What does frost mean? What are the requirements for frost protection during flowering?

Frost is one of the agricultural meteorological disasters. The occurrence of frost will cause damage to growing crops, resulting in reduced yields and reduced quality. In fact, frost has both advantages and disadvantages for crops. Let's start today's learning journey by understanding what frost means! I hope you can gain some knowledge about it!

Contents of this article

1. What does frost mean?

2. What are the requirements for frost protection during flowering period?

3. What to do if there is frost on the car glass

What does frost mean?

The basic explanation is that crops are damaged by the cold wave.

The detailed explanation is that it refers to the weather phenomenon in which the temperature near the ground drops below zero degrees Celsius, causing plants to suffer from frost damage.

Frost is a common agricultural meteorological disaster that occurs in winter and spring. It is usually caused by a cold wave moving southward, with the temperature dropping sharply to below zero degrees Celsius in a short period of time; or by the strong radiation cooling of the ground on the night when the weather turns from cloudy to sunny after the cold wave. This is what people often call "adding insult to injury". The harm of frost to garden plants is mainly to freeze the water in the cells of plant tissues, leading to physiological drought, which causes damage or death to the plants, causing huge losses to garden production.

What are the requirements for frost protection during flowering period?

Early spring in the north is susceptible to frost, which damages flower buds and affects the fruit setting rate of fruit trees and the growth potential and flowering quality of perennial flowers in the second year. ① For fruit trees and woody flowers, watering and whitewashing in spring can reduce soil temperature and plant temperature, delay budding and flowering, and avoid frost damage. ② Fumigation during the frost period is effective when the minimum temperature is not lower than -2T. When the temperature is low at night, ignite the smoke and end it when the temperature warms up the next day. ③ Spray water and topdress before frost occurs. Spray water before flower buds sprout to reduce the freezing of fruit trees and woody flowers; spray potassium dihydrogen phosphate on fruit trees 1 to 2 days before frost occurs to improve the frost resistance of flowers.

What to do if there is frost on the car glass

If there is frost on the glass, it is recommended not to use hot water directly, as this can easily cause the glass to break. If there is frost on the glass, you can use a plastic scraper to scrape off the frost, and then wipe it with a rag. After getting in the car, turn on the windshield defogger to avoid fogging the glass.

In the winter mornings, the car's glass is very prone to frost. If you have to go to work in the morning, it is recommended to deal with the frost on the glass in advance.

It is necessary to use air conditioning when driving in winter, but it is not recommended to turn on the air conditioner right after starting the engine. It is recommended to turn on the air conditioner after normal driving for 10 to 20 minutes.

If you turn on the air conditioner at the beginning of driving, the engine will heat up more slowly, which will cause the engine power to drop and fuel consumption to increase.

The windshield is also very easy to fog up when driving in winter. If the windshield is fogged up, you need to use the defogger function on the car.

The front windshield is defogged by air conditioning, while the rear windshield is defogged by heating wire.

After turning on the defogger function, the fog on the glass will instantly become larger and then smaller. At this time, you must carefully observe the front to avoid traffic accidents.

After turning on the rear windshield defogger, it will automatically close after a while. This is not a malfunction of the car. It is designed to protect the heating wire.

For some cars, when the rear windshield defogger is turned on, the rearview mirror heating will also be turned on.