Post-flowering management of cherry blossoms
Cherry blossom management is important after flowering in early spring. After flowering, the withered branches, overlapping branches and diseased branches of cherry trees should be cut off in time, and the healthy branches should be kept. The rest should be cut off from the base, so as to facilitate the ventilation and light transmission of cherry trees, continuous renewal and vigorous growth. The pruned cherry trees should be disinfected with medicine in time, and the wounds can also be treated with ink to prevent fungi from infiltrating the wounds and rotting after rain.
After flowering can apply a fully decomposed organic fertilizer to promote leaf development, promote growth, the next day after fertilization timely watering and loosening, keep the soil loose, beneficial root development. At the same time, topdressing can be used outside the root. 2 grams of boric acid, 0.1% urea and 0.2% potassium dihydrogen phosphate are added to every 15 kilograms of water. When fertilizing, the fertilizer solution will be sprayed on the front and back of the leaves, so that the nutrient elements penetrate into the mesophyll tissue through the epidermal cells and stomata, and then transported to the whole body through the petioles and veins. Spray once every 5 - 7 days. Until the flower buds of cherry blossom are formed and the leaves are dark green.
From May to July, Wuhan and rain are more conducive to cherry brown spot perforation disease. The disease mainly occurs in leaves, but also occurs in new shoots. The affected leaves are purple-brown spots at the initial stage, and then gradually become round spots. In the later stage, the disease spots dry and fall off, forming perforations. After perforation, the edges are neat, and the leaves are easy to fall off, affecting the growth, flowering and ornamental value of cherry trees.
In Wuhan area, Japanese late cherry (Guanshan, Juying) varieties are more serious, so it is necessary to spray Bomi 2 - 4 degree stone sulfur mixture before cherry germination, 700 - 1000 times of 70% thiophanate-methyl WP or 500 times of 65% zebrazine WP after cherry leaves grow.
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Brief introduction and cultivation Management of Cherry Blossom
Alias: mountain cherry blossom, Fukushima Sakura, green skin cherry family name: Rosaceae morphological characteristics: deciduous trees. High 5m-25m. The bark is dark chestnut brown, smooth and shiny, with horizontal striations. Branchlets glabrous. Leaves ovate to ovate-elliptic, margin Awned, both surfaces glabrous. Corymbose or raceme, flowers white or pale pink. The florescence is from April to May. Ribs globose, black, ripe in July. The key point of planting: grafting and propagation. The seedlings of cherry and mountain cherry can be used as rootstocks. Cut in late March or late August
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Root cancer of cherry blossoms
Cherry blossoms are distributed in Liaoning, Hebei, Anhui, Jiangxi, Zhejiang, Jiangsu and Guizhou in China, and mostly in Japan and Korea. Xiguang, like deep, fertile and well-drained soil, have weak resistance to smoke, harmful gases and sea tide wind. It has certain cold tolerance, shallow root system and easy cultivation. Cherry blossoms blossom in spring and are very beautiful. It should be planted on hillsides, courtyards, in front of buildings and by the side of the garden road. The disease is a common and serious disease of cherry blossoms, which generally occurs in the areas where cherry blossoms are introduced. Zhengzhou, Chengdu, Hangzhou, Jinan, Wu
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