Cause: Wheat yellowing caused by freezing injury at low temperature. The stain is yellow. The irregular return of straw from the previous crop to the field led to the yellowing of "hanging root seedlings" Improper use of herbicides causes poisoning and phytotoxicity, leading to yellowing. Wheat yellowing caused by physiological factors such as lack of fertilizer. Wheat yellowing caused by diseases and insect pests. Wheat without chemical mixing has serious pests and diseases, which will also lead to the yellowing of wheat leaves.

Medication: Wheat turns yellow due to freezing injury, drug injury and waterlogging injury: appropriate amount of quick-acting fertilizer is topdressing, and plant potential activator or biostimulant or high-quality foliar fertilizer is sprayed on the leaves. Fertilization yellowing: green tillering fertilizer can be applied appropriately. ? If the occurrence of wheat spiders is large and wheat yellowing is obvious, abamectin, pyridaben, fenpropathrin and bifenazate can be selected for control.

wheat

Wheat (scientific name: Triticum aestivumL. ) is the floorboard of the genus Triticum, and its representative species is common wheat, which is a gramineous plant and a cereal crop widely planted all over the world. Wheat caryopsis is one of the staple foods of human beings. After grinding into flour, it can be made into bread, steamed bread, biscuits, noodles and other foods, and after fermentation, it can be made into beer, alcohol, white wine (such as vodka) or biomass fuel. Wheat is one of the three major cereals, almost all of which can be eaten, and only about one-sixth of which is used as feed.