Why is the old farmer pressing wheat seedlings with stone rollers in the TV series?

The first is to improve moisture and fight drought. The agricultural proverb says that "wheat is lost and the neck is drought", nine droughts in ten springs and nine droughts in Jiusan reclamation area, drought is not conducive to the growth of wheat seedlings, the implementation of pressing green seedlings makes the soil compact, makes the root system and the soil closely connected, enhances the role of soil capillaries, conducts the bottom water, is conducive to raising moisture and seedlings taking root, preventing water evaporation, and improving moisture to resist drought. According to the experiment, the water content of the top soil can increase after the wheat is pressed with green seedlings.

The second is squatting seedlings and strong stalks: after the wheat seedlings are pressed, they are subject to mechanical damage, which can temporarily inhibit the growth of the aboveground parts, promote the growth of the underground part, promote the tillering and rooting of wheat, shorten and thicken the stem nodes at the base of the stem, squat the seedlings and strengthen the stalks, and prevent lodging.

The third is to promote tillering: wheat pressing seedlings can promote tillering, is conducive to spikelet differentiation, according to the survey, the effective tillering can be increased than that of non-pressing seedlings, the effective spikelets are more than 20%, and the number of grains per spike is more.

Pressing green seedlings is an effective measure to improve moisture and prevent drought, which is simple and easy to implement, and significantly increases yield. The three-leaf stage is the most suitable for pressing the seedlings, and the seedlings should be stopped after jointing, so as not to break the stems. The green seedlings should be pressed four times and four without pressure.

That is, the ground is dry, the soil is clear, the grains are many, and the seedlings are pressed; The ground is hard, the soil is clayy, the seedlings are weak, and the wheat seedlings are not pressed by freezing. It is best to use a V-type ballast for the tool.

That is to prevent the growth of wheat in winter from being too vigorous, because if the wheat grows too vigorously in winter, it is easy to be damaged by frost when the cold wave comes, and if the winter growth is too vigorous, it is easy to cause the spring wheat to be fertilized, which is not conducive to the normal growth of wheat and will cause a certain degree of yield reduction.

This wheat milling, it's like this, it's mainly for the camera, otherwise, there won't be much drama in the field, mainly with the camera, you have to say that there was indeed wheat grinding before, it's just some fertile land, not so much good land, basically the Yellow River is saline-alkali land, so don't talk about grinding wheat, don't pick it up, it's not growing well, and you have to ??? This is a 97-year-old man in the old road of the Yellow River, and the old man said that the TV series borrowed land to grow grain, and then it was a bit fake.

My hometown is in the south of Shandong, the old man in the family has planted wheat all his life, and the family has been planting it when he was in elementary school, and he has not seen pressure, "The Old Farmer" is a bit too deliberate, I personally think that the director wants to reflect the role of the wheel, and our wheel is used to press the field, and the field is after the wheat is harvested, it is specially used to beat the place where the wheat is taken down from the wheat straw, and it is generally a field in the wheat field.

I've watched the TV you mentioned, and I've seen it in reality.

There were also doubts.

The impression is that after the emergence of winter wheat, it grows vigorously before winter, and the plant is too large to lose too much water. The plant is damaged after crushing, slowing down growth and reducing water evaporation. Only by keeping the roots well hydrated can wheat yields increase.

Not all of them have to be crushed.

Looking forward to a more scientific explanation.

I'm also looking for answers, and I'm confused.

That's because the climate was too warm a year ago, and the wheat grew too vigorously, so the wheat seedlings would be crushed, and the jointing would not be allowed before the year, and it didn't matter how the wheat was trampled before the jointing.

Although I didn't find this clip of "Old Farmer", looking at the subject's description, I think it should be a very important farm work for winter wheat: suppression!

Winter wheat is planted in the hometown every year, and it is usually suppressed after sowing, and it is suppressed before or after the emergence of seedlings. Tools, in the early years, it was a stone stone, and later it was a suppressor.

Why is winter wheat suppressed.

Winter wheat suppression is to use stones, ballasters, etc. to roll in the wheat field, which can compact the soil, crush the soil, keep warm and protect moisture, and grow strong seedlings.

Suppression can compact the soil and adjust the soil pores of the tillage layer, so that when the cold air comes, the soil has a buffering effect, which will not cool down quickly, and play a certain role in anti-freezing. At the same time, it can prevent soil moisture from evaporating too quickly to a certain extent, saving water and moisture.

Usually the suppressed wheat seedlings are relatively strong, and those who have done farm work may understand that the seedlings are better than the seedlings, and the wheat seedlings are not a good thing!

The period of repression of winter wheat.

In fact, the effect of repression in different periods of winter wheat is rarely different.

Post-sowing suppression: One of the most commonly used methods in my hometown, generally after wheat sowing, the next morning or the evening of the same day, the cow will be used to pull the suppressor in the wheat field to walk around, so that the gap between the seed and the soil is smaller, which is conducive to the emergence of wheat seedlings, and the seedlings are neat.

Generally, if the moisture is poor, this farm work is indispensable, saving water and moisture, and is conducive to the emergence of seedlings. Moreover, it also promotes the growth of wheat seedlings, and the suppression must be early, and if it is delayed for a few days, I am afraid that the wheat will emerge. Because wheat is usually sown after the National Day, when the temperature is high and the seedlings emerge quickly.