Smart fertilizer can prevent pear yellowing

Pear tree yellowing generally begins with discoloration of the leaves. In severe cases, the whole leaf turns white, and necrotic spots form on the edges of the leaves. The recurrent new branches and leaves are relatively thin and the axillary buds are not substantial. The main cause of yellowing is iron deficiency. In neutral soils, large fertilizers and large waters, especially nitrogenous fertilizers, will cause new shoots to grow too prosperous. Inadequate absorption of iron will also cause new shoots to exhibit varying degrees of iron deficiency. In the case of chlorosis, in this case, pear yellow can be controlled through balanced fertilization, increased organic fertilizer, more application of biological fertilizers, and control of shoot growth.

Formula fertilization: Phosphorus and Potassium Fertilizer 1 kg + Organic Fertilizer 3 kg + Microorganism Complex 300 g, Appropriate amount of Ferrous Sulfate, Bud Fertilizer Once, Swelling Fruit Fertilizer once, Overwintering Fertilizer once, Totally 3 times a year. Need special attention is that bud fertilizer must be less on nitrogen fertilizer, heavy organic fertilizer and biological fertilizer, normal fruit trees can reduce the amount of ingredients. Phosphorus and potassium fertilizers can be used in more than 46% of the compound fertilizer, organic fertilizer can be replaced by biogas, complex bacteria is Bacillus subtilis + Bacillus mucilaginum, or new force compound bacteria.

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