Play and play, make trouble, Liu Che is not an emperor who only knows how to fight but does not know the grains.

"Grain husking is difficult not to mention, but also time-consuming and laborious, a peasant woman needs to spend half a day on hulling to be able to meet the needs of a family for a day, although the wheat tastes good, plasticity is stronger, but the shell is hard, if it is not clean, it is not as good as corn, and the yield of this wheat is also very average!" Liu Che shook his head angrily.

Is it true that the ancestors are all fools?

When choosing the type of food, they look not only at the taste, but also at the yield.

The taste of wheat is not good, it is not easy to digest, and there is no advantage in yield.

Now Liu Ponu has made some improvements, so that the taste of wheat has changed, but so what?

Who would assign a person to be responsible for shelling for this change in taste?

Women aren't in the labor force, are they?

"Wheat hulling does not need too much manpower to do, you can use water to drive the stone mill, and you don't need to grind noodles every day, a household can grind 100 catties at a time, enough for a family to eat for a month, and the time to grind 100 catties of noodles can't even be used for half a day."

"As for the yield, this is a matter of opinion, if you talk about the yield of a season, it may not be as good as corn and other crops at the beginning, but this is why I chose winter wheat, and the planting time is staggered, so that there will be a gap of about four to five months in between, and this gap time can be used to make up for the lack of yield with more weight on other crops." Liu Ponu smiled and explained with a determined face.

"Two seasons a year?" Liu Che was stunned for a moment, and then said: "It's feasible, but do you think ordinary people can have as much money as you?" Do you think they can scrape together that much fertilizer? The fertility of the land is insufficient, so what can you do if you grow three crops a year? In the end, isn't it still a waste of seeds? ”

"So you have to start with crops, broaden your horizons, and you're also an emperor, and you're so amateurish, and you're not afraid of other people's jokes when you say it......" Liu Ponu glanced at his lips and said with a look of disgust and disdain.

"I'll see who dares to ......" Liu Che suddenly glared at Liu Ponu fiercely.

He knew that this kid must have a way, otherwise he wouldn't have done it directly.

But this kid still refuses to change his urine at all, if you know it, you just say it, why do you have to make me look confused?

What's the matter?

Do you have to let me cooperate and lose some face?

This is Liu Ponu, don't you believe you will try someone else?

Let's see if Liu Che will kick him into the northern grasslands or the southern rainforests?

Liu Ponu seemed to have been prepared, took out a piece of paper from his arms and handed it to Liu Che, and then looked up into the distance with a pretended to be forced, as if all this in front of him was not done by himself at all.

Liu Che took the paper with a confused face, and when he opened it, he saw that there were only several different crop names written on it, and then the years and yields were marked on the back.

Liu Che quickly found patterns and meanings on the paper from these changing data.

If a piece of cultivated land is cultivated continuously, its annual yield will be reduced, even if fertilizer measures are taken, if fertilizer measures are taken every year, at most it is to delay the fallow time, and it can be more than a year.

Basically, in three or four years, the yield per mu will drop by one-third, and at this time it is necessary to fallow, otherwise the harvest is likely to not even be able to recover the seeds.

Prior to this, the average yield per mu in the Han Dynasty was one and a half stones.

That's right, it's one and a half stones, don't think that one stone is more than a hundred catties, if you can really have this output, Liu Che will wake up laughing in a dream.

A stone in the Han Dynasty was only about 27 catties, which was a city catty but not a kilogram, that is, the average yield of an acre of land was only about 40 catties.

At first, Liu Ponu was also very skeptical, he doubted how the ancestors played, squatting in the field every day, how could an acre of land only grow about forty catties of grain?

This special mother is very unscientific, in the future generations, even if a layman who doesn't know anything goes to farm, it is impossible to have only forty catties of grain per acre.

It wasn't until later that Liu Ponu knew that he had misunderstood the ancestors, not that the ancestors didn't know how to farm, nor that the ancestors didn't do their jobs, but that he was biased.

For example, how big was an acre of land in the Han Dynasty?

Although the Han Dynasty used both large and small mu, most places used small mu, and it was not until the late period of Emperor Wu of the Han Dynasty that it was gradually transformed into large mu.

That is, the width is one step, the length is one hundred steps, six feet is one step, and one foot is about 23 centimeters, so let's go for it......

The acre is two hundred and forty steps.

After calculation, basically the current three and a half acres can be about the same size as one acre in later generations.

Therefore, if it is calculated according to the measurement of later generations, the yield of one mu of land is almost one hundred and forty catties, that is, about five stones.

Since Liu Ponu built the water conservancy system, the growing environment of crops has become better, so the yield has also increased a lot.

In the past, the standard of distinguishing between upper, middle and lower fields is no longer very tried, and almost by virtue of this set of water conservancy system, more than seventy or eighty percent of the cultivated land of the Han Dynasty has been turned into upper fields.

Although it failed to double the yield, the lower limit has increased a lot, and the yield increase of almost every mu is more than half a stone.

"Huh?" Liu Che suddenly found a mistake on the paper, and immediately pointed out: "The yield of Shu is wrong, right?" ”

"That's right!" Liu Ponu didn't look at it and quickly replied.

"How can this be right? The yield of other crops will drop every year after continuous cultivation, so the empty space should be fallow, right? Why has it been cultivated for five consecutive years without any significant change in yield? Liu Che looked at Liu Ponu with a more serious face.

"How do I know that? The data is I asked the local Taishou to find it from the local, although there is an error, but the error should not be large, because the environment is different, so the actual output is also different, I removed the highest production of a few places, the rest of the average value is calculated, although this set of data may not be accurate, but as a reference is still no problem. Liu Ponu spread his hands, and when he was undecided, he pushed it to the Taishou below.

Anyway, Liu Ponu really ordered them to go down to investigate and report the real situation, as for whether they really went down.

Liu Ponu thinks that it is probably really going down, after all, he is too guarded, and there are still a lot of dogs around him, and they don't need to go to the ground to collect data in person, they only need to send someone to notify the county magistrates, and the county magistrates already have all the detailed data in their hands, and they only need to let the townships count the few data that he has not counted.

Although this matter seems troublesome, in fact, it is just like that, and the imperial court is just making statistics, and everyone knows Liu Ponu's style, if he does a good job, maybe he will go directly to the heavens, so no one is willing to fake in this matter.

"I also inquired about this, and then I thought about it a lot, you said that this plant ash can increase the fertility of the land, although the effect is minimal, but he does increase, and the manure can also increase the fertility of the land, and the effect is significant. Before, I also asked people to leave some straw in the ground and bury it underneath, and there doesn't seem to be much difference in a single look, but after comparing it with the surroundings, I found that there are still some differences, although the increased output is only about four or five catties, but that is also an increase in production, isn't it? ”

"And according to the farming habits of the people who grow the mushroom, most people choose to cut it off from the roots, take it away from the top, and keep it at the bottom, so I wonder if the roots of the mushroom are conducive to increasing the fertility of the land?"

"Of course, these are just speculations now, whether it will work or not, I will know when I plant it for a year!" Liu Ponu pretended to be forced with a mysterious face.

Looking at Liu Ponu's posture, Liu Che gradually fell into contemplation.

He is actually no stranger to this thing, and it has a long history of cultivation in China, but it is really hard to eat.

In the past, when Ma Zheng was promoted, the people had to use part of the cultivated land to cultivate soybeans.

Horses can be grazed on the grassland, but what can be raised for horses in the mainland?

And how much grass is there to meet the needs of these war horses? So the people at that time had to grow mushrooms and use them to feed their horses.

Later, after the abolition of the horse administration, the people gradually reduced the scale of soybean cultivation, for no other reason, this thing is really not delicious.

Although as early as the Warring States Period, soybean and millet became a parallel staple food, but the people have a little choice, they will not eat mushroom, the way to eat is too simple, can only be boiled and eaten, and must be cooked long enough, otherwise it will not be able to bite in the mouth at all.

However, there are some foodies who have made a lot of inventions during this time, such as Liu An, the king of Huainan, who was so idle that he had nothing to do, he used soybean to make tofu during this period, and soy sauce and so on also appeared during this period.

Of course, Liu Che didn't know much about this, and he only knew about the output back then, and he didn't think there was any problem with Liu Ponu's statistical output, but the biggest doubt was whether he could continue to cultivate, and why did the yield not change when he continued to cultivate?

Liu Che quickly figured it out, why should he care if he could do it?

Anyway, this kid is just doing an experiment in his own land, and if he fails, the loss will only be these dozens of hectares, and it will have no effect on the big man.

But what if it succeeds?

What does that mean, need more to say?

In the past cultivation history, corn and millet can only be chosen, although the yield of soybean is higher, but if there is a choice, the people will still give preference to corn.

But now, if it can be planted at a staggered peak, even if the fertility of the land can't keep up, it doesn't matter.

All in all, Liu Ponu's failure had no effect on me.

But if Liu Ponu succeeds, it will be equivalent to directly giving me a super double.

Whoever likes to refuse such a cool thing refuses to go, anyway, I can't refuse......

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Chapter 247: Give me a super double free read.