People are in the Tang Dynasty, creating a mythical dynasty

Chapter 36 Vegetable Greenhouse
A bucket of sixty guan refined salt is a sky-high price, but it was normal in the early Tang Dynasty. Now, due to the rise of the Turks, the green salt is almost completely stuck, and the output of tribute salt is extremely low. Tang's rich and noble families don't want too many.

In this case, refined salt is naturally in short supply.

Although it is only the inferior snow salt among refined salts, countless people loot it.

Especially when Li Ming fixed the quantity of refined salt sold at one hundred catties, a bucket of sixty guan is not unacceptable.

Of course, it is almost impossible to maintain this kind of price. After all, once the Turks are defeated, the production of green salt can resume. At the same time, as the Tang Dynasty gradually stabilizes, the output of refined salt in various places will gradually enter a stable state.

Although the price of refined salt will still be high, it will gradually return to a reasonable price.

It is basically impossible to think of such a high profit in the future.

Of course, even if it is completely recovered, the profit of refined salt is enough to be more than ten times.

Can last for a long time.

As long as the refined salt purification technology does not leak, it can continue to be used.

Of course, Li Ming has no interest in using this thing to make money on a large scale.

Now, he only thinks of this thing because Shaofu is short of money.

Otherwise, he might not touch it for a short time.

So after the order, he didn't bother with the salt anymore.

It was handed over to the dozens of people in the courtyard for extraction, and the Shaofu Supervisor for sale.

And he cast his sights on a new thing.

Coming to this world, if there is anything Li Ming can hardly bear, it is that there are almost no vegetables in winter, even in the palace, there are almost no vegetables that can be eaten.

And according to what the attendant said, if you want to eat vegetables, you have to wait until at least April or May next year.

There are still four or five months at least.

This is just killing.

In this case, Li Ming suddenly remembered the items he signed in a few days ago.

"Greenhouse farming technology."

That's right, it is greenhouse farming technology.

Greenhouse vegetables refer to the vegetables grown by covering plastic film on the greenhouse, which can artificially control the season of vegetables coming into market.Using greenhouses to cover plastic film to grow vegetables is to artificially create a suitable ecological environment, adjust vegetable production seasons, adjust market demand, and promote high-quality and high-yield vegetables.

In later generations, this thing is almost extremely common.

In this day and age, this stuff hardly exists.

At this time, when the Shaofu was no longer short of money, Li Ming couldn't help but came up with this idea.

On the one hand, this item allows him to taste vegetables in season, and on the other hand, it can give Shaofu another income.

Vegetables in winter, this thing will not be much cheaper than refined salt.

As for building.

That's even simpler.

This thing is not a high-tech existence, the only troublesome thing is the plastic film, but there are a lot of this thing in the previous sign-in, and now it can be used.

Therefore, after Shaofujian sold refined salt for the second time.

He just started to act.

Called a large number of craftsmen, first began to build the frame.

The frame of the greenhouse will generally be divided into bamboo and wood frame and assembled galvanized steel pipe greenhouse in the future.

Bamboo and wood greenhouses use bamboo poles and wood as arch materials.The advantage is that it is easy to obtain materials, convenient to construct, and low in cost. The disadvantage is that the arch frame has low strength, poor wind and snow resistance, and is easy to decay. It needs to be repaired and replaced every year, and the operation and management are not convenient.

The prefabricated galvanized steel pipe greenhouse uses hot-dip galvanized thin-walled steel pipes as the arch material.The advantages are high strength, strong wind and snow resistance, good anti-corrosion performance, high light transmittance, convenient operation and management, etc., and the service life is as long as 10-15 years.

Nowadays, it is basically impossible to install prefabricated galvanized steel pipe greenhouses. Although Datang produces steel, but the steel production is not enough for the army, how can it be used to build greenhouses, so the only choice is bamboo and wood frames.

on a farm.

A famous craftsman is working quickly according to the drawings.

Shaofu's mobilization ability is undoubtedly strong.

And more importantly, Shaofu has everything.

From personnel, to materials, to places are ready-made.

It was only the second day that preparations were made and the action began.

"The direction of the shed. Take the north-south direction as the main direction, and try to avoid building sheds obliquely."

"The width of the shed is one to one and a half feet, the length is ten to twenty feet, and the height is one foot."

After speaking, Li Ming directed everyone to start working, and in front of him, several greenhouse frames began to be gradually erected.

This time Li Ming built ten greenhouses in one go.

After all, there are still a lot of plastic films he signed in.

And a famous craftsman is busy in the rapid.

Although the construction of greenhouses has never appeared before, it is still easy for the top craftsmen of Shaofu in this era.

And in the middle of being busy.

Time passed in a blink of an eye.

Five days passed quickly.

Ten greenhouses in the field were also gradually established.

The sign-in plastic film was also laid directly on it.

At this moment, the greenhouse is completely constructed.

In the previous life, the mature facilities for producing vegetables in winter were still winter-warm solar greenhouses. Under the condition that the lowest temperature does not exceed minus 25 degrees, it can normally produce warm melons, fruits and solanaceous vegetables without heating. If it is low, it needs proper heating. For example, the northern part of Inner Mongolia, the northern part of Northwest China, and some places in northern Xinjiang need proper heating.If there is no heating in these places, it can only produce a batch of fast-growing leafy vegetables that are resistant to low temperature during the coldest winter.

But obviously it is impossible to have heating equipment in this era.

However, soil methods can also be used.

Less fire is enough to make the temperature of the greenhouse rise rapidly.

In addition, this is not the north or the northwest, and there is no need to heat up too much.

Add some straw, and some fire to heat up.

Then you can start planting.

It's only now the end of December.

If you plant immediately now, you can basically eat vegetables by the end of February.

Although spring has begun to bloom at the end of February, and it is even the season for planting, it is almost impossible to eat vegetables.

At this time, Li Ming's vegetables were still extremely scarce.

More importantly, of course, next winter.

At that time, his vegetables are almost equal to the existence of Wang Zha.

As long as he thinks, it is enough to use vegetables to directly fish for bigger ones.

And it is different from the salt extraction technology.

Even if the greenhouse technology is leaked, there is no way to imitate it. They don't have plastic film, and without plastic film, there is no way to ensure enough masking, and there is still enough warmth.

It can be said that this thing can continue to be used until the moment he really wants to popularize it.

Or wait for him to make plastic and glass, and then there is the possibility of imitation.

　I quarreled with my girlfriend, just finished the quarrel, there is one left, I will update it tomorrow when I wake up, sorry

　　
　
(End of this chapter)