Potassium is a necessary nutrient for wheat growth and development, and it is also a large amount of nutrients. If it is lacking, it will show the corresponding deficiency symptoms through the external shape of the plant. Production is often used as a basis for the diagnosis of deficiency and remedial measures. When wheat lacks potassium, the plants grow slowly, the roots develop poorly, perishable, the stems are short, and the leaves are dark green or blue-green, and are covered with soft undergrowth. The tips and edges of the wheat are brown and then brown and scorch, but the veins are still green. In severe cases, the entire leaf withered, the plants wilted, easy lodging, premature aging, ear small particles light, quality deterioration. Remedial measures: Potassium deficiency at seedling stage, 15 kg per mu with 15 kg of potassium sulfate, or 100 kg of plant ash, followed by ditching between rows, followed by 1%-2% potassium sulfate solution or 0.2%-0.3% potassium dihydrogen phosphate solution Or 5% to 10% of the ash leaching liquid foliar spray.
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