Micro-fertilizers are also trace element fertilizers. The common micro-fertilizers include boron fertilizer, molybdenum fertilizer, manganese fertilizer, zinc fertilizer, copper fertilizer, and iron fertilizer. If vegetables lack some kind of micro-fertilizer, their growth and development will be affected. Inhibition leads to a decrease in yield and quality. Here's how to apply these six kinds of micro-fertilizers to vegetables. The boron deficiency of boron-fertilized vegetables is obviously manifested in the plant stems and petioles become thick, brittle and easy to split, poor root development, dark green leaves, light and deformed new leaves, damaged or necrotic growth points, abnormal floral development, and prolonged growth period . Borax fertilizers commonly used in production include borax and boric acid. Boron fertilizer can be used as base fertilizer, top dressing, and seed fertilizer. When used as base fertilizer on boron-deficient soil, every 667m2 It can be applied with borax or boric acid 0.5～1.5kg; the concentration of seed fertilizer is 0.01%～0.1% when soaking seeds, the average fertilizer amount for 1kg of seeds is 0.4～1.0kg when dressing seeds; 0.1%～0.2% fertilizer should be used for foliar spraying Borax or 0.05%～0.1% boric acid solution. When molybdenum fertilizer is deficient in molybdenum, vegetables grow poorly and are short, and their leaves become green withered and even die. Commonly used molybdenum fertilizers are ammonium molybdate and sodium molybdate. Molybdenum fertilizer is generally used for seed dressing, seed soaking and root spraying. When dressing seeds, the average amount of fertilizer for 1kg seeds is 2-6g; for soaking seeds, use 0.05%-0.1% molybdenum fertilizer solution; the concentration of extra-root topdressing is 0.01%-0.1%. The manganese deficiency of manganese fertilizer vegetables is mainly manifested by the appearance of small brown spots between the chlorosis and yellowing of the veins of the young leaves, and the plants stop growing. The commonly used manganese fertilizer in production is manganese sulfate. When used as base fertilizer, every 667m2 Spreading 3～5kg; average 1kg seed for seed dressing is 5～7g; seed soaking concentration is 0.05%～0.1%; when used as extra-root topdressing, the concentration is 0.05%～0.1%. When zinc fertilizer vegetables are zinc-deficient, the leaf stalks will roll back, the leaves will be chlorosis, the leaves will grow in small clusters, the internodes will be shortened, and the plants will be short, which will significantly reduce the yield. In the current production, the most used zinc fertilizer is zinc sulfate. Zinc fertilizer is used as the base fertilizer to use zinc sulfate 1.0～1.5kg per mu, but it must be noted that zinc fertilizer cannot be mixed with phosphate fertilizer; use 0.02%～0.04% zinc sulfate solution when soaking the seeds; the average amount of 1kg seed fertilizer is 2～4g when dressing seeds ; Foliar spray application of zinc sulfate solution with a concentration of 0.01% to 0.05%. Copper deficiency usually causes plant dwarf, yellowing of seedlings, and necrosis of the apical meristem. The copper fertilizer commonly used in production is copper sulfate. Use 1kg per 667m2 of copper sulfate as a base fertilizer, mix it with the soil evenly when applying it; spray 0.02%～0.04% solution on the foliar surface. To avoid phytotoxicity on the leaves, a small amount of slaked lime can be added to the solution. Iron fertilization iron deficiency causes chlorosis in the veins of the tender leaves of vegetables, and the whole leaf is pale yellow or whitish. Ferrous sulfate is commonly used in iron-containing fertilizers. Ferrous sulfate can be used as base fertilizer after being mixed with organic fertilizer. The ratio of the two is 1:20; 0.5% to 1% ferrous sulfate solution is sprayed on the foliage. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Seafood Feep Fried Sea Crab,Frozen Feep Fried Sea Crab,Feep Fried Sea Crab Seafood Zhoushan Banddfoods Co., Ltd. , https://www.bandd-food.com
Common fertilizer application techniques