After coming out of the palace, Li Yuanjing forgot about his marriage and directly found Du He who was squatting in the field.

Du Ruhui was buried in Zhaoling, even if he wanted to guard filial piety, it was impossible for him to build a small house in Zhaoling, so he built a simple tent not far from Zhaoling to live in, and at the same time to study the problems that had plagued him for a long time.

Of course, Duhe is not the only one who lives here, there are also dozens of technicians who have been pulled from the compost by Duhe.

It's just that these technicians seem to be a little unworthy of this title, the so-called technology, in fact, is just to fumble around, think of a come out of a play, constantly experiment according to new ideas, and then record comparisons.

"This doesn't work, the most basic principles don't work!" After checking the experimental records of Du He and others during this time, and seeing that Du He even buried the ore directly in the ground, Li Yuanjing directly shook his head and denied this practice.

Proper representatives of civil science, but it's no wonder that they can't be found in the research of compound fertilizers, or they can be refined by knowing that the raw material is saltpeter.

The real fertilizer production research has extremely strict requirements, first, they will get the test results of the local soil through the local government, and then adjust the formula ratio of fertilizer raw materials according to the results, and even add some local special raw materials.

Through the monitoring of scientific means, reasonable adjustment and supplementation of the elements lacking in the soil can ensure that the land always maintains a certain fertility.

Only the improvement of agricultural technology can free more people's hands, and these people can do more things, there are so many people, all of them go to farming, so what about other industries?

Li Yuanjing still cares about these things, but now he doesn't have those professional equipment, he doesn't know anything about the elemental composition of the soil, and he doesn't even know the formula of the raw materials.

Therefore, Duhe, which has been studying chemical fertilizers for more than a year, has used almost 200 acres in the experimental field, and each acre of land uses a different formula ratio and even different raw materials, but the results are somewhat unsatisfactory.

"All the methods that can be thought of have been tried, large and small mixed blocks, single powder mixed powder, mixed powder with water, even powder caused by particles, all kinds of mixed powder, these are either sprinkled down what kind of dug out or what, or they can't find it, and they can't see the effect, or the effect is very small, compared to the increase in production, it is obviously not worth spending so much effort to do this." Du He's expression was a little sluggish.

Now he has gradually come out of the shadow of Du Ruhui's death, but when facing the fertilizer, he is confused.

More than a dozen people got together, they thought of all the ways they could think of, used all the means they could use, spent a lot of money, and wasted a lot of land, but the effect just couldn't be seen.

Li Yuanjing frowned slightly, he realized that he might have thought about the problem a little simply, for example, he knew that if an airplane wants to go to the sky, it must have wings to provide lift, and the engine to provide power is a principle that everyone knows, but if you know it, even if you give yourself the engine, you still can't build an airplane that can fly into the sky.

And chemical fertilizers are the same, Li Yuanjing suddenly realized a question, isn't the answer already there?

Fertilizer fertilizer, these two words tell yourself the answer, its full name is chemical fertilizer, the most important thing is the word chemistry.

Li Yuanjing suddenly had the idea of going back in time and beating up his chemistry teacher, saying that why didn't you force me to memorize the element table back then? If you don't get a score in the gross chemistry exam, can't you call your parents to get me every day?

Now it's okay, they all say that they can learn mathematics, physics and chemistry well, and they are not afraid to go all over the world, what about themselves? Mathematics, physics and chemistry only know some things that most people know, science and science are not good, liberal arts and liberal arts are not good, and the most terrible thing is that I have crossed by myself, where can I talk about reason?

"This king probably knows the reason!" Li Yuanjing said a little speechlessly.

It's not that I'm speechless to Du He and others, but I'm speechless because I can't help myself.

Although I can point out the problem, at most I can help them point out the direction, and how to solve the chemical problem is not up to me.

"Those experiments that have an effect can be continued, and the results are not ideal, most likely because there are some problems in the production process, which eventually leads to the loss of some necessary things?" The more Li Yuanjing said, the more he felt a headache, and he didn't understand some elements, and the most important thing was that he didn't understand it very well, so after thinking about it, it was better to decide to give an example.

Anyway, if you don't understand it, you can guess......

"Maybe when you make the steamed cakes, you get everything right, but you forget to put it in the pot to steam, or you don't steam it? That's what it means anyway, so let's experiment with other methods and see if you can find something new! ”

Put it in a pot and steam it? Do fertilizer like cooking?

How did Du He hear it and think it was not reliable, did he still have to cook a pot of rice for the ground? So why don't you just cook and eat it?

But now their research has fallen into a bottleneck, and Du He has no other good way than to give it a try, so he has to nod and say, "I'll give it a try next!" ”

Li Yuanjing left the field in a not very high mood, originally planning to come over and pretend to be forced to solve the problem with great might.

As a result, they didn't expect that they could think of it, Du He and they had almost done it, and the rest of what they could think of was just what they could think of, so in the end, they could only leave Du He in a half-earthy direction.

Of course, this incident once again sounded a wake-up call to Li Yuanjing, the development is gradual, the outbreak of one discipline must be supported by other disciplines, and only by linking several disciplines together can it be possible to produce a real chemical reaction.

The practice of a hammer in the east and a stick in the west like now, is not without a probability of success, but it is too low.

But this problem is unsolvable for himself, and yesterday he mentioned the talent training plan again, but Li Shimin has deep concerns and is a little reluctant.

Even the above does not support it, how to cultivate these talents below?

Therefore, Li Yuanjing decided to continue the Buddhist lineage, get married peacefully, and then go to sea to find the island after the fleet is built, and strive to go to his own feudal country within five years, and then start to retire......