Kiwi is a plant from the group of dicotyledonous flowering plants, monocotyledonous, in the order of Khalang Sanan and category Kivian. Originally, it was a native plant in southern China.
Kiwi is a promising plant and should be cultivated in a soil that provides the necessary materials well. This plant absorbs nutrients from the soil well, and if there is a shortage of nutrients, it will soon show signs of deficiency. If other plants do not show signs of deficiency quickly
In fact, one of the most important factors that is effective in the quantity and quality of kiwi is fertilization.
Kiwi plants are sensitive to fertilizers and a soil analysis will determine if your kiwi plants need additional nutrients. When fertilizing, the soil must be moist.
Therefore, gardeners should use organic fertilizers and chemical fertilizers in their gardens to achieve higher yield. The use of nutrients will usually lead to an increase in performance, although the use of large or unbalanced amounts of nutrients will have adverse effects.
The role of nutrients in the growth and development of kiwi:
Of you:
Nitrogen is the bottleneck of plant growth and its deficiency severely reduces the growth of kiwi
Nitrogen deficiency is first seen in old leaves and then in younger leaves. A lot of nitrogen also reduces the growth of kiwi, which starts from the edge of the leaf and reaches the middle veins in the form of burns between the leaves.
Therefore, providing the appropriate and required amount of this element to the plant has a great role in its production. Excessive use will cause the kiwi fruit to soften during storage and lead to rotting during harvest.
Phosphorus:
Its deficiency causes thinning of stems, shrinking of leaves and reduction of effective kiwi growth. And too much phosphorus in the plant also interferes with the absorption of elements such as zinc.
Potassium:
Potassium deficiency has a great impact on reducing the quality of the produced product and lowering the health and vitality of the plant and the product. The symptoms of its deficiency are the complexity of the leaf margins, the change of the leaf color to brown, the burning and necrosis of the leaves, the falling of the leaves and the shrinking of the fruits. . Also, the rotting of blossoms in kiwi is affected by potassium deficiency. Potassium deficiency severely reduces fruit production and affects the quantity, size and quality of the product.
Kiwi
Kiwis need nitrogen at least 150 kg and 165 kg of potassium per hectare annually
Kiwi trees need about 150 kg of nitrogen and 165 kg of potassium per hectare at least annually.
In April, the amount of fertilizer for each kiwi vine is 1100 grams of urea, 500 grams of diammonium phosphate, one kilogram of potassium chloride, 300 grams of magnesium sulfate, 200 grams of manganese sulfate, 200 grams of zinc sulfate, and 50 grams of boric acid.
The remaining nitrogen and potassium fertilizers are recommended in two stages and one and two months apart from the first stage in the form of irrigation fertilizer method for fertilizing gardens. became
Among the fertilizers produced by Yadnegar Structures Company (Cinco) that can be effective for kiwi, powder fertilizers such as zinc sulfate, urea phosphate and liquid fertilizers such as Fruset and complete fertilizers can be mentioned.
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