Key points of wheat spring management technology

One year's plan lies in spring, and the winter wheat that has been dormant for a winter has entered the jointing stage of turning green from south to north. This period is an important node of wheat growth and development and seedling transformation, and also a key period of field management. The following work should be done:

1, fertilizer and water management

Look at the sky, wheat, sky and seedlings, and do a good job in fertilizer and water management. Sow the weak seedling wheat field late, and give priority to "early promotion". Topdressing should be carried out when the ground temperature is stable at 5 cm and above 3 degrees during the greening period. In wheat fields with normal or prosperous seedling conditions, "controlling stability" is the main method, and fertilizer and water management can be postponed until jointing stage.

2. Management of diseases, pests and weeds

Give priority to prevention, stress timeliness, and do a good job in green prevention and control of diseases, pests and weeds. Chemical weeding and pest control should be carried out in time. If chemical weeding is not carried out before winter, it can be carried out when the average temperature of the day is stable above 8 degrees. At the same time, special attention should be paid to the prevention and control of wheat rust, sheath blight, virus disease, red spider and cyst nematode disease.

3. adversity management

Prevent freezing and reduce disasters, improve quality and increase efficiency, and ensure high-quality wheat production. The prevention and control technology of "freezing disaster reduction" should be adopted in the spring management of wheat, and the weather forecast should be paid close attention to, and water should be given in time before the cold current comes to prevent frost and freezing injury in the later period, and remedial measures such as watering and topdressing should be taken in time in case of freezing injury.

Growth habit of wheat:

Deep soil layer, good structure and deep tillage layer are beneficial to water storage and fertilizer conservation and promote root system development. Soil structure refers to the proportion of solid (organic and inorganic), liquid and gas, which is closely related to soil moisture, air, temperature and nutrients. For example, sandy soil and heavy clay have poor structure and are difficult to form high yield.