Wheat leaf yellowing withered remedy

70% isoproturon was sprayed on the wheat and the cold wave was encountered on the third day after the medicine. The wheat leaves are now withered and withered. Can I recover after a certain period of time? Are there any remedial measures?

Isoproturon will reduce the anti-freezing ability of wheat seedlings. After application, the wheat seedlings will be susceptible to freezing injury in severe frost weather, which means “frozen phytotoxicity”. After the occurrence of frost damage, when the wheat seedlings were greener or the victims were heavier, the frostbite was first scalded with water-like scald-like water stains, and after the water loss was dry and white, the wheat seedlings showed symptoms of yellowing when they were younger or suffered less damage.

If the wheat seedlings of the above-mentioned plots have symptoms such as yellowing of the leaves, they are caused by the “frozen phytotoxicity” of the iprolenol, and the wheat seedlings can recover after the damage is light; the wheat seedlings suffer heavy damage, especially if the seedlings are small, the phenomenon of dead seedlings may occur. After wheat leaves have suffered frostbite, the leaves lose water quickly. If the soil is dry, it will be prone to dry and dead seedlings will be more serious. Dry soil, especially seedlings, should be properly watered or watered (freezing or watering when wheat leaves or soil icing), or covered with straw and other suitable insulation, which is conducive to keeping seedlings.

At the same time, according to the field of wheat seedling damage, etc. to take supplemental fertilizer materials and other measures. If the wheat seedlings are not seriously damaged, special management measures may not be taken; if the freezing injury is heavy or even the rate of dead seedlings is high, appropriate supplementary fertilizers according to the previous fertilizer application will promote the development of wheat seedlings and the recovery of the population. If necessary, spray the humate leaves. Surface fertilizers promote the recovery of wheat seedlings, and in places where there are many seedlings, wheat seedlings can be removed from seedlings before and after the 5th leaf stage of wheat.

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