The late stage of wheat growth is the most critical period for the formation of wheat yield and the most critical period for wheat field management, and the grain needs to absorb a large amount of water and fertilizer during the development process, and the supply of water and nutrients has a direct impact on the formation of yield. Therefore, it is necessary to do a good job in the regulation and control of water and fertilizer to meet the physiological needs of the normal development of wheat. However, attention should also be paid to preventing the occurrence of wheat greed and late ripening.
Greedy green and late maturity refers to the wheat to reach the maturity stage, the stems and leaves are still green, the vegetative growth is vigorous, the grain development is slow, has not been able to mature, can not be harvested in time, resulting in the reduction of wheat yield and quality decline, at the same time, it will also affect the sowing of the next crop, resulting in the postponement of the autumn crop sowing date.
Prevention and control methods
Control the amount of nitrogen fertilizer: after wheat enters the filling period, it generally does not need top dressing, especially for cohesive soil, and can not top apply urea, and the amount of pure nitrogen fertilizer during the whole growth period should not exceed 30 kg, which is converted into urea, and the total amount can not exceed 70 kg.
Control watering: After the wheat enters the filling period, it is necessary to do not dry up and do not water, even if watering is needed, the amount of watering is appropriate to the wheat field 5~10 cm of soil can be held into a clump by hand, and it is not allowed to flood irrigation.
Spraying high concentration of potassium dihydrogen phosphate: For plots with high density of field groups and late maturing of green and late maturity, 300~500 grams of 99% potassium dihydrogen phosphate can be used per mu in the later stage of grain filling (about 20 days before wheat harvest), and 20 kg of water should be sprayed evenly, and it should be sprayed twice continuously. Due to the high concentration of potassium dihydrogen phosphate, it can improve leaf photosynthesis, accelerate grain filling, inhibit vegetative growth, and prevent wheat from being greedy for green and late maturing.
What to do if wheat is greedy for green and late ripening is introduced here, I hope it will help you. If you want to buy high-quality and high-yield wheat seeds, you can download the seed bank App, and the country's excellent wheat varieties are available for everyone to choose.
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