The winter of this year is undoubtedly a dry and warm winter. The effects of warm winter air on the growth of crops are as follows: 1. Warm winters increase the number of pests and diseases, which is detrimental to the pest control next year. Second, warm winter air makes wheat germinate or resume growth, cold resistance is reduced, and it is vulnerable to freezing damage; at the same time, it also freezes and thaws the top soil of wheat fields, loosens soil, loses water dispersion, and causes less rainfall, soil moisture gradually declines, making winter wheat late winter. There are hidden dangers in both growth and returning to growth. Due to lack of moisture in the soil, if there is no precipitation or irrigation fails later in the season, crop drought will reduce production. Third, the impact on production depends on the weather in the spring. If there is no major adverse weather in the spring, the impact on production is not significant. In the past few years there was a warm harvest of warm winter gas. Timely measures should be taken in light of future weather changes.
In light of the above points, the wheat spring tube should be strengthened. It should be classified according to local conditions and pay attention to the following aspects:
First, timely prevention and control of pests and diseases. We must pay close attention to the occurrence trends of various types of pests, early detection, early prevention and control, and strive to eradicate pests and diseases in the initial stage. Spring spider mites and sheath blight are the most important prevention and treatment work.
Second, due to seedlings, universal cultivator. Early cultivators should be cultivated, but they should be adapted to local conditions and classified management. For wheat fields with poor growing conditions or growing in general, moderate shallow ploughing should be adopted to remove compaction, warming and protecting the roots, promoting root development, and making wheat seedlings stronger; for wheat fields with prosperous tendencies, proper deep cultivating, partial root cutting, and cutting off It grows too fast and controls strong growth to prevent freezing damage. Careful cultivator suppression must be carried out at noon or two or three pm after the seedlings have been thawed to prevent injury.
Third, classified management according to public opinion. Check the situation in time and take corresponding measures according to the soil and weather changes. Take measures such as smashing and repression to reduce water consumption, warming up and protecting the growth of wheat. Early spring should be timely ploughing, especially for late sowing and loss of serious wheat, in order to promote early delivery and early transformation. For those wheat fields with serious shortages, they must be filled with drowning water in a timely manner.
Fourth, prevent freezing injury. According to previous years’ experience, warm winters are often cold and cold. Therefore, pay close attention to weather changes. Before the onset of the cold current, measures such as watering or spraying hormones are used to prevent freezing damage. Once frost damage is caused, measures such as cultivating, fertilizing, watering, spraying hormones, etc. should be taken in time depending on the degree of frost damage, and the loss of freezing injury can be minimized.
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