What to do when wheat seedlings turn yellow? Take remedial measures as early as possible
@#@245@#@When wheat grows into the winter and spring seasons, the wheat seedlings often show yellowing and even dying, and fertilization alone cannot turn the wheat green again. Once yellowing occurs in wheat, if remedial measures are not taken in time, it may cause serious yield reduction in wheat.
Yellowing from pests: yellowing of leaves caused by wheat aphids and wheat spiders sucking leaf sap, mainly occurring around the overwintering period. For every 667 sq m, 65-75 ml of 40% omethoate emulsifiable concentrate can be mixed with 50 kg of water for spray control.
Yellowing from disease: wheat sharp eyespot damages the root system and stems, hindering the transport of nutrients and water and causing wheat leaves to turn yellow. For every 667 sq m, 20 g of 12.5% hexaconazole or 50 g of 20% jinggangmycin can be mixed with 50 kg of water for spray control at the stem base.
Yellowing from insufficient fertility: mainly occurs in plots with poor soil fertility and severely insufficient base fertilizer, mainly shown as yellow color, poor tillering ability, and weak seedlings. For such wheat fields, in addition to applying sufficient organic fertilizer, an appropriate amount of chemical fertilizer should also be added. For every 667 sq m, apply 7.5-10 kg of urea and 30 kg of sulfa fertilizer, applied deeply in furrows; for every 667 sq m, use 1 kg of urea plus 5 ml of yemianbao mixed with 50 kg of water for foliar spraying, which can prompt the leaf color to turn green quickly.