How to grow cherry blossoms?

1. Planting

Before planting, the ground should be flat. You can dig a pit with a diameter of 0.8 meters and a depth of 0.6 meters. First, fill the pit with10cm organic fertilizer, and put the seedlings in into the pit, so that the roots of the seedlings extend around. After the cherry blossoms are filled with soil, it is practical to lift the seedlings upward to spread the roots. The planting depth is about 5 cm from the upper layer of seedling roots. After planting, water it, fully irrigate it, and put it up with a stick to prevent the strong wind from blowing down.

When planting, apply decomposed compost 1.5 kg -25 kg to each pit, and apply ammonium sulfate 1 kg -2 kg to each plant in July. After flowering in early spring and before germination, cut off dead branches, weak branches and long branches, try to avoid pruning thick branches and keep the crown intact.

water

After planting, seedlings are susceptible to drought. During the planting period, in addition to adequate irrigation, irrigation should be conducted every 8- 10 days to keep the soil moist and free from water accumulation. Loosen the soil in time after irrigation, and it is best to cover the surface with grass to reduce water evaporation. In 2-3 years after planting, in order to prevent the trunk from drying up, it can be wrapped with straw. But after two to three years, the seedlings grow new roots and their adaptability to the environment is gradually enhanced, so there is no need to wrap grass.

fertilize the soil or land

Cherry blossoms are fertilized twice a year, and acid fertilizer is better. One is winter fertilizer, and organic fertilizers such as bean cake, chicken manure and decomposed fertilizer are applied in winter or early spring; On another occasion, quick-acting fertilizers such as ammonium sulfate, ferrous sulfate and calcium superphosphate were applied after flowering. Generally, the fertilization method of cherry trees can be adopted, that is, an annular ditch with a depth of about 10 cm is dug at the edge of the crown: orthogonal projection line, and fertilization is carried out.

This method is not only simple, but also beneficial to root absorption. In the future, with the growth of trees, the diameter and depth of the annular groove for fertilization will also increase. Cherry blossoms have shallow roots and need good drainage and ventilation. Therefore, it is forbidden for people, livestock and cars to stabilize the soil around trees, especially within the distribution range of roots. Pedestrian trampling will weaken the tree, shorten its life, and even lead to rotten roots and death.

prune

Pruning is mainly to cut off dead branches, long branches, overlapping branches and pests and diseases. In addition, when many branches grow on the trunk of the big cherry tree, some robust branches should be kept and the rest should be cut off from the base to facilitate ventilation and light transmission. The pruned branches should be disinfected with drugs in time to prevent bacteria from invading after rain and causing rot. After a long period of sun exposure, the bark of cherry blossoms is easy to age and damage, causing rot, so it should be removed and disinfected in time. After that, the rotten part was wrapped with humus and carbon powder to promote its normal physiological function.

Extended data:

control of insect

Cherry blossoms should mainly prevent gummosis, nodule disease, aphids, red spiders, scale insects and other pests. Gummosis is caused by moths drilling into tree trunks to lay eggs. We can dig out eggs with sharp knives, improve soil and strengthen water and fertilizer management. Nodular nodule disease will cause the roots of diseased trees to fail to grow normally, and the trees are still not strong no matter how fertilized. Tumor should be removed in time, soil should be disinfected, and humus soil, charcoal powder and microorganisms should be used to improve the soil.

For aphids, red spiders, scale insects and other pests, prevention should be given priority to, spraying drugs 3 ~ 4 times a year, the first time before flowering, the second time after flowering, and the third time in July and August.

There are many kinds of cherry blossom diseases and insect pests, and the common diseases and insect pests are described as follows:

1. Puncture brown spot disease: it occurs in May and June, with purplish brown spots on the leaves, and then gradually expands into a circle. The diseased spots become pores after drying and shrinking, and most bacteria live in the diseased leaves for the winter. The optimum temperature for development is 25 ~ 28℃, and the rainy season is favorable for infection. When the trees are weak, the drainage is not smooth, and the ventilation and light transmission are poor, the disease is serious.

Prevention and control methods:

(1) Strengthen cultivation management, prune reasonably, pay attention to pruning diseased branches, clean diseased leaves in time and burn them to create clean growth conditions for plants.

(2) The sulfur mixture with 3-5 Baume can be sprayed before the new buds germinate, and 1.60 times Bordeaux solution or 1.000-2.000 times 50% wettable powder or 1.05% zineb solution can be sprayed during the onset period.

Second, leaf blight: In summer, yellow-green circular spots appear on the leaves, then turn brown, with scattered small black spots, and the diseased leaves die but do not fall off.

References:

Sakura (Rosaceae Sakura) _ Baidu Encyclopedia