Wheat yellow seedlings should be given the right medicine
There are different reasons for wheat yellow seedlings. 1. After infestation of yellow seedlings and wheat cultivars, the heart leaves are atrophic and stagnant. When the leaves are heavy, the leaves are yellow, and the water loss is withered. The pesticides such as dichlorvos, trichlorfon and dimethoate should be used in a timely manner to add 1000 times of vinegar mixed spray. Kill, add 2% urea when spraying, can promote transformation of wheat seedlings. 2, disease yellow seedlings infected with rust caused by yellow seedlings, the initial distribution was a bit, should be promptly used drug control, to prevent the spread of proliferation, available 15% triadimefon 1000 times liquid, even spray 2 or 3 times. 3, nitrogen deficiency yellow seedlings showed that the wheat seedlings chlorosis uniform yellow, dry tips, the old leaves of the lower yellow and withered, plantlets dwarf leaves weak, fewer tillers. This kind of yellow seedlings are mostly found in plots with poor soil, insufficient base fertilizer, or unsatisfactory topdressing. For yellow seedlings caused by nitrogen deficiency, promptly apply nitrogen fertilizer such as ammonium bicarbonate, urea, and human fecal urine to promote long growth. 4. Manganese-deficient wheat seedlings are deficient in manganese, and the new leaf veins are striped and chlorotic, turning yellow-green to yellow. Sometimes the leaves are light green, the yellow stripes expand into brown spots, and the tips of the leaves scorch. In this regard, 0.1% to 0.3% of manganese sulfate solution should be promptly sprayed 2 to 3 times. 5, potassium deficiency yellow seedlings first and then along the veins stretching, the yellow part of the junction with the Ministry of Health is clear, was mosaic, leaves yellow and soft, late often attached to the ground. This type of yellow seedlings occurs mostly in sandy areas and is generally characterized by edging and edging. 6, potassium deficiency and yellow seedlings per acre can be used to spread 100 kg of plant ash on the foliage, or chase chemical potassium fertilizer 10 kg. Foliar can also be sprayed with 1% potassium chloride solution, or 2% ~ 3% potassium nitrate solution, or 5% of the grass ash leaching solution, or 0.3% potassium dihydrogen phosphate solution, and generally spray 2 ~ 3 times. heating Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.haloxylonhospital.com