Wheat micro-fertilizer

During the whole growth and development of wheat, it is necessary to observe the wheat leaves and apply micro-fertilizer to ensure the normal growth and development of wheat.
"Three-color" wrinkled leaves:

When the wheat is deficient in zinc in the growing season, the leaf margin of the wheat leaf is shrunken or twisted, and the veins are green to yellow and white on both sides. It is a yellow-white-green striped strip with a short heading and small spikes. Immediately spray 2-3 times on the leaf surface with a 0.3%-0.4% zinc sulfate solution.
Yellow and white leaves:

This type of leaf is caused by iron deficiency. At the beginning, the leaf veins of the young leaves are green and yellow, the veins remain green, and the whole leaves are green. Later, the whole leaves are yellowish white. For this, the surface can be sprayed 2-3 times with 0.75%-0.9% ferrous sulfate solution.
Sharp white edge yellow leaves:

The tip of the blade turns white and the edges are yellow-gray. These leaves are caused by copper deficiency. In severe cases, it is not possible to head at the heading stage. The control method is: foliar spraying 2-3 times with 0.03%-0.04% copper sulfate solution.
Soft drooping leaves:

When wheat is deficient in manganese, the leaves are soft and drooping, and the veins turn from green to yellow. For this purpose, foliar application can be carried out twice with 0.1% manganese sulfate solution.
Yellow and white spotted leaves:

When the wheat is deficient in molybdenum, the leaf color becomes lighter, and fine yellow and white spots appear along the veins in parallel, and gradually connect into a line or a sheet, and finally the front part of the leaf is dried up. For the phenomenon caused by such molybdenum deficiency, the prevention and treatment method is: foliar spraying 2-3 times with 0.05%-0.1% ammonium molybdate solution.
Purple brown leaves:

When the wheat is deficient in boron, the growth period is delayed, and the leaf tip is purple-brown. At the same time, its flowers are not loose powder, pollen is less or deformed, sometimes there is no pollen, the ovary is laterally enlarged, the husk is not closed in the early stage, and it is withered in the later stage. It can be sprayed with 50-100 grams of boric acid and 50-60 kilograms of water, usually sprayed once in wheat seedling stage and beginning seeding stage.

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