In the process of growth and development of wheat, not only nitrogen, phosphorus, potassium and other elements are needed, but also trace elements play an important role in the growth and development of wheat. In the absence of trace elements, wheat will show some symptoms of deficiency:
Deficiency of zinc: wheat lacks zinc during its growth period, the leaf margin of the wheat leaf is shrunken or distorted, and the veins are greenish yellow to white on both sides of the leaf veins. It is a striped strip with yellow, white, and green triads, and has late heading and small panicles.
Iron deficiency: iron deficiency during wheat growth. At the beginning, the veins of young leaves lose green and yellow, and the veins remain green. Afterwards, they are completely chlorotic. Sometimes the whole leaf is yellow-white at first.
Copper deficiency: lack of copper in the growing period of wheat, the tip of the wheat leaves turned white, the edge of yellow gray, there are sharp yellow edges. When it is severe, it cannot head at the heading stage.
Manganese deficiency: When wheat is deficient in manganese, the leaves are soft and sagging, and the veins change from green to yellow.
Molybdenum deficiency: When wheat is deficient in molybdenum, the leaf color becomes lighter, small yellow-white spots appear along the veins of the leaves, and gradually become linear or flaky, and finally the leaves are dried up.
Boron deficiency: When the boron deficiency occurs in wheat, the growth period is delayed and the tip of the leaf is purple-brown. At the same time, its flower is not loose powder, pollen is less or deformed, sometimes no pollen, lateral enlargement of ovary, glume is not closed early, withered later.
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