She wouldn't let her father be a dead man again, nor would she let her two little nephews, little nephews, and possibly her children be in the slightest danger.

Speaking of which, firearms are owed the same, that is good iron, and now the iron-making technique of the Great Zhou Dynasty is still a little too low, not that it can't be made into firearms, but naturally it can be made, but after it is done, it is a little smaller than what she requires.

"Those won't be given to us."

He had thought of these things a long time ago, that was the foundation of the country, and it was impossible to say anything about the fundamentals to the enemy.

The Eight Ox Crossbows of the Great Zhou, the Horse Raising of the Northern Qi Dynasty, the Array Formation of Baichu, and the Iron Melting of Cangtao.

These are secrets.

These may affect the victory or defeat of the entire battlefield, so no one will use these things in exchange for Yukina, if they want to use these things, they would rather wait for another ten years.

"It's a pity."

Shen Qingci's eyes were red, as long as they had that kind of iron-melting technique, they could create a powerful firearm, the blueprint of the firearm was in her mind, as for how she got it, it was actually the same as the eight or nine crossbows, it was she who worked hard to find it in her previous life, of course, the so-called firearms must have a gunpowder ratio.

The gunpowder of a firearm is very difficult to match, and if one is not done well, it may injure itself, so it is necessary to have a precise formula.

Shen Qing's resignation can completely use his own bloodline to prepare absolute gunpowder, not to mention anything else, these will definitely be able to protect the Great Zhou Dynasty, so as not to make the Great Zhou Dynasty as stormy as in the previous life, and not to mention their descendants, with their own flesh and blood to protect this floating country.

If the country is not a country, how can it be home?

If it doesn't work, she still has to find some way to get Cangtao's iron melting technique back.

What kind of silk making, mulberry picking, it really doesn't have much use to come.

But even so, Emperor Wenyuan was also very satisfied with the things brought by the Three Kingdoms this time, after all, these were not available in the Great Zhou, and they were all quite sincere.

For Da Zhou, it was just a few seeds, but it could get so many good things for Da Zhou, how could he not be satisfied?

This is all equal to empty gloves white wolf, especially papermaking, which is enough to solve the problem of paper use in the entire Great Zhou, and refined salt can also be used for people's livelihood.

As soon as Emperor Wen Yuan gave an order, he agreed.

Changed.

It's all changed.

As for how these people want to learn the snow cabbage technique, how Si Nong teaches others, how to teach them.

He has taught hundreds of people, let alone so many people? No matter how stupid you are, you can always learn if you give enough time, right?

The Three Kingdoms are naturally very concerned about Xuecai, after all, this is what they have exchanged for huge wealth, whether it is paper, salt, or silk, it can be said to be valuable.

It's not real money for silver, it's for what?

They all brought five or six people with them, and they were afraid that they would not be able to learn.

In fact, they really thought that Xuecai was too difficult, if it was really difficult, then it would not be possible to hand it over to them so easily, and it would be impossible for it to be planted in the entire Great Zhou territory in the past two years.

Anyway, their tuition has been paid, and they can learn as long as they want, and they will come to farm horizontally, but for Sinong, they still can't ask for it.

Si Nong was very generous, and divided a large piece of land for one of them, and also asked them to plant, from the bottom to the seedlings, all by themselves, it turned out that there was nothing difficult, it was nothing more than a general method.

Si Nong has been in this kind of snow vegetables for a long time, and they used to serve these snow vegetables very carefully, but later, they found that this kind of vegetables are very easy to feed, as long as they are watered, they will grow wildly, if it rains, even the water does not need to be handed over, and there is no need to move the seedlings again.

The snow cabbage that grows like that will not grow too big, and transplanting the seedlings is the most correct choice for the snow cabbage.

This is a contract between countries, and naturally both sides need to keep the contract, otherwise, who will want to have fellowship with them again in the future, and no one wants to do such a thing of unloading the mill and killing the donkey.

Emperor Wenyuan generously asked Sinong to take them to the snow cabbage field, let them go and learn, they can learn as long as they want, plant as long as they want, and how many seeds they harvest by themselves will also be brought back by themselves.

Don't bring back too many of the seeds you planted, and within two years, you will be able to eat fresh cabbage just like the current Great Zhou.

Two years is not a long time, after all, Da Zhou also took about two years.

The envoys of the Three Kingdoms also brought their own domestic skilled craftsmen over, just to spread skills to the Great Zhou.

In a short time, the first batch of paper was already out.

On this day, he happened to come back with a knife of paper.

He put the paper in front of Shen Qingci, "Let's see how this paper is different from the previous one?" ”

Shen Qingci took the paper, rubbed it, folded it again, and finally put it under his nose.

The smell of some fresh bamboo, the paper is much thinner than before, and it seems to be whiter.

She stood up and took out another stack of papers, which she had discarded, and on which were written those incense recipes, and she would write some of them every day, so that she had used a lot.

Of course, what she wants now is not what is written on it, but paper.

In this world, there are some things that can only be known after comparison.

If she looked at it alone, she felt that the paper of Da Zhou was not too bad before, but compared with the knife she was holding now, the advantages and disadvantages were already out, and it was obvious that she could distinguish it with the naked eye.

Two kinds of paper put together, one yellow and one white, very obvious, one thick and one thin, are also visible to the naked eye.

Although she didn't know how to make paper, she also knew that if the paper was thinner, it would be lighter, thinner, and easier to preserve for future books.

In particular, this bamboo aroma is so refreshing that it is a little refreshing.

This is the paper-making technique of the Northern Qi Dynasty, and the brand Heng is also turning over the paper in his hand, and people who love books naturally have an inexplicable love and closeness to paper.

The paper-making technology of our Great Zhou is the most backward among several countries, and the best of the Northern Qi Dynasty, the paper made by the Northern Qi is as light and thin as silk, but they will definitely not take it out, but only pass on our basic paper-making technology.

"It's really stingy," thinking is really thoughtful, people say that if they teach the apprentice, they may starve to death of the master, so they naturally don't know how to teach, and in the past.

If they wanted to find better paper, they could only use silver to buy things from Northern Qi.