Therefore, Li De's practice is still to cultivate uniformly, and hand over part of the potatoes to the merchants who contract the fields for planting.

When they have the results, the castle guard will pay for the purchase, and there is no limit to how much of these things will be left behind by the merchants.

Today, there are more types of vegetables, and cabbage, carrots, cucumbers, onions, and tomatoes brought back from Europe can be seen in the vegetable market in Youzhou.

The price of new vegetables is very expensive and related to the quantity supplied, after all, most of them still need to be cultivated, and the part that can be marketed is taken out by merchants for people to try.

The person in charge of agriculture in the castle guard has already begun to experiment with the cultivation of greenhouses according to Li De's request.

The main shielding material they use is gauze, and there are strict requirements for temperature control.

In fact, the greenhouse principle is not a product of modern people, and it has been in rudiments more than 2,000 years ago.

According to the "Book of Han", it is recorded that "Taiguan Garden grows winter onions, leeks, and mushrooms, covers the house, burns the fire day and night, and waits for the warmth to be born, and the believers think that this is a thing from time to time."

Although gauze is used as a shielding cloth, it is not as good as plastic cloth and has a good light transmission effect, but it can still grow winter vegetables.

Li De thought of a lot of ways to transform the greenhouse, and the effect was not obvious, so he hit the idea on the glass greenhouse.

Even in modern times, the cost of investment and construction of this kind of glass greenhouse is much higher, but there are many advantages, good light transmission, safety and long durability.

For the ancient level of development, glass plates cannot be manufactured now, so the technical difficulty is not ordinary.

Even if Li De tries his best, he needs to start from making glass plates, and the firing of engineering automation is theoretically estimated to be unlikely to be completed in a period of time, but it can still be achieved with some manual methods.

Li De came up with the idea of using plastic models to use the method of suppression.

The investment is large and time-consuming, but greenhouses do not necessarily require glass panes for all materials.

In fact, in the house, try to let in as much light as possible, just install more windows.

Anyway, it's all an experimental attitude, and it's excusable to waste some money, and the city guard is very unoptimistic about this project, which is really expensive, and I'm afraid that the cost will not be recovered in a few years.

But who told Li De to insist.

Li De's approach is not to blindly waste money, just like investing in a casino project, now that there is a demand, the blacksmith workshop will improve the technology according to the demand to achieve the goal.

After giving the goal, the craftsmen can stop fighting, and the technology of firing glass is very mature, and transparent glass products can be fired.

Now it is nothing more than asking them to change the finished appearance of the fired glass, and the requirement for craftsmen is innovation.

First of all, we can make one glass plate by ourselves, and then we can make more glass plates, learn from the experience, improve the processing technology, make production easier, and increase the output.

There is nothing that costs nothing to conduct scientific experiments without costing money.

In the past few years, Li De has been very concerned about the technological development of Youzhou, especially the technology of the blacksmith workshop has developed the fastest.

Especially after the application of steam engine, after several years of technical reserves, steam power has become a new power mode. 89 Literature Network

All kinds of steam equipment are also emerging, pumping machines, well drilling machines, cranes, tunnel crawlers and so on.

At present, only the production of glaze is the most prominent, and who started with glaze when Youzhou had no money before.

Nowadays, the glazed products are still self-made, and the sales are shipped little by little through the merchant channels, and the number of finished products fired is far more than the number of goods shipped.

The value of glaze is more expensive than gold, and if there is more of it, it will depreciate, just like many merchants engaged in kiln firing sometimes occasionally find some irregular glaze.

Originally, if you don't care, these glasses can be taken out for money, but there are too many kiln workshops in Youzhou, and over time, the firing of glass will begin to appear, and finally there are businessmen who began to ask people to test the firing of glass.

After all, it is worth firing several furnaces of masonry on a glass roof.

Merchants are very bold, and they will get more when they succeed, and the result is that they really let them fire the glass.

If there is a success, countless people are worried about it, so they ask for cooperation, and all the money to buy technology is to come out, how can people not be impressed.

Shrewd businessmen naturally accept the benefits and hand over the formula, they are not stupid, good things are too easy to covet, in Youzhou, businessmen are protected, but who knows if anyone will have bad intentions.

The castle guard will not interfere in the affairs between merchants, but after that, the price of glass products has dropped significantly.

For this reason, the glazed workshop under the name of the castle guard has suffered some losses, but it is still competitive compared to the glazed products made by the merchants who have just started.

The development of the glaze workshop is not smooth, but the money is really making a lot, Li De sees the glaze products very lightly, mainly to let them process some cups, bowls and chopsticks and other practical things.

During the New Year's holidays, these products were distributed to everyone as gifts, and over time, the requirements for the workshop were not very high.

Now it is necessary for craftsmen to master the technology of making glass plates, and I don't know how long it will take to complete.

Li De found that although the business development of Youzhou was very fast, the development of technology was still a little slow, so he decided to add more subjects to the school to let more people explore new knowledge.

In particular, theory and practice should be well combined, and those who have learned will have a good foundation in their work, and talents are needed in chemistry and industry.

He really couldn't really help much with advanced academy knowledge, but he could do it in a way that could make some good happen.

For example, he thought of putting the outstanding students in the academy together to invent after graduation.

The first work is to let them improve the existing production tools, production equipment, as long as they are practical, they can be rewarded.

Using money to drive these people to innovate, the more they invent, the more money they get, and there is no limit to their field of study.

Not only those with academic foundation can join the invention, but even workers can join the invention, provided that they have made innovations in the tools and equipment they have mastered.

Li De's method is naturally to publish newspaper publicity, Youzhou encourages invention and creation, and those who have done everything can get a good reward after passing the review.

The first person to submit an invention was none other than Li Jing, who was one of the first to buy bicycles and was rewarded for participating in the competition.

His invention was actually very simple: the bicycle was installed with a bucket, and the extra space could hold a lot of things.

As a result, this improvement directly made Li Jing get a hundred yuan.