Cold wave warning: the temperature drops suddenly 18℃, and heavy rain strikes. Is it a cold autumn? Look at what the agricultural proverb says.

10 since June 3, China has experienced a climate in which high temperature and cold wave coexist. Most parts of the south are affected by subtropical high, and the temperature keeps rising, just like summer. However, due to the arrival of strong cold air in the north, the temperature has dropped.

02. Is it a cold autumn this year? With the arrival of this wave of cold air, many people are also worried about whether this year is cold autumn. In fact, the answer has long been given in agricultural proverbs. Let's have a look.

2. Literally, it means "The Double Ninth Festival is sunny, the winter is cold, the Double Ninth Festival is cloudy, and the winter is warm". If the Double Ninth Festival is sunny, it means that the cold air will arrive early, and there will be more rain and snow in the whole winter, and the temperature will be very cold.

4. "It rains three feet at the end of the autumnal equinox, and then it freezes three feet." The end of the autumnal equinox is the end of the autumnal equinox solar terms. As soon as the National Day holiday is over, we will enter the cold dew solar term. Now it is the end of the autumnal equinox, and until the 7th, many parts of the country are welcoming cooling, heavy rain and windy weather, which is just in line with this statement.

For greenhouse crops, we should also do a good job of heat preservation, increase the temperature of plastic film, and reduce the air humidity in the greenhouse to avoid diseases. what do you think?