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Soil requirements and improvement measures
Sakura grows well in both sandy loam and clay loam (pH 5.5 to 6.5) with more humus. In the place where the soil is heavy in the south, it is generally mixed with self-produced rot-leaf (collecting leaves and soil, chicken manure, and soil made from charcoal meal). Note that the original clay block must be broken before mixing, otherwise it will not achieve the effect of soil improvement.
In the place where the groundwater level is less than 1 meter, the high planting method is adopted, that is, the entire planting hole is leveled and then the soil is planted on the top. Alkaline soils in the north need sulfur powder or ferrous sulfate to adjust the pH to about 6. 2 grams of sulfur powder per square meter, valid for 1 to 2 years, and measured each year, so that the pH does not exceed 7.
The trunks of Yamazakura, Yoshino and Yoshino are straight and have a large tree body. They are strong and positive species and require shelter from the sun and ventilation. When growing into a piece, each tree should receive sunlight.
Planting measures
The planting time was planted immediately after soil thawing in early spring, usually in February and March.
Planting methods Before planting carefully, prepare the soil. On the ground, a hole with a diameter of 1 meter and a depth of 0.8 meters can be planted. Fill the hole first with about half of the deep improved soil, and put the seedlings in the center of the hole so that the roots of the seedlings spread to all directions. After filling a small amount of soil, raise the seedlings slightly so that the root system is fully stretched and lightly stepped on. The seedlings should be planted to a depth of 5 cm above the ground. After planting, make a nest of water and fully fill it with water. Finally, support it with a bamboo sheet with a height similar to that of the seedling to prevent wind blowing.
Management measures
After the drought-proof planting, the seedlings are vulnerable to drought. In addition to adequate irrigation during planting, irrigation should be performed 8 to 10 days later to keep the soil moist but no water. After irrigating timely, it is best to cover the surface with a thin layer of grass to reduce the evaporation of water. Within 2 to 3 years after planting, straw can be used to prevent stem drying. However, after 2 to 3 years, new roots have emerged from tree saplings and the adaptability to the environment has gradually increased.
During the growth period, cherry trees are fertilized twice a year. Acid fertilizers are preferred. Once it is winter fertilizer, organic fertilizers such as bean cake, chicken manure, and composting fertilizer are applied in winter or early spring; after another fall, quick-acting fertilizers such as ammonium sulfate, ferrous sulfate, and superphosphate are applied. Normally large cherry trees are fertilized, and a method of acupuncture can be adopted. That is, a circular groove about 10 cm deep is dug at the edge of the canopy projection line, and the fertilizer is applied. This method is both simple and conducive to root absorption. As the tree grows, the diameter and depth of the fertilized ring groove increase.
The distribution of Sakura roots is shallow, and it is required that the drainage be well ventilated. Therefore, in the area around the tree, especially in the distribution of the roots, avoid humans, animals, and vehicles in the soil. Pedestrians trampling will weaken the tree, shorten their life span, and even cause rot to die.
Trim conservation
Pruning is mainly to cut off withered branches, leggy branches, overlapping branches and pests and branches. In addition, when many branches are grown on the trunk of large cherry trees, some strong and robust branches should be kept. The rest should be cut off from the base to facilitate ventilation. The pruned branches should be promptly disinfected with drugs to prevent the invasion of bacteria after rain, leading to rot. Cherry blossoms are exposed to prolonged sun exposure. The bark is easily damaged by aging and causes decay. It should be removed and disinfected in a timely manner. After that, rotten soil and charcoal were used to bind rotten parts and promote normal physiological function.
Pest Control
Glue-like moths can cause eggs to be laid on the trunk. They can use diggers to dig eggs, improve soil, and strengthen water and fertilizer management.
The roots of these diseased trees do not grow normally. No matter how fertilized, the tree is not robust. The tumor should be promptly resected and the soil should be disinfected. The soil should be treated with humus, charcoal powder and microbes.
The pests and diseases of aphids, red spiders and scale insects should be mainly prevention. Spray 3 to 4 times a year, the first time before flowering, the second after flowering, and the third time between July and August.
Sakura cultivation full contact
Sakura is a deciduous tree, sexually pleasing to the sun, cold-resistant, drought-tolerant, avoid salt and alkali, suitable for growth in loose, fertile, well-drained plots, afraid of the wind during flowering, strong sprouting and rapid growth.
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