What does dandelion blossom like?

Dandelion is a perennial herb of Taraxacum in Compositae. The root is conical, the surface is brown and shriveled, the leaf margin sometimes has wavy teeth or pinnately parted, the base gradually narrows into a petiole, the petiole and main vein are often reddish purple, the upper part of the scape is purple, and it is densely covered with spider filiform white villous; Head, involucre bell-shaped, achene dark brown, long crown hair white, flowering and fruiting period from April to 10.

Jesus Christ. The sowing amount is generally about 3 ~ 4 grams per square meter, which can protect 700 ~ 1000 plants.

Tiantuan management

Field management in the year of sowing: keep the soil moist before emergence. If the soil is dry before emergence, some wheat straw or thatch can be sparsely covered on the surface of the seedbed; Then water it gently, and peel off the grass with a fork after the seedlings are in full bloom; After emergence, water should be properly controlled to make the seedlings grow healthily and prevent them from lodging in vain; During the rapid growth period of leaves, the field should be kept moist to promote the vigorous growth of leaves; Water 1 time before winter, and then cover with horse manure or wheat straw, which is beneficial to overwintering.

Intertillage weeding: Dandelion can be used for 1 time when it emerges about 10 days, and then every 10 days until the ridge is harvested; Don't have weeds in the fields. After the ridge is closed, weeds can be pulled up manually.

Interplanting and seedling fixing: interplanting and seedling fixing are combined with intertillage weeding. Sparse the seedlings about 10 day after emergence, with the plant spacing of 3 ~ 5cm, and set the seedlings after 20 ~ 30 days, with the plant spacing of 8 ~10cm and the plant spacing of 5cm.

Fertilizer and water management: dandelion has strong resistance to pests and diseases, and generally does not need pest control. The focus of field management is mainly fertilizer and water. Although dandelion does not require high soil conditions, it still likes fertile, moist, loose soil with high organic matter content. Therefore, when planting dandelion, 2,000 ~ 3,500 kilograms of farm manure should be applied as base fertilizer every 667 square meters, and ammonium nitrate 17 ~ 20 kilograms should be applied as seed fertilizer every 67 square meters. After sowing, if the soil surface is not covered, it should be watered frequently to keep the soil moist to ensure the whole seedling. After emergence, we should always keep the soil with proper moisture.

Import "pruning" fertilizer 1 ~ 2 times during the growth period. And often water to keep the soil moist, so as to ensure the growth of the whole seedling and after emergence. When the seedlings planted in that year are of good quality and high yield in the next year, they can be harvested without picking leaves. After autumn sowers enter winter, they sprinkle 2500 kilograms of organic fertilizer and 20 kilograms of calcium superphosphate on the border, which not only plays a role in fertilizing, but also can protect the roots from overwintering safely. After turning green in the next spring, chemical fertilizers (urea 10 ~ 15 kg, calcium superphosphate 8 kg) can be applied in coordination with watering. In order to go on the market early, you can use a small arch shed in early spring. It should be watered 1 time in late autumn and early winter, and then covered with horse manure or wheat straw to facilitate the overwintering of root plants and the early germination of new plants in the following spring.

Harvest: Dandelion can pick the big leaves outside in batches for food at seedling stage, or cut the leaves except the heart leaves with a knife to eat. Every 15 ~ 20 days 1 time. You can also cut the whole plant at one time and go on the market. Generally, 700 ~ 800 kilograms can be produced per mu of land per harvest.

When harvesting, you can pick and dig with a hook knife or a knife, and cut the knife parallel to the surface 1 ~ 1.5 cm, leaving the underground roots to grow new buds. First, pick large plants and harvest them, leaving small and medium plants to continue to grow; It can also be harvested like celery leaves in some places in Northeast China, but the leaves are scattered and do not form leaf bundles. Yield per unit area: cultivated in the open field, with an average yield of 0.8 ~ 1.0 kg per square meter; Greenhouse cultivation, the average yield per square meter 1.2 ~ 1.7 kg; Greenhouse cultivation, the average yield per square meter 1.5 ~ 2.4 kg.