How to prevent the deficiency of wheat caused by improper fertilization

Nitrogen deficiency symptoms and correction techniques. When wheat is deficient in nitrogen, the plants are slender, erect, sparsely colored, yellowish until dry or dead. The stem is purple-green, with few tillers, small ears and few grains. Nitrogen deficiency in wheat can be applied to urea, and 10 kg of seedling fertilizer should be applied during the greening period. After topdressing at the jointing and booting stage, pay attention to the appropriate amount of topdressing and attacking fertilizer. Or spray the 2% urea solution twice in time, at intervals of 7 days, and then apply 20 kg of ammonium bicarbonate or urea 7 kg to 8 kg per mu.

Phosphorus deficiency symptoms and correction techniques. When the wheat is deficient in phosphorus, the leaves are green and slightly purple, with slow growth and few tillers. The stems are short and slender, with delayed heading and maturity, and fewer spikes and small grains. After the symptoms of phosphorus deficiency are found in wheat, 200 grams of potassium dihydrogen phosphate can be applied to the surface of 30 kg of water.

Potassium deficiency symptoms and correction techniques. When the wheat is deficient in potassium, the leaves are blue-green, the leaves are weak and curled. The tip and edge of the old leaf turned yellow, so that it was dry and burnt like it. The stems are weak, short, short between nodes, with few spikes and easy to fall. After the discovery of potassium deficiency symptoms in wheat, generally apply 10 kg of potassium sulphate as the base fertilizer or seedling stage combined with top dressing or foliar spray 1% potassium chloride aqueous solution or 0.2% potassium dihydrogen phosphate aqueous solution, or apply sulfuric acid in the rhizosphere strip. Potassium is 5-7 kg per mu.

This article URL: How to prevent the symptoms of wheat planting deficiency syndrome and prevent the deficiency of wheat caused by improper fertilization

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