Prevention and treatment of boron deficiency in pear

Boron is one of the indispensable trace elements in pears. The amount of boron and boron applied in the soil can promote the division and elongation of the root meristem cells, enhance the vitality of the root tip cells and the ability of the root to absorb water and fertilizer, and contribute to the formation of leaf chlorophyll, enhance photosynthesis, and promote the carbon in the tree body. Compound operation; can also promote pollen germination, pollen tube growth and ovary development, improve pollen quality and fruit set rate, increase fruit sugar and vitamin content, improve fruit quality. In addition, boron can increase the viscosity of the cell protoplasm and enhance the disease resistance of pears. Pears are sensitive to both boron deficiency and excess boron. The symptoms of boron deficiency or boron deficiency in various organs are: the small leaf is fragile, the leaves on the leaf edge are scooped, the young leaves are reddened, and even extend to mature leaves; when the leaves are severe, brown spots appear, easy Fall early. The growth of new shoots is weak, the internodes are short, and the growth is stopped early. In severe cases, the shoots are extremely short or even unable to shoot, and the tree vigor is extremely weak. Branches of dermis increased, bark was rough, and branches were yellowed, dry, and dull. When the buds mature, the scales are loose, cracking, touching, and the buds grow to death. The flowers became smaller, could not be fully opened, the flowering period was shortened, the fruit setting rate was low, and serious brown spots appeared on the edges of the petals. Fruit, fruit surface depression, stone cells increased, meat thicker, some pulp yellow-brown, cork sponge-like formation of "fruit heart cork disease", taste faded, heavy fruit before harvest; serious fruit deformity, On the surface of the fruit, the knot is formed and the "fruit or fruit" is formed. The meat is hard and bitter and the food value is lost. Excessive boron can easily cause boron damage. Symptoms are similar to those of severe boron deficiency, but the difference is that boron is in a severe condition, the leaves are mottled and yellow, and the leaf margins are dwarfed by coke and young leaves are flushed. In pear orchards, soil pH is greater than 7 and boron is insoluble; in soil with excessive calcium, boron is not easily absorbed by roots. Organic-rich soil can give more boron. Clay has a higher boron content than sandy soil and topsoil.

Bone deficiency correction methods: 1, increase organic fertilizer, improve the soil, increase the boron-bearing capacity of the soil. 2, combined with autumn basal fertilizer, application of borax or boric acid, the amount of boron applied depends on the lack of boron in soil and yield, generally 20-30 grams of borax per plant. 3. 350-400 times borax or boric acid water is sprayed during flowering and young fruit period. Borax is insoluble in water and should be sprayed with alcohol before spraying.

Box Mod

Box MOD of Various of products, including Wood Box Mod,Aluminum Box Mod,Brass Box Mod,Copper Box Mod  and Stainless steel Box Mod with various colors, provide product pictures and basic parameters, we are committed to supply chain management, we are a professional Chinese manufacturer of Mechanical Mods Kit and we are looking forward to your cooperation.

Box Mod Vape

Box Mod Vape,Thick Smoke Vape,Mod Box Kit Vape,Original Mod Vape

Dongguan Marvec Electronic Technology Co.,Ltd , http://www.marvec-cn.com