1. Hawthorn trees can be planted by sowing. Usually, wild hawthorn is harvested early, then blanched and exposed. Its method: firstly, clean the seeds, put them in water at 60 degrees Celsius for half an hour, and stir them at any time to make the seeds heated evenly. Then take out the scalded seeds and soak them in cold water for 5 days, then take them out and expose them in the sun until they crack.

2. If you use purchased seeds, soak them in water for 24 hours, and then soak them in water at 60 degrees Celsius after rubbing. Expose the seeds on the cement floor or slate during the day, then immerse them in water at night, and repeat this until the seeds have more than 50% cracks, and then carry out sand accumulation.

3. The temperature of sand storage is 0~5 degrees Celsius, and after 80 days of stratification, the seedlings can be germinated and planted in the field to cultivate rootstock seedlings. When the seedlings are planted in the nursery according to the size of the seedlings, the soil should be turned over and organic fertilizer should be applied before planting the seedlings to make the border soil moist. Watering in time after planting and strengthening management.

After the hawthorn seedlings were planted, the roots came out late that year. Therefore, the growth on the ground was weak in the first year of colonization, and it became stronger after the seedling was delayed in the second year, and then it became stronger every year. But when pruning, you should not throw it away or even cut off the extended branches just because it is growing vigorously, which will affect the firm structure and skeleton of the tree and the reasonable distribution of branches. Although it may bear fruit early, it has a small bearing area and low yield.

5. Hawthorn tree has strong adaptability, and its growth and development is better than other fruit trees even in mountainous and thin land; Hawthorn orchards with good fertilizer and water conditions are easy to obtain high yield year after year, and it is not easy to bear fruit in both years. After the hawthorn seedlings are planted, they can yield high yield in five years, and rarely bear fruit at the right age like apple trees.

6. Because hawthorn trees are easy to blossom and bear fruit early, if there are too many fruits during the young trees, it is easy to bear fruit in different years. For mature trees, there are many nutrients in the tree, so long as there are not too many fruits, this phenomenon generally does not occur.

Management method:

1, pest control

Attention should be paid to the prevention and control of green blind stinkbug in the germination stage, and 48% chlorpyrifos 1500 times solution or 10% acetamiprid 3000 times solution can be sprayed. Attention should be paid to the prevention and control of red spider in June, and 1.8% avermectin can be sprayed for 3000 times.

2, plastic pruning

Tree structure Generally, the sparse orchard adopts sparse layer structure, with a dry height of 50cm and a tree height of about 3m, which is divided into 2-3 layers, with 3 main branches in 1 layer and an opening of 70; There are two main branches on the second floor, opening angle180; The third layer has 1 main branches. 1 and the spacing between the second floor 1 ~ 1.5m, and the spacing between the second floor and the third floor is 0.8 ~1m. Each main branch of 1 layer can be equipped with 3 side branches, the second layer can be equipped with 2 side branches, and the third layer can be equipped with 1 side branches or directly and evenly equipped with bearing branches, without side branches. The extension length of the upper main branch is 2/3 of that of the lower main branch.

Extended data:

Fertilization method of hawthorn tree

1, fertilization period

(1) Topdressing before germination: More nitrogen fertilizer is needed from germination to flowering and fruiting. ?

(2) Topdressing during the growth period: nitrogen fertilizer, phosphorus and potassium fertilizer are used together in July, and nitrogen, phosphorus and potassium fertilizer are used together after fruit picking in August. ?

(3) Applying base fertilizer in autumn: For long-term fertilizer, it is best to apply it in autumn.

2. Fertilization method

(1) circular furrow application: dig an annular furrow with a width of 30-40 cm and a width of 15-45 cm at the periphery of the tree, and mix the topsoil and base fertilizer. ?

(2) Hole application: Dig a cone-shaped hole roughly similar to a tree at a distance of one meter from the ground, fill it with dead leaves, cover it with plastic sheets, and pour topdressing in it. ?

(3) Radial furrow fertilization: at the distance of 1 m from the trunk, dig a furrow with the length reaching the outer edge of the crown, pour the fertilizer into the furrow and cover it with soil.

(4) Strip border fertilization: dig a strip border one meter from the ground, pour the fertilizer into the border and cover it with soil.

3. Suitable fertilization: 40-80 kg per young tree per year; Every year, 70kg organic fertilizer, topdressing urea 1 .5-2kg and potassium sulfate1kg are applied to each tree.

References:

Hawthorn Tree-Baidu Encyclopedia