When Changle was carrying out a series of celebrations, Yang Heng suddenly received news from his home in the countryside, saying that someone had reported good news, but he did not say what the good news was.

As soon as I heard that Yang Heng was going back to the countryside, Changle, Yuzhang, and Xiaoniang and others naturally would not stay in the city, they now like the countryside more than the city, although there is no industrial pollution in this era, but the smell in the city is still very different from the countryside, no matter how wide the streets in Chang'an City are, but the number of livestock is also a lot, and naturally there are people's excrement, which is the source of odor in the city, or domestic garbage pollution, that's it, So these girls don't like the city very much, besides, there are not too many goods to buy in this era, whether it is cosmetics or other amusement facilities, they are all so old, and they are not as many as Yang Heng's home in the countryside, so the girls are very yearning for the life in the countryside, if they are allowed to work, maybe they will not yearn for it.

So, the group returned to the countryside in a mighty way, Changle Yuzhang and Xiao Niang naturally went to find what they liked to play, while Yang Heng entered the mountain.

"Butler, there's some good news for me to come back." Yang Heng first found the housekeeper to ask, you must know that although this valley is not big, there are a lot of facilities in it, and Yang Heng doesn't want to ask from place to place.

"Back to Xiaolangjun, there are a few things in this valley that have been completed, I just haven't let people notify you, but now this one, I can't do it without notifying you." The housekeeper said excitedly.

"Oh. Something. It deserves the housekeeper that you are so happy. Yang Heng was also a little puzzled. These are some of the things he has arranged, that is, the results, that is normal, are you so happy?

"Xiao Langjun, didn't you let all kinds of stones come in, and besides, didn't you let those Dao Masters study the reaction of the soil and that turmeric, and those Dao Masters did all the soil in the valley. Even all the soil that was brought in was done and recorded, but these things were very fast, and then they had nothing to do, so they began to break the stones, and then put some stone powder into the field, and did some testing, and it was in this way that they found a kind of stone powder that could make the crops grow faster. But I don't know what the output of the road is, so I asked Xiaolangjun to come back. ”

"Are you talking about saltpeter?" "Yes. Xiao Langjun, do you already know the Dao, this is not right, I have never mentioned it to anyone, could it be that those Dao Dao can't grow? The butler was a little surprised.

"Okay, okay, don't guess, I already know the Dao, and you don't care where I learned the Dao." Where do you know that the chemical fertilizer in the previous life was made of saltpeter, so saltpeter can even be directly ground as fertilizer, but in this era, Yang Heng does not support the use of saltpeter as fertilizer, one is too wasteful, and the other is that the land will be compacted, and there is a feeling that the gains outweigh the losses.

"Butler, you tell the three Taoist elders about this, don't study the matter of making fertilizer, and don't study these saltpeters for the time being, wait for their houses to be built and then study, it's too dangerous, and they will be allowed to study it after the protective measures are done." As for fertilizer, let's first study the function of biogas residue and biogas slurry. "Yang Heng doesn't want everyone in the world to know that saltpeter can be used as fertilizer, so he will become a sinner, maybe the production will increase in a short time, but after a long time, once the land is compacted, the output of grain will be greatly reduced.

"That's right, housekeeper, you must tell the three Taoist elders about this matter, and also tell the old farmers who know the way, forget it, I'll say it myself," It's a good thing to be able to use fertilizer, but if it causes a bad impact in the future, it's better not to do this kind of good thing.

Yang Heng worked hard to stabilize these people, and they also swore that they would not say anything, and Yang Heng was also relieved.

Next, he carefully observed some changes in this valley.

First of all, Sun Daochang's medicinal materials have come out, and they are growing well, but recently Sun Daochang is not here, and he can't identify the quality of these medicinal materials, but Yang Heng seems that these medicinal materials are very lush, and it seems that they are successful, if they are not successful, they may not emerge, maybe the seedlings will be very thin after they come out, it seems that these medicinal materials are very suitable for growing in this climate, and in the future, Sun Daochang can save some time to go out to collect medicines, and study more cases.

"Xiao Langjun, don't you look at these grape seedlings, their survival rate is very high, almost half of them have taken root and sprouted, and the growth is also good, but I don't know how many years it will take to bloom and bear fruit."

This is also a good news that Yang Heng gets, once these grapes begin to bear fruit, they can make wine, and even some other wines, that is, it is possible to make some spirits with grapes, and the brewing of grain wine can be reduced, after all, the grain at this time is still used as food is the most suitable, and it can even be used as feed for pigs and poultry, which is much better than wasting wine to make wine.

The cultivation of grapes will not occupy fertile land at all, and even can be planted in the courtyard of each family, and then as long as it is purchased and returned to make wine, it is easy for the people to manage it, and this grape is also a very delicious fruit. Even dried raisins are good.

As a planting experimental base, these two things are considered to have quick results, and others, such as the configuration of improved varieties and the research of grafting, all of which take time, so Yang Heng didn't even ask, now is not the time to produce results, he has to wait for those old farmers to report by themselves, he will not put pressure on them.

"Butler, that's?" Suddenly, Yang Heng saw a black smoke rising into the sky, could it be that the chimney of the molten iron furnace had been built. "Xiao Langjun, I haven't had time to tell you yet, the big chimney has been built, and it is fixed on the mountain wall, so that the image of the iron melting furnace below can be changed at any time to study the refining of some steel, which is very convenient." "Let's go, let's see." Yang Heng also came to be interested, this chimney is actually just an idea of him, and he didn't think that this would be built successfully, but this was really successful, the wisdom of the ancient people is really amazing, Yang Heng seems to have played a role in prying the earth, or only unexpected, and there is no can't do it, Yang Heng is the role he thought of, the things he thought of, people will naturally slowly study it, and naturally Yang Heng will not give the workers some problems. It would have been impossible for him to have workers make a simple radio, but in a dozen years, it might be possible to build a radio.

A high chimney rises next to the mountain, with a height of dozens of meters, and when he got closer, Yang Heng found that this chimney was fixed on the cliff with some iron bars, and on the entire mountain, every other distance, there will be a fixed iron bar, and there is a thin hole in the mountain, and the iron bar just came out from inside, and the chimney was firmly tied to the mountain, and the part below, they actually used a mobile way to build, if a style feels inappropriate, Just push this style of furnace to the side, and then build a new furnace body, this new furnace body is also active, these ancients are really good, they actually invented the plug-and-play combination building method in advance, it seems that the time for them to make computers will come soon, at least Yang Heng may use the original computer in his lifetime.

This is a bit too far, let's take a look at the plug-and-play interface, Yang Heng found that the bottom of the chimney is a refractory material fired into one, and there are many thick iron rods inserted in it, and the bottom is supported by a few thicker iron rods, so that the furnace body below can be changed casually, Yang Heng has to admire a line in a movie in later generations to describe it, high, it is really high. (To be continued......)