Pictures, prevention and treatment of zinc deficiency in grape

What about zinc deficiency in grapes? What causes zinc deficiency in grapes? How to prevent and cure zinc deficiency in grapes? Netizens with experience in grape cultivation are also asked to introduce grapes as perennial lianas, which are generally cultivated in greenhouses or equipment scaffolding, resulting in the vineyard soil being unable to plough for a long time, resulting in the deposition or loss of elements in the soil. resulting in symptoms of element deficiency. Today, the farming network has sorted out the harm, causes and prevention methods of grape zinc deficiency, which are listed in detail below for netizens' reference. The harm of grape zinc deficiency: when grape is zinc deficient, the lower leaves of the branches are often speckled or yellowed, and the top leaves are narrow. When the grape is zinc deficient, the branches are slender, the internodes are shortened, and the grapes lose green. Some grape varieties are characterized by loose ears, few seeds or no seeds, small particles and the phenomenon of large and small grains, which seriously affect the selling phase of grapes. The cause of zinc deficiency in grape: zinc is mainly related to the synthesis of plant auxin and the formation of chlorophyll. During zinc deficiency, plant auxin can not be formed normally and chlorophyll decreases, resulting in dwarfism and chlorosis of plant tissue. In alkaline soil, zinc salt is often insoluble and not easily absorbed by plants, resulting in zinc deficiency in grapes. Zinc deficiency is caused by the decrease of zinc content in sandy soil due to the loss of zinc caused by Rain Water erosion. Zinc deficiency is also prone to occur in barren hillside vineyards. And different grape varieties have different sensitivity to zinc, such as white rose fragrance, scarlet grape and other varieties are sensitive to zinc and are prone to zinc deficiency. Prevention and treatment of grape zinc deficiency: method 1, if the vineyard soil is sandy or saline-alkali soil, we should apply rotten organic fertilizer to improve the soil. Method 2, for example, when the grape is zinc deficient, zinc sulfate can be smeared on the cut when pruning. Method 3. When fertilizing in the vineyard, it can be mixed with organic fertilizer and apply 100kg zinc sulfate per mu of grapes; if it is caused by lack of magnesium and copper, fertilizers containing magnesium, copper and zinc can be applied at the same time. Click to view "the role of zinc sulfate" method 4, you can also spray the leaves with 0.05%-0.1% zinc sulfate solution 2-3 weeks before flowering or when zinc deficiency is found. When spraying, the concentration of zinc sulfate must not be too high, so as not to cause drug damage to grapes. Prevention and treatment of boron deficiency in grape methods for prevention and treatment of magnesium deficiency in grape