Dry barley field top dressing techniques

Dry and thin wheat fields often cannot be topdressed because they cannot be watered, and the consumption of some nutrients in wheat fields during winter wheat fields often causes the growth of wheat to be inhibited due to malnutrition in the middle and late periods, resulting in small spikes, small grains, and low grain weight. Therefore, we should skillfully use the local Natural conditions to timely apply fertilizers in order to increase the output of wheat. The specific method of top dressing techniques is:

Snow catch fertilizer. When winter snow is reduced to more than 10 cm, a non-volatile, fast-dissolving nitrogen fertilizer can be used. If urea is used, the amount of mu is 7.5 kg to 10 kg, evenly spread on snow, so that it melts with snow and infiltrates into the ground.

Top Ling top dressing. When the thawing has not yet been completed in early spring, the slurry is returned after application, and the soil in the upper layer can be soaked in the slurry due to high humidity. Fertilization should be applied at around 2 pm (drilling with nitrogen-phosphorus fertilizer is good) and it should be applied strictly.

Use rain to fertilize. In the case of moderate or heavy rains below, it may be applied with rain, or it may be applied after the rain, and it may be applied after the rain.

Foliar spraying. If there is no rain and no rain, you can spray on the surface. Spray fertilizer can not only increase the nutrition of wheat, but also improve the drought resistance of wheat. Mu with 2% urea solution or 0.3% potassium dihydrogen phosphate solution 50 kg to 75 kg, both can be mixed spray. We sprayed 2 to 3 times in wheat, booting and grain filling respectively. It can also be used together with agents that control wheat pests and diseases, and such operations can have a multiplier effect.

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