Experts remind that at the end of the autumn harvest, beware of frost, how to prevent frost?

Paying attention to weather changes, harvesting crops before frost occurs, grabbing seeds in time, increasing ground temperature, strengthening the internal management of greenhouses, and paying attention to temperature changes are all good ways to prevent frost disasters.

The autumn harvest is in full swing in various places, and many places have entered the sweeping stage, but at this time, the cold air is constantly coming, and frost may occur in many places. If the frost weather arrives, the crops in the farmland will be harmed, affecting the yield and quality of crops, so in the period before the frost arrives, we should pay attention to the weather changes in time, strive to harvest the crops in the field before the frost occurs, and try to return the grains to the warehouse.

Pay attention to the weather changes, understand the time of frost arrival, harvest the grain and vegetables in the field before the frost occurs, and store them in a safe place, so that the harvest of the year can be settled, and when the frost occurs again, it will not cause harm to the vegetables and crops in the field, and will not affect the income of farmers. Timely rush is also an effective way to deal with double action, in some areas need to plant late rice and hybrid rice, at this time should be in time before the frost occurs, even if the frost occurs will not freeze the seeds or seedlings to death, but after the frost occurs and then planting will be late solar terms affect its maturity.

To prevent frost damage to crops, it is also necessary to water crops frequently to keep the soil moist, because the moist soil heat dissipation is slow, and the low temperature will not let the crops in the field be affected by frost, and when the soil is dry, the heat dissipation is faster, and the crops are more affected by frost. In some places, smoke can also be used to form insulating clouds in a small area, which can also reduce the occurrence of frost damage and reduce the damage of frost to crops.

Before the frost occurs, you can hoe and loosen the ground frequently, which can also increase the ground temperature and prevent the ground temperature from dropping rapidly when the frost arrives, which will affect the growth of crops. Those who plant greenhouses must strengthen the internal management of greenhouses to prevent the temperature in the greenhouses from plummeting when frost arrives, affecting the vegetables and fruits in the greenhouses. When the frost comes, the tomatoes, cucumbers and eggplants in the greenhouse are in the vigorous growth period, at this time, we must strengthen the work of heat preservation and cold protection, and water in time to harvest.

Doing this well can effectively prevent frost, which can have a negative impact on the crops in the field, and can also minimize the losses caused by frost.

As long as it is prevented from loosening, for a long time, you must do a good job of personal protection in your daily life, strengthen your own warmth measures, and improve your physical fitness and immunity in your daily life, which is more conducive to health.

Fumigation is the most economical and practical method of antifreeze, but the antifreeze effect is not as good as that of plastic film.

We can light them with some straw to form smoke. The temperature of the smoke is used to raise the growing temperature of the crop to prevent frost. When using smoke, you need to control the direction and be at the forefront of the scene.

Never know if you'll be able to swim against the wind. The best way to use smoke is in the second half of the night so that the smoke can last into the morning. This method has a good antifreeze effect and is economical.

It is the use of burning objects to form a smoke screen to achieve the purpose of anti-freezing. <>

The disinfection method is to accurately measure the wind direction, dig a small round well about 30cm deep and 90cm in diameter at the head of the antifreeze zone every 10m or so, put the hay underneath, and stack the wet grass on top as smoke material. According to the forecast, when the temperature drops below 1.

When the temperature is above 0, it ignites and emits smoke. The ignition time should be well controlled, not too early or too late. The smoke will continue until the sun rises at sunrise and the humidity rises again.

Frost is a relatively common agrometeorological disaster that occurs in winter and spring, usually due to a cold wave to the south, where the temperature drops sharply below zero in a short period of time; Or after a cold spell, the weather changes from cloudy to sunny that night due to strong radiation on the ground, which is often referred to as adding insult to snow. The harm of frost to garden plants is mainly to freeze the water in plant tissues and cells, resulting in physiological drought, causing damage or death, and causing huge losses to garden production. It not only protects against the attack of cold air from the outside, but also reduces the loss of heat on the ground.

We can cover the plants with straw, wheat straw, plantains, weeds, nylon, etc. , which not only prevents the attack of cold air from the outside, but also reduces the loss of heat on the ground. Some dwarf seedlings and plants can also be buried in the ground to prevent frost.

This method prevents frost only on a small scale, and has the advantage of a long duration.

You can light some firewood or grass or light some cow dung, and then smoke and freeze, these smoke can be very good to block the heat loss from the ground.

You can use masking methods, such as covering the ground with some plants or using fumigation, which can also raise the temperature of the ground.

To prevent frost, you should wear more clothes, and pay attention to keeping warm in the morning and evening, so that you can effectively prevent frost.