period includes greening period, bolting period, flowering period and fruiting period.
Planting cost and profit of scallion
Growing green onions is profitable. Usually, it takes about 500g to grow an acre of green onions, which costs about 80 yuan, and the total investment of plastic film and fertilizer 150 yuan is not more than 300 yuan. If the output value of an acre of green onion is 10936 yuan, minus the cost of 1409 yuan, then the income from planting is about 9527 yuan, which is still considerable.
Key points of planting techniques of scallion
According to the air temperature and soil humidity, we should water the green onions for overwintering before the soil freezes, cover the rotten farmyard manure, and keep them moist and warm to ensure the safe overwintering of the seedlings. The temperature rises in spring, and the seedlings enter the rapid growth period. The first seedling spacing is 0/~ 2 times of kloc-0, and the seedling spacing is about 3cm.
According to the climate, the green onions will be watered around the end of March, and they must be watered thoroughly. In mid-April, when the seedling height is 15cm, transplant the seedlings in dense areas to places where there are at least seedlings, and keep the soil dry and moist from the humidity.