Detailed Explanation of Key Management Techniques for Burdock at the Seedling Stage

Burdock is a plant in the genus Arctium of the family Asteraceae under the order Asterales, also known as Dali Zi and Dongyang Shen. It is an excellent vegetable. At present, the main producing area in China is Shandong, and it has a long history of cultivation and a fairly large planting area. So do you know how burdock should be managed at the seedling stage? Follow the editor to learn about it.

1. Ventilation and seedling hardening

For burdock cultivated in small arched sheds in winter and spring, ventilation is generally not carried out before emergence in order to promote early emergence. When about 70% of the seedlings have emerged, ventilation and seedling hardening should be carried out in time, but the ventilation openings should not be opened too large. If cultivation is done with plastic film mulching in early spring, the film should be broken in time after emergence to release the seedlings, so as to prevent the young seedlings from being scorched. For open-field cultivation, good soil moisture should be maintained, and watering can be done appropriately according to soil moisture conditions.

2. Thinning and final singling of seedlings

For cultivation in small arched sheds in winter and spring, the entire seedling stage generally requires thinning twice, while for other sowing seasons it generally requires thinning three times, and for open-field cultivation it generally requires thinning three times. When the first true leaf of burdock unfolds, the weak and residual seedlings should be thinned out, and thinning should be done once more when there are two true leaves. When the plants grow to 3-4 true leaves, final singling should be carried out in time. At this time, some yellow seedlings, weak seedlings, and seedlings with unbalanced leaf growth should be removed. During final singling, the spacing between seedlings is generally 25-30 cm.

3. Fertilizer and water

After sowing burdock, the soil should be kept moist. If the soil moisture is poor, a small amount of water can be poured into a trench opened between the two sowing rows, allowing the water to slowly seep into the sowing area. Do not flood irrigate, and ensure full coverage. After burdock emerges in autumn, shade materials should be removed in time. During the seedling stage, growth is slow, and the soil is required to be moist. In case of drought, appropriate spraying with water should be done. In autumn, small arched sheds should be used for covering in good time, so as to facilitate strong seedlings and early growth in spring and reduce frost damage. In early spring, fertilizer and water management should be done well to promote rapid growth of the seedlings. After the temperature rises in April, the method of ventilating without removing the film should be adopted, so that the plants gradually expand. Good work should be done in clearing ditches and drainage to avoid water accumulation and root rot.

The above is an introduction to management techniques for burdock at the seedling stage. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.