Wheat seedling deficiency difference remedy
After the wheat is planted, the basic seedlings are insufficient, and the reasons can be distinguished. Measures should be taken to remedy in time.
Timely replanting of wheat fields with severe lack of seedlings and ridges should be re-planted with seeds of the same variety at the emergence stage.
Shifting and sizing is good for the whole field. Only a few areas lacking seedlings and few seedlings can be transplanted in the 3rd leaf stage of wheat. When transplanting, do not press the heart, do not reveal the white, bury the water and cover it, and properly apply the fertilizer to facilitate the slow seedling.
Drought hydration should be timely replenished in the wheat field due to drought and lack of seedlings. Once a day, even for 3 to 5 days, the growth of wheat seedlings is normal and the seedlings are strong.
The late-sown wheat field planted by warming and mulching sowing, such as wheat, has not cooled out after planting, and encounters cooling weather. In addition, high soil moisture, low ground temperature and insufficient accumulated temperature will lead to prolonged emergence and emergence of seedlings. Increase the temperature and encourage the emergence of seedlings as soon as possible.
Fertilization promotes the growth of wheat fields with relatively uniform emergence, but the basic seedlings are insufficient. It can be fertilized in the emergence to the 3-leaf stage, with quick-acting nitrogen fertilizer as the main effect, early application of seedling fertilizer, promotion of early tillering, strong growth, and optimization of individuals. The purpose of winter and early development.
Remove the soil and cover the wheat field that has been soaked in the deep seedlings. It can remove some of the soil and combine it with irrigation and cultivating to improve the soil ventilation and promote the development of lateral roots.
Prevention and control of pests and diseases The main pests in winter are mainly root diseases and underground pests. It is necessary to take timely control measures such as toxic soil and root irrigation to eliminate pests and diseases, so that weak seedlings can be strengthened as soon as possible.
To prevent salt damage caused by salt damage to the wheat field, the soil should be ploughed in time, and the salt content of the soil should be reduced by washing the salt or draining the salt.
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