About dog days, there is such a widely spread agricultural proverb, "male ambush fierce, female volt cool", I believe many friends have heard, this is by judging dog days "male or female", to predict whether the dog days are hot or not.
Specifically, "fierce" means that the weather will be particularly hot throughout the dog days, and "male ambush" means that if it is a public volt on the dog days of that year, the temperature will be relatively higher during the entire dog days.
"Cool" means that the weather will be cooler throughout the dog days, and "mother is cool" means that if it is a mother on the dog days of the year, the temperature will be relatively not so high and slightly cooler during the entire dog days of the year.
Dog days are the hottest time of the year
"Three dogs" is a collective term for the beginning, middle and end of the solar calendar, which generally appears between July and August of the solar calendar every year. During the dog days, the sun reaches the northern end of the year, and the northern hemisphere has long days and short nights, and the ground absorbs far more heat than it emits, and the weather is hot.
In addition, during the period of July and August, the subtropical high strengthened, and under the control of the subtropical high, the downdraft inside the high pressure made the weather clear and cloudless, which was conducive to sunlight exposure and ground radiation warming, which was also the main reason for the hot weather.
What day will you be ambushed this year (2024)? What day is the ambush?
The folk proverb says that "the summer solstice is counted in ambush", counting backwards from the summer solstice, and counting to the third "Geng day" begins to ambush. "Geng day" refers to the day with the prefix "Geng" in the ancient "Ganzhi Chronicle Law". Because the time of the summer solstice is not fixed every year, the appearance of "Geng Day" is also early and late, therefore, the annual incubation time is not fixed.
This year's (2024) summer solstice solar term is June 21, and the time of the third "Geng day" in the next count is July 15, so the time of this year's ambush is July 15, 2024.
The time of the dog days and the end of the dog days are 10 days, and the time of the middle is not fixed, some years are 10 days, some years are 20 days, which is determined by the summer solstice to the beginning of autumn between several "Geng days", if there are four Geng days between the summer solstice and the beginning of autumn, then the middle volt is 10 days; If there are five Geng days, then the middle volt is 20 days.
There are five Geng days between the summer solstice and the beginning of autumn this year, so this year's dog days are 40 days, July 15 is ambush, August 23 is the last day of dog days, then August 24 is the time of ambush.
Is this year's dog days "male" or "female"?
The judgment of "male volt" or "female volt" on dog days is mainly related to the lunar calendar date on the day of ambush.
According to the ancient distinction between yin and yang, the sun is yang and the moon is yin; Yang during the day and yin at night; The father is yang, and the mother is yin. In terms of time, the odd number is yang, and the even number is yin.
Therefore, if the lunar date of the day of the ambush is singular (odd), then this day is considered a sunny day, and the corresponding dog day is the male day; Conversely, if the lunar date of the day of the ambush is an even number, then this day is considered a cloudy day, and the corresponding dog day is the mother day.
This year's dog days are on July 15, and the lunar calendar date on that day is the tenth day of the sixth month, and the first ten days are even (even), so according to this way of judgment, this year's dog days are "mother days".
"The male is fierce, the female is cool"
According to the agricultural proverb "the male is fierce, the mother is cool", this year's dog days belong to the category of "mother is cool", which may indicate that this year's dog days are not so hot and will be relatively cooler.
So the question arises again, is it good to be cool during dog days?
From the perspective of people's daily life, most friends like dog days that are not too hot, especially for people who work outdoors, if it is too hot, it is easy to feel stuffy and uncomfortable, which increases the risk of heat stroke.
From the perspective of agricultural production, the dog days are a critical period for the growth of many summer crops, and hot weather has both advantages and disadvantages.
In the case of summer corn, for example, if the weather is not so hot during the dog days, if you add a relatively high amount of rainfall, it is not likely to be dry, so from the perspective of moisture, it is good to be cool.
From the perspective of corn accumulated temperature, if the dog days are too cool and there are relatively many low temperature weather, it may lead to insufficient accumulated temperature, corn kernels are not full, and the 1000-grain weight decreases, resulting in reduced yield.
Therefore, too cool during dog days has both advantages and disadvantages for the growth of crops in the field, and the best weather is the high temperature when it should be hot, and the rain when it should rain.
There is an old saying that "if you are cold or not, you will not be an adult; The heat is not hot, the grains do not bear", so, don't be afraid of the dog days of the hot, and don't be afraid of the three or nine days of cold, the four seasons of the year are distinct, and the crops are easier to get a good harvest.
Based on the above, this year's July 15 ambush, a total of 40 days, according to the folk saying, this year's dog days are "mother volts", combined with the agricultural proverb "mother volt cool" saying, or will be cool dog days.
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