As the agricultural proverb goes, the white dew is early, the cold dew is late, and the autumn equinox is just at that time. Does this sentence still apply now?

Q: The farmer's proverb says: White dew is early, cold dew is late, and the autumn equinox is the time to plant wheat. Does this sentence still apply now?

The white dew is early, the cold dew is late, and the autumnal equinox is the time to plant wheat. This is a proverb that I read many times every autumn when I was a production captain forty years ago.

At that time, every summer solar term, the commune or county would hold an autumn harvest wheat mobilization swearing-in meeting to give us the indicators for planting wheat. Our captain also had to make an oath to show his determination, overcome difficulties, grab the harvest and seed, and fight the battle of planting wheat in autumn.

After you come back, arrange the autumn harvest, cut firewood and transport fertilizer. Tractors from the commune tractor station are also assigned to teams. Hafnium's task is to rest people and horses and run fast.

So I called for mobilization, so I was busy ensuring the white dew tail and autumnal equinox of wheat, trying not to plant cold dew wheat, and resolutely not to plant first frost wheat.

Because, our wheat in Hebei plain is suitable for sowing in autumn equinox. Wheat in Bailu grows too vigorously, and it is easy to jointing before winter. The cold and dew wheat is a little late, and there are not enough tillers. Only the wheat planted in the autumnal equinox tillered before the arrival of winter, without jointing. The cold dew wheat is a little late, and there is a proverb that "the first frost wheat will not fall, and the cold dew wheat has a hill", which means that the wheat after the cold dew is too late.

In recent years, the climate has changed and become warmer. Wheat doesn't die in winter, and it doesn't have to turn green in spring. After the arrival of the autumnal equinox in beginning of winter, the wheat at jointing stage could not survive the winter, and the tillers could not be separated in spring, which led to sparse wheat fields and eventually reduced production.

The climate is getting warmer, and there is a solar term in autumn, but it is not frozen in winter. It's no good reading this old almanac that "a thousand years ago, the cold dew is late, and the autumnal equinox is planting wheat at that time". According to the current climate change, this proverb should be changed to "Autumn Equinox is early, beginning of winter is late, and it was frosty at that time".

When the greenhouse effect passes and returns to the previous climate, we will "plant wheat at the right time in the autumn equinox".

The white dew is early, the cold dew is late, and the autumnal equinox is the time to plant wheat.

Listen, these jingles are very kind. Anyone who has been to or lived in the countryside knows the meaning of these farmhouses.

Agricultural proverbs are the essence of farmers' productive labor for thousands of years, and they are universally applicable truths in rural areas of China.

In rural areas, every kind of food crops, vegetables and fruits has a set of farm season jingles, which are easy to remember and understand, and can also be passed down from mouth to mouth.

Rural areas attach great importance to the busy farming season. When to plant wheat, when to plant radish, when to harvest wheat and when to pull out radish, there are specific times. If you miss them, you will get into trouble.

Although great changes have taken place in rural planting patterns, vegetables and fruits are out of season, but for food crops, it is still necessary to observe these farming seasons.

The planting pattern in the south is different from that in the north, and the details are not clear.

But in the north of Huaihe River, even in the north of Yangtze River, the agricultural season for growing wheat is basically the same.

Today is September 22nd, the autumnal equinox among the 24 solar terms. We have just finished pulling peanuts in rural Jiaodong, and we are going to turn the land out to grow wheat. However, people don't plant around the autumnal equinox as they did a few years ago, and often postpone several solar terms because the original lunar calendar is no longer applicable.

I remember that a few years ago, our northern rural areas all followed the past planting habits and planted winter wheat around the autumn equinox. Agricultural proverbs often say that "the white dew is early, the cold dew is late, and it is the right time to plant wheat", because the time of this wheat is summarized according to the local climate. Why don't people rush to plant wheat now that the autumnal equinox and solar terms have passed?

Because of global warming in recent years, there has also been a warm winter phenomenon in our northern rural areas. If we still plant according to the agricultural proverb, wheat seedlings will thrive in winter. If the cold wave comes, the wheat seedlings will be frozen, so the sowing time will have to be postponed. According to the current situation, the planting of wheat is basically delayed for about half a month, that is, after the cold dew solar terms and before beginning of winter.

It can be seen that the old almanac has fallen behind the times.

The so-called autumnal equinox planting wheat was a thing of the past at that time. In the past, farmers always planted crops according to the solar terms, but now they need to sow according to the weather changes.

If we plant wheat according to the solar terms, these days are just the season for planting wheat. Today's autumnal equinox, around the autumnal equinox, was the best time to grow wheat in the past, but this year we certainly can't grow wheat according to agricultural proverbs. At that time, what was the autumnal equinox for planting wheat? The crops were still standing in the fields, so we had to clear them before planting wheat.

Maybe it's the leap month this year? Although the autumnal equinox solar term has come, many crops are not mature at all. In recent days, peanuts have been pulled out, and the beans in the field are still green. If you want to harvest, it is estimated that you have to wait for another solar term, and many crops will mature in ten and a half days.

The phrase "at the beginning of the Millennium" is very correct. During the Millennium solar term, no farmers planted wheat, and the weather was still hot at this time. After wheat is planted, it will germinate and grow early. When the soil is frozen, it is estimated that the elders of the wheat seedlings are too high, which will lead to the wheat seedlings growing too vigorously. In the next spring, the roots of the wheat seedlings will turn yellow, or various wheat diseases will occur.

Moreover, now that the wheat seeds have been replaced, there is no need to have strict requirements on temperature as in the past. Wheat seeds can adapt to the temperature of 16- 18℃. This autumn equinox, the temperature is still above 26℃, there is no need to sow wheat so early.

As we all know, on the whole, the earth is getting warmer and warmer, especially in winter. People often say that it is warm this year, so sometimes it is winter, but the temperature is as warm as spring. Solar terms have long changed according to temperature changes, and sowing wheat is no longer an agricultural proverb.

In recent years, farmers have delayed wheat planting until the first frost for various reasons, saying that it is too late to plant wheat in the first frost, but farmers have tried. Wheat planted in the first frost can sprout before the soil freezes, and it will not delay the growth in the coming year.

The weather that cannot be seen through has long lost its previous function for agricultural proverbs. Planting wheat should be based on experience and weather changes!

I'm Simon Baifu and I'll answer this question.

This sentence still applies now.

My hometown is located at the southernmost tip of Shanxi, at the junction of Shanxi, Shaanxi and Henan provinces. The terrain is divided into three steps: the first step is a mountain with an altitude of 1000 meters; The second step is on the city wall, about 700 meters above sea level; The third step is the lowest, and the beach along the Yellow River is about 500 meters above sea level.

The agricultural proverb circulating in my hometown and countryside is similar to this one: "Planting mountains in the white dew, planting flat walls in the autumn equinox, and planting beaches in the cold dew", and planting wheat is just in these three solar terms.

There are three towns in my hometown on the mountain, one is Zhangdian, the other is Qinglan and the other is Guanbu. These three towns start sowing wheat around the Millennium every year. In the second step, there are eight or nine towns, and it is most suitable to sow wheat around the autumnal equinox every year. The wheat seedlings in Zhangdian, Qinglan and Guanbu all came out, and planting began only when they were on the wall, so there was less land and more tillering of wheat seeds. The lowest Yellow River beach along the river has little land, and only part of the three towns are located on the third step. Because the terrain is low and the ground temperature is higher than that in the second step, seedlings will flourish in early planting, so it is best to sow before and after cold dew.

There is also an agricultural proverb in my hometown: it is not cold and the ground is not frozen. As long as there are seeds, plant them. This means that as long as the weather is not too cold and the ground is not frozen, wheat can still be sown, that is to say, it can still be sown in the first frost, but there are more wheat seeds.

Although the technology is developed and the information is well-informed, this agricultural proverb is still very suitable for rural farmers in my hometown. Every year, planting wheat is based on the solar terms.

Agricultural proverbs are proverbs about agricultural production and a summary of the long-term life and production practice of working people in China. The ancients created the "twenty-four solar terms" to guide agricultural production. There are also many proverbs around these 24 solar terms to arrange agricultural activities according to the schedule, such as "the white dew is early, the cold dew is late, and the autumn equinox is the time to plant wheat". However, China has a vast territory, and the situation in different places in the same season is very different. Therefore, local agricultural production should not be guided by regional agricultural proverbs, but should be arranged reasonably according to local actual conditions, supplemented by agricultural proverbs. First, temperature is the main factor that determines the sowing date of winter wheat. The agricultural proverb "White dew is early, cold dew is late, and wheat is planted in autumn equinox" is also based on temperature. White dew (September 7-8), autumnal equinox (September 22-24) and cold dew (June 65438+1October 7-9) are separated by half a month, and the temperature gradually decreases.

As we all know, the temperature in the past winter was much lower than now. Especially in recent years, with the climate warming, these ancient agricultural proverbs have to keep pace with the times and can't stick to the rules.

The second is the change of wheat varieties. We don't know what kind of wheat was sown in the past. At present, there are winter wheat varieties (suitable temperature is16–18℃) and semi-winter wheat varieties (suitable temperature is14–16℃). Due to the different temperatures required, the sowing date is early or late.

Generally speaking, when the average temperature of the day is14–18℃, it is the best sowing date for winter wheat.

I wonder when is the suitable sowing date for winter wheat in your place? As far as Anqiu, Weifang, Shandong Province is concerned, the suitable sowing date of wheat is 65438+ 10 from October 3rd to 65438+ 10. However, this time period is around the cold dew solar terms, but it is not like the agricultural proverb that "cold dew is too late". We have an agricultural proverb here called "Don't use manure on cold dew wheat", which also means that it is not too late to plant cold dew wheat.

Second, I actually have a piece of land, which is a typical waterlogged depression. In our words here, "it is the land of waterlogged frogs." One autumn, it rained continuously, and the corn in the field even rotted. Other people's wheat was "small" and my land was still rotating. I finally waited until it was almost ready, and it was several days before the first frost solar terms. Shall we sow wheat?

An old man said to me, "just sow, plant more seeds and apply more fertilizer." Why is there such a thing as "working hard"? Listen to the old man. Play it. Don't tell me. It's okay. Although the output is lower than others, it is not much different, and the yield per mu is more than 800 kilograms.

I have a friend whose land is planted with ginger, but the stinking ginger that year is almost worthless, and 25 cents a catty is not enough to pay for ginger. When he finally finished producing ginger, it was almost 10 days after the first frost. He planted wheat without using seed fertilizer, but the yield was good later. Because the ginger field is full of fat and water.

There are many examples to prove that the agricultural proverb "early dew and late cold dew, autumn equinox just planting wheat" is no longer suitable for today's wheat sowing. In my opinion, it should be "the autumnal equinox is early, the first frost is late, and the cold dew is sowing wheat at that time", which is roughly the case, and the next solar term is just behind.

There is also a peasant proverb that says, "You can't plant wheat in the first frost, and you can't bear wheat after the first frost." . It means that after the first first frost solar term, the weather will be hard to feel. Maybe one day, cold air will come, the ground temperature will drop, the wheat will not germinate, and there is even the possibility of rotten seeds. Even if the seedlings can be unearthed, they will suffer because they are thin and can't stand the frost, and they will wither without harvest and burden.

Therefore, it is best to sow winter wheat before the first frost. However, due to various reasons, wheat was sown late, so we can make up for the shortage caused by late sowing by increasing chemical fertilizer, selecting semi-winter, spring-biased or spring-oriented improved varieties, increasing sowing quantity and scientific management. This is the so-called four supplements and one liter method.

Well, that's all about the sowing date of winter wheat. Anyway, I don't think the agricultural proverb "early dew and late cold dew, planting wheat at the autumnal equinox is just the right time" is appropriate here. Today is the autumnal equinox, but the corn cobs here are even green. It takes 10 days to harvest corn, which is similar to sowing wheat in cold dew. As for my "waterlogged frog" land, because there is too much rain this year, corn is gone, and wheat may be planted around the first frost. Rural proverbs can be said to be varied. These old sayings are a summary of the life experience of the older generation and also reflect the traditional wisdom of the older generation. Therefore, the sentence "Dew is early, cold dew is late, and wheat is planted at the autumnal equinox" mentioned in today's question is actually not in line with the current phenomenon.

Presumably, we all know that when there was no weather forecast before, or when people didn't have the equipment to watch the weather forecast, they would summarize the changes of natural meteorology according to the annual weather changes, so this old saying in the question is a proverb about weather changes.

But now people's scientific and technological life is more and more developed, and everyone can check the weather changes in the past month at any time through the internet, so at the same time, everyone can choose the right time to sow according to the weather changes.

It's the end of September. At this time, it is time to harvest corn in the field. After the corn is harvested, the next thing to do is to plant wheat. Therefore, wheat planting is generally carried out at the beginning of 10 or the middle of 10 at the latest. According to this time.

The white dew happened in September, and the so-called cold dew also happened in this period, which means that the weather is unpredictable now and some changes may occur at any time, so there is something wrong with this old saying now. In short, it should be decided according to the weather change.

After all, planting now pays attention to scientific planting and management. Only in this way can the sown crops have higher yield. Therefore, when we study rural proverbs, we must correctly interpret them according to our present life.

The autumnal equinox is in the middle of the whole autumn, and the arrival of the autumnal equinox indicates that half an autumn has passed. On the day of the autumnal equinox, the sun reaches the longitude 180 degrees, and shines directly on the equator of the earth, thus making the time between day and night equal. After the autumnal equinox, the direct point of the sun began to enter the southern hemisphere from the equator, and the northern hemisphere began to enter short days and long nights. The climate after the autumnal equinox is characterized by more obvious temperature difference between day and night, and the temperature drops day by day.

The Millennium this year is on September 7th, the autumnal equinox is on September 22nd, and the cold dew is on June 8th. 10.

"The white dew is early, the cold dew is late, and the autumn equinox is the time to plant wheat." The suitable sowing time of winter wheat was defined, but in most areas this year, winter wheat sowing began in the first half of 10, and the sowing time of winter wheat was regional.

Or in the past, wheat was planted at the autumnal equinox in most areas, but now the global climate is warming, and the climate zone in China's northern hemisphere moves northward. At present, the sowing date of winter wheat in most parts of the north has become a good time to plant wheat in cold dew, while in the south, the first frost is pushed back and forth, and only the particularly cold places choose the autumn equinox to plant it.

So this sentence will not be inapplicable now, which varies from region to region. But for most areas, "the autumn equinox is early, the first frost is late, and the cold dew is planting wheat at the right time" is more appropriate.

This agricultural proverb is wrong: it should be that the white dew is early, the cold dew is late, and the first frost is the right time to plant wheat!

This agricultural proverb is still valid! This is the conclusion that farmers have grown wheat for hundreds of years. It depends on climate, wheat temperature and surface temperature. If planted too early, wheat will germinate, but it is easy to flourish before winter, which will frostbite wheat seedlings and affect the normal growth of wheat after the New Year. If plants are planted too late and the surface temperature is too low, it will affect the normal rooting and germination of wheat. At the same time, it will also affect the growth period of wheat and greatly affect the yield of wheat!

Chi Hanlu planted wheat when he first visited first frost in the early autumn equinox.