Xiao Yifei finished the affairs of the magic capital and returned to his hometown in Anhui.

As the saying goes, the mother of the child is worried, and as soon as he got home, Xiao Yifei enjoyed a burst of nagging.

"Xiaofei, how did you get thinner, sit down, old man, help me look at the pot, I'll go buy some vegetables and see how thin Xiaofei is."

Xiao Yifei almost fell to the ground.

"Mom. I've grown taller, okay, where have I lost weight? I'm more than 20 pounds heavier than before. ”

It's a pity that his mother ignored him and ran out to buy vegetables.

The black nose is a guy with no conscience, and he actually yelled at Xiao Yifei at first, so he fed it for a few months, but he has only been out for a month, and he doesn't know him. Fortunately, it came up and smelled it, and remembered Xiao Yifei, so it was honest.

Xiao Yifei reached out and touched the black nose, and the black nose lay down and held Xiao Yifei's hand with two paws, biting his fingers to play.

Dad slowly came out of the kitchen and looked at the black-nosed complaint playing with Xiao Yifei:

"This guy, you just left for two days, and you didn't want to eat, but it took a few days to get better."

After spending a day with his parents at home, seeing that his parents were busy with the decoration of the two suites, Xiao Yifei took the initiative to go back to the countryside. This is where he has the opportunity to organize his space.

The first thing is to get the excavator out to charge, the small excavator is blocked by the fence, and there is no machine in the yard at all outside.

When digging the roots of a tree, Xiao Yifei suddenly had a big brain, the thin film in the space was glowing, and this light can provide plants for photosynthesis, can it also be used for solar power generation?

Just do it when you think of it, Xiao Yifei dug out a solar charging calculator and found that there was actually a door, which was really good. With solar power supply, the excavator no longer needs to go outside to charge, and the electric inverter emitted by the solar energy can also drive electrical appliances, can also drive the pump, after getting the drip irrigation equipment, you don't have to do it yourself to water the grapes, as long as you close the electric switch.

So he found someone to design a set of solar chargers, and now in the open space where the car is placed, on several rows of simple steel shelves, hundreds of solar panels send electricity to the battery continuously, and the rows of batteries, plus a huge inverter device, become the power source in the space.

The battery system of the excavator was also dismantled by him, and now he no longer charges, and every time the battery is empty, he directly brings two charged batteries to reinstall them, and he can continue to work again.

After a few days of operation, he slowly mastered how to set up the program action, each time he only needs to drive the excavator in front of the thick root system of the vine, start his custom digging action, and the intelligent small digging will dig a big hole around the vine, and then he only needs to use a cable to connect the vine with the hydraulic arm and tear off the grape root.

Xiao Yifei looked at the corner of the cleared field, and there were large and small pits everywhere. This is definitely not possible, it must be leveled, and it must be deeply cultivated and flattened before it can be put into use. It can be deeply cultivated either with animal power or with machinery. If you use animal power, you have to get a cow in, and Xiao Yifei can't use cattle to plow the land at all, and it is not tall, it seems that you can only consider mechanical ploughing.

With the improvement of economic conditions and the increasing degree of mechanization in the countryside, Xiao Yifei found an excuse to go to the fourth uncle's house to have a look, and then went to the village to turn a few houses, and found that all of them were driven by diesel tractors.

The first time Xiao Yifei bought an electric excavator was purely unintentionally bumped into it, and he deliberately went to check the diesel engine after getting his hands on it, and the result surprised him after checking it.

In the general understanding, diesel engines should be cleaner than gasoline engines, but in fact, there are things in the exhaust of gasoline engines, such as carbon monoxide, nitrogen oxides, etc., it is not lacking. In 2012, diesel exhaust was mentioned in the second group of the list of human carcinogens, along with arsenic, tobacco, X-rays and other well-known harmful substances.

After carefully searching for information, he knew that the reason why people think that diesel engines are clean is because many technical measures are now used to suppress and clean the combustion products of diesel engines. But everyone knows the tractor, just a diesel engine, and then the smoke exhaust pipe, often see them running abruptly with thick black smoke, and there is no cleaning equipment installed at all, so it must emit exhaust gas much more than car exhaust.

The Osiris space looks quite large, with more than 5 acres of fields, but in fact it is a hemispherical shape with a radius of 50 meters, so the internal volume is about 250,000 cubic meters, and there are not many plants in it, so it is impossible to consume and dilute those harmful substances like the outside world.

Moreover, even if some of the trees, grasses, and crops are consumed, they cannot absorb the most particulate matter in the tractor exhaust. This particulate matter is the main component of the black smoke emitted by the tractor, and it is not something that the plants inside the space can handle. Large particles will be deposited slowly, and small particulate matter, that is, those Pm10, PM2.5, etc., will be suspended in the air for a long time, which has serious health hazards.

Because of this, Xiao Yifei deliberately installed solar power generation equipment and inverter equipment, and planned to use electric machinery as much as possible in the space in the future. Now if you use a tractor, isn't it the same as it will pollute? Although one or two times are not very harmful, even after plowing the land, what about sowing? And what about the harvest? What about ploughing the land next season? It definitely won't work in the long run.

Excavators are electric, forklifts are electric, why doesn't anyone get electric tractors? But the land is not ploughed, and it is level, and it is useless. Xiao Yifei plans to go to the town to have a look, but if it really doesn't work, he may still have to buy a tractor to deal with this matter first.

Xiao Yifei came to the place where agricultural machinery was sold in the town, and there were some pumps, seeders, plowshares, etc., in the small store, and there were no tractors. Xiao Yifei didn't notice that the proprietress in her 40s stared at him for a long time:

"Are you Xiao University over there in Xiucaiwu?"

Dizzy, why such a weird name.

"I'm Xiao Yifei."

"Oh, you've grown so big in a blink of an eye, when you were in elementary school, you ran around the town every day."

Xiao Yifei was very embarrassed, he wanted to say to the boss, can we not mention the past? She continued:

"Didn't you say you went abroad?"

"I went to Europe once, and I want to go to the United States next month."

"Oh, that's amazing, it's a college student."

Xiao Yifei hurriedly interrupted her:

"Why didn't I see a tractor?"

"What do you see the tractor doing? Aren't you going abroad? ”

"I'll take a look at my neighbors."

"The tractor is too big, in the back yard."

Xiao Yifei came to the backyard and saw that there were four very small walk-behind tractors in the yard, four slightly larger ones, and two larger ones. Xiao Yifei will definitely not consider small ones, although they emit pollutants more than large ones, but they must work longer, which is not efficient, and the total emissions may be more.

After looking around the tractor a few times, Xiao Yifei sighed:

"If only there were electric ones."

The proprietress snorted and laughed:

"How can a tractor be electric, you should be an electric three-wheeler."

Xiao Yifei said casually:

"How is it impossible, now excavators are electric."

"Excavator, it's impossible."

Xiao Yifei took out his mobile phone and showed her a few photos he took at the Paris Machinery Exhibition, and also showed a video of smart digging and dancing.

The proprietress was amazed:

"You said these people are so good that they can stuff an electric motor into an excavator."

Her words woke up Xiao Yifei. That's right, isn't the electric excavator just taking out the diesel engine and stuffing the motor in, and the tractor can do the same. It's not available on the market, but you can make it yourself. Isn't it just a matter of replacing a diesel engine with a battery and an electric motor, and of course, you may also need to consider the transmission.

Xiao Yifei did not hesitate to buy a large tractor, and bought some supporting machine ploughs, graders, and seeders. I went to the merchant who sold electric tricycles in the town and bought an electric tricycle with the largest power and battery capacity, which was claimed to be able to pull one and a half tons. Thankfully, the two bosses agreed to help him drive home so he could get the pile back.

That night, the pile of machinery entered the space, filling the marble plaza. After carefully studying these two machines, Xiao Yifei determined that his idea was feasible, but he didn't know if the finally modified electric tractor could pull machinery such as motor plows.

However, you can experiment to see if you can pull the motor plough with an electric tricycle. It's just that there is no fixture like a tractor behind the tricycle, so it can't be tested now.

The next day, he drove a car and bought a bunch of electric welding machines, cutting machines, profiles. When I got home, I started tossing and turning, and after a while, I welded a fixture to the back of the tricycle. Unfortunately, the results of the test were very unsatisfactory, and there was a problem with the fixing of the machine plough and the three wheels. It is also easy to lift the rear wheels of the tricycle when it is tightly fixed, and the tricycle is driven by the rear wheels, and once it is lifted, it simply cannot move.

Xiao Yifei scratched his head, what is this thing. After thinking about it, he saw the excavator's excavator arm, so he thought about it.

Soon, a fixture was welded to the back of the excavator's butt, and then the entire console was turned to the rear, and the bucket was pressed against the plow, giving it no chance to get out of the way. The excavator dragged the plough in the field and crawled forward slowly, although the speed was slow, but it was able to plough the land normally.

However, when the ploughing reached the end and needed to turn, the excavator was not a tractor after all, and it could not use hydraulics to lift the plowshare, so it could not turn at all.

Soon Xiao Yifei thought of a way, with a cable to hang the machine plough on the digging arm, and when it is necessary to lift the plowshare, the hydraulic arm is lifted, the plow is hoisted, when you want to plough the land, the hydraulic arm is pressed down, and you can plough the land again, and with the force of the hydraulic arm pressure, you can also control the depth of the ploughland, which is too convenient.

This excavator with a plough can be considered ploughing for the time being, but what about the future sowing? And what about the harvest? It seems that after all, it will be necessary to find a way to change the tractor to electric. But that's for the future, so let's deal with it now.

The land had a way to be handled, and the next two long trees in the corners fell into his eyes again.

Cutting trees usually uses an axe, but that is a technical job, and it is also an individual work, and Xiao Yifei definitely does not do it. If you use a chain saw like a bald head, Xiao Yifei refuses. Fortunately, he found that the Internet said that there was a chainsaw like a chain saw, and he didn't find it after looking for a few laps in the county, so he went to Xunyang to find this thing.

Xiao Yifei held a chainsaw and entered the space with a black nose. Black Nose has a deeper memory of the space, and immediately after coming in, he began to pee everywhere and draw the territory. Anyway, the room with valuables has been closed, and Xiao Yifei let it have fun.

Plug the power supply into the inverter device, press the button, and there is a vibration in your hand, and at the same time a buzzing sound is heard. Three times five divided by two, Xiao Yifei put an oak tree to the ground, and the sound of the tree crashing to the ground scared the black nose out of the way.

Xiao Yifei then cleaned up the branches, then cut the trunk into a dozen sections 1 meter long and moved them to the marble square.

It's not that Xiao Yifei has nothing to do, but to prepare for making wine in the future. Everyone knows that wine is inseparable from oak, but it is not clear why, anyway, it is right to use oak.

In fact, the effect of oak on wine is divided into two stages, in the fermentation stage, it produces soft oak tannins, which can enhance the structure of the wine, reduce the astringency of natural grape tannins, improve the harmony and complexity of the wine, and better maintain the aroma of the wine.

At the end of the fermentation process, the oak itself contains "tannins", which can quickly mature the wine, making it more mellow and closer to amber in a short time.

And the porosity of the oak allows a certain degree of evaporation and oxidation of the wine stored in oak barrels, but not to the point of causing the wine to deteriorate. About 10% of the wine evaporates in a year, and most of it is alcohol and water, leaving behind more aromatic compounds that make the wine more delicious.

Oak barrel aged wine needs to be stored in barrels for at least 6 months, and the common time varies from 12 months, 16 months, 18 months, and 20 months, but at present, only a small number of the world's best vintage top wines will be aged in oak barrels for a maximum of about 32 months, and then there is unpleasant "oak water", so it is not credible to say that oak barrels are aged for 5 years.

Because oak barrels are so important to wine, a standard American oak barrel in the United States is worth $270, Eastern European oak is $480, and French oak is worth up to $600.

However, oak barrels are not always available. New barrels have more aromas, while old barrels gradually decrease aromas, and old oak barrels are susceptible to contamination by unfavorable microorganisms as they are used. Therefore, some wineries claim to have used oak barrels for decades, but in fact they are the same as ordinary barrels, or even worse than ordinary barrels, because these old oak barrels also need to be stored for a longer period of time due to the reduction of beneficial content, and the ethylphenol produced in them will have a negative impact on the aroma of the wine. In general, red wine should not be used for a maximum of 5-6 years.

Therefore, oak barrels are consumables for wineries, and with such a high price for consumables, people naturally think of ways to find alternatives. Nowadays, many wineries use stainless steel barrels for fermentation or ageing, with oak chips or oak flour added to them. In 2006, France approved the use of oak planks for ageing, and in 2009 passed a law on the use of oak planks during fermentation.

With so few oak trees in the space, Xiao Yifei definitely can't use them to make oak barrels, but can only make oak chips, and he wants to try whether the oak in the space can give the wine a better flavor.

Then Xiao Yifei spread a few newly bought sheets on the ground, and the black nose quickly ran to the sheets, sniffed a few times, and then began to bite the sheets with his tender teeth, shaking his head and practicing tearing.

Xiao Yifei pointed to the vineyard and shouted, "Black nose, go over." ”

Although it couldn't understand it, the black nose seemed to know that its master was angry, so it stopped and looked at Xiao Yifei. I saw that the owner was pointing to the vineyard resolutely, and the main hand was still holding a long bamboo pole. It could only loosen its mouth and walk slowly towards the vineyard. Xiao Yifei looked up at the olive tree, looking for a place to start, but he didn't notice that the black nose sneaked back, bit the edge of the sheet, and tried hard to pull the sheet into the vineyard to continue playing.

Xiao Yifei took a bamboo pole and knocked on the olive branch like a date, and the ripe olives crackled and fell. Poor Blacknose didn't know it at all, and was smashed a few times by the falling olives.

Hearing the black nose's scream, Xiao Yifei realized that the black nose behind him actually ran back again. I saw that he was whimpering and biting an olive to take revenge.

Xiao Yifei, who couldn't cry or laugh, could only drive the black nose away again and continue to beat olives with bamboo poles.

In fact, olives are not harvested in this way, high-quality olive oil is all hand-picked, that is, to avoid damaging the skin of the olives, causing the loss of olive oil, even if it is a mechanical harvesting device, it is also a mechanical holding of the trunk, using vibration to make the olive fruit out of the branches. Or there is a picking head with several vibrating bars, which are manually or mechanically lifted to the treetops, and the olive fruit is shaken off the branches by means of vibration.

Xiao Yifei's method is purely to collect dates, the famous "three poles with dates without dates", Xiao Yifei did this. To use this method for olives would be to hurt the fruit and the tree, but he could not find such a machine in the vicinity now, so he had to do it first. The harvested olives, washed and simply dried, are used to produce authentic extra virgin olive oil using the screw press they bought.

Then he added drip irrigation to the space. The whole system is not yet fully formed, but a 5-meter-high iron shelf is erected on the edge of the creek with a circular stainless steel water tower on top, and the other submersible pumps, water pipes and drip irrigation outlets are not connected. Because Xiao Yifei's inspection of vineyards in France is only superficial, many in-depth things in grape cultivation need to wait until he goes to California to buy a winery before asking how to be more scientific.

The reason why these things are prepared in China is because these things are cheap in China, and he dares to ask for a few hundred dollars for the stainless steel water tower that is a few hundred yuan in foreign labor. Not to mention hundreds of thousands of sets of solar power generation equipment.

Because some chapters are not very good to break the chapter, there will be 5K, so I will treat it as two chapters, forgive me.