First, take the seeds.
In autumn, asparagus will bear fruit. When the fruit is ripe, it gradually turns from green to red. At this time, you can start harvesting seeds. At this time, we will put the picked fruits together and wait for fermentation, and choose seeds with large particles and sufficient vitality.
Second, sowing time Spring and autumn are the most suitable time to sow asparagus.
If you sow in autumn, the germination rate is relatively high, but it takes a long time, so you should have some patience to manage and cultivate it.
If you sow in spring, it will be more convenient to manage, no matter how safe the seedlings are for the winter.
Third, the sowing method 1. First of all, choose soil with good drainage and air permeability. Before sowing, it should be leveled, magazines should be removed, and then sterilized.
2, regardless of the amount of seeds, we can consider it according to the amount of 20 kg per mu.
According to the distance of about 22 cm, make a 7 cm deep horizontal ditch and sow. The seed depth is 6 cm, and the spacing between adjacent seed pits is 2 or 3 cm.
3. After sowing, spray water, cover with base fertilizer or plant ash, then cover with fine soil until it is flush with the ditch surface, and cover the top with straw mats to reduce water temperature loss.
4. Above the temperature, the temperature should be controlled at about 18 degrees, then carefully observe the wet and dry conditions of the soil and replenish water in time.
Generally, it takes about 20 days to raise seedlings.
Fourth, the late maintenance of 1, first of all, shading measures should be taken at seedling stage.
2. When the seedlings grow to 3 cm, weeds should be removed, fertilizers should be added, and the soil must be loosened in autumn.