1, planting time
In China, mustard tuber is mainly planted in autumn, and the planting period of mustard tuber in northern China is around mid-August. The suitable temperature for the growth stage of tuber mustard tuber fleshy stem is 13- 18℃. If planted too early, the succulent stem of mustard tuber is easy to bolting, longitudinal cracking and hollow in hot weather, and may cause virus disease. However, planting for a long time will shorten the growth period of mustard tuber, resulting in small succulent stems and low yield, so it is necessary to choose the right time for planting.
Step 2 sow seeds
The mustard tuber seeds are relatively small, and the ability of germination and covering soil is weak, so it needs careful sowing. Two shallow furrows with a depth of 2 cm can be made on the ridge, and then seeds can be evenly sown in the furrows, with the seed dosage of about150g per mu, and covered with fine soil after sowing.
water
After raking the ridge surface, spray water, spray water again 1 time on the second to third day, and sprout after sowing for 3 days.
4. Spacing and fixing seedlings
The first thinning can be done when the seedlings are "hybridized", and the second thinning can be done when the seedlings grow three true leaves. During this period, the diseased seedlings, weak seedlings and miscellaneous seedlings should be pulled out, and the seedlings should be cultivated with thinning, and the seedlings should be fixed when four or five true leaves grow.
5, fertilization
The first topdressing can be carried out after the second thinning at seedling stage, the second topdressing can be carried out after the seedlings are fixed, and the third topdressing can be carried out when the plants are close to the ridge closure, and the water should be watered in time after each topdressing.