Wheat grows up and leaves fall down

First, raise the roots. The decrease of root vigor in late wheat is closely related to its grain weight, and it is accompanied by premature plant failure, which can not meet the needs of grouting. Therefore, when wheat enters the later stage of fertility, raising the roots becomes the main target. The main way to raise the roots in the later period is to clear the grounds early and to achieve the purpose of drought irrigation and drainage. In particular, in rainy weather, the water level in the ditch must be reduced to maintain the field level. No water, no stains, keep the permeability of the soil.

Second, Paul leaves. The material source of wheat grouting is mainly the product of photosynthesis in the later leaves, so the measures of leaf protection in the later period are very important.

Leaf protection measures are mainly the rational use of fertilizer and water, combined with watering on some defertilized land as appropriate fertilization, followed by foliar spray fertilizer, spraying 1% to 2% of urea solution, 0.2% of potassium dihydrogen phosphate in the early grout. Solution, acres spray 58 to 80 kg or other foliar fertilizer. It can effectively delay the aging of the flag leaf, enhance the ability to resist dry hot wind, increase the photosynthetic intensity, and increase the number of grains and grain weight.

Third, prevention. As the saying goes, "The wheat is down." Late lodging of wheat generally reduces production by 20% to 30% or more, and severe cases reach 50% or more. The sooner the prevention is, the better. Prevention measures: First, for the seedlings that have fallen on the seedlings, shake off the dew on the plants in the morning on sunny days, and suppress the growth; Second, increase the use of plant ash, Shun Mai ridge into the roots, can enhance plant resistance to lodging, increase grain weight; Third, watering should be conducted without wind, so as to avoid root lodging after pouring. In particular, it is poured with grout and glutinous water. Fourth, it is a field with excessive density, and it can be appropriately sparse. Broad-leaved wheat seedlings can be cut a third of the upper leaves, reduce the load, change the top-heavy situation, in order to prevent collapse. If the wheat field has fallen flat, do not support the bundle, and let it be restored by the nature of its own stalk.

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