How should wheat cope with the "cold spring" in early spring?

Spring is a transitional season from winter to summer. Cyclone activity is particularly frequent and the weather is changeable. Sometimes at noon, the temperature will drop below 10 degrees Celsius, and even there will be rain and snow, sometimes as long as 10 day and a half. This is what people call "cold spring". ? The preventive measures he put forward are: winter irrigation and spring irrigation should be carried out when conditions permit. Winter irrigation can keep the ground temperature and avoid frostbite of fruit trees, while spring irrigation can reduce the ground temperature and delay the time of germination and flowering. Secondly, coating the trunk with amino acids can increase the nutrition of the tree and enhance its cold resistance.

Pour green water or get up in time. Water the wheat field before cooling to reduce the change of ground temperature. Moreover, after irrigation, soil moisture, soil thermal conductivity and soil temperature increase. The microclimate near that surface can be adjust. First, before the jointing stage after turning green, the leaves were mainly frozen during this period. Frozen leaves are soaked in boiling water and gradually dry after being exposed to sunlight. Because the young spike meristem (growth point) wrapped at the top of the stem is more sensitive to low temperature than leaf cells, orphans are severely withered all over the ground.

For the northern region, it is very dry every spring. If it is found that the wheat field is seriously dry, it is best to water it, not the water for jointing, but to ensure that the water in the wheat field absorbs more solar heat energy. Generally speaking, there are six main points to prevent winter wheat from cold in spring, namely, seed selection, appropriate late sowing, early suppression, watering to increase temperature, fertilization to promote growth, and spray prevention and control. These six points should start from wheat sowing to spring management of wheat seedlings, and every link cannot be relaxed. ?

To prevent the "spring cold" of wheat, it is mainly to "choose two nights, three towns, four watering five fertilizers and six medicines". "Selection" means selecting cold-resistant varieties when sowing. The phenomenon of "late spring cold" in Jiaodong area is serious, so we must choose seeds suitable for planting in Jiaodong area. "For wheat, the influence of late spring chill is also very great. In spring, everything begins to recover and grow, and wheat is no exception. This is a critical period for increasing wheat production. At this time, it is generally necessary to fertilize and water and strengthen management.