let go of that priestess

"Really, why did I lie to you?"

Ji Cheng pointed in the direction of Damimura's fields and said, "The overproduction method we are implementing now is the two-field crop rotation model.

With bean plants, overproduction can evolve into a three-field or even four-field rotation model. The output is at least doubled, but it is only a conservative estimate. "

"..."

"Could you tell me more about it under the quilt?"

"Um......"

Chapter 189 Four Field Rotation Prospecting Preparations

Not long after the fields were reclaimed, Damu Village began to implement the crop rotation system, that is, only one field apart from each other is planted every year, and the adjacent fields are left idle for cultivation.

The field also needs cultivation, and Ji Cheng has popularized the knowledge of land nutrition to the priestesses.

Nitrogen, phosphorus, and potassium are three important elements needed for plant growth. Once consumed too much, the planted plants will deteriorate year by year, and eventually even die completely.

In addition to crop rotation, the method to change this result is fertilization.

In the past, they would sprinkle plant ash and crushed animal bones, but these two could only supplement potassium and phosphorus.

The remaining nitrogen is not enough to rely on the slow self-recovery of the land and the manure of farmed animals.

But now with wild soybeans it's different.

Beans are one of the few plants whose roots contain rhizobia, bacteria that can do things no other plant can—

Return nitrogen to the soil.

Specifically, when rhizobia parasitize plants, they form a symbiotic relationship.

Rhizobium absorbs carbon from plant photosynthesis and in return converts some of the nitrogen into ammonia that plants can use directly.

In this way, when the tribe harvested the crops, the roots containing nitrogen and rhizobia remained in the soil.

Therefore, adding wild soybeans to the two-field crop rotation model, the three-field crop rotation model was born, and the four-field crop rotation model is not far away.

After explaining for a while under the quilt, it was very late after Jiang Hongdou understood the working principle of rhizobia plants.

The specific method of three-field or four-field crop rotation will be discussed tomorrow.

The next day, Ji Cheng and Jiang Hongdou went to the Council Hall together.

Sitting in the office, Jiang Hongdou first dealt with today's affairs, while Ji Cheng drew a table diagram of the crop rotation mode, which is easier to understand.

Mita rotation map: (click to view)

Four-field rotation map: (click to view)

After a while, the form was drawn, and he showed it to Jiang Hongdou to explain.

The latter combined the knowledge learned last night, quickly understood, and then beamed with joy.

"Sure enough, doubling the output is just a conservative estimate, amazing! If the four-field crop rotation is implemented, the fields will never rest!

Moreover, this can also solve the problem of rations for the livestock that the breeding group will raise in captivity by the way, and there is no need to spend manpower collecting, and the source is stable and convenient! "

"Yes, but the benefits are more than that."

Ji Cheng pointed to the four-field crop rotation form and said:

"You see, each crop is planted three years apart, which means that pests that rely on one of these crops for food cannot survive such a long cycle and will starve to death.

That is to say, following the rodent problem, the problem of pests can also be alleviated to a greater extent. "

"So that's it!" Jiang Hongdou's eyes lit up again: "There are fewer crops to be eaten, and the yield can increase!"

"Hmm~" Ji Cheng responded with a smile, then paused and said, "The official prospecting and mining team, don't need to hold meetings to discuss it?"

"Of course, you can form it whenever you want." Jiang Hongdou nodded after recovering, thought for a while and said:

"I will ask the collection team to recognize and remember wild soybeans, and then search for transplants on a large scale, trying to transform the farming method of the village into four-field rotation in the shortest possible time.

By the way, I haven't asked you about the direction of selective breeding of wild soybeans. Well, the main reason is that I don't know how to eat them, and what characteristics should I develop? "

"This, there is no specific characteristic to be developed."

Ji Cheng shrugged: "Wild soybeans have many excellent characteristics, such as salt and alkali resistance, cold resistance, and disease resistance.

As for the selection of breeding, it is to improve the quality of soybeans, select the skin color and oil content, the pods are full, and the beans have less moisture.

The way to eat it is to fry it directly, make sauce, grind soybean milk, make tofu, squeeze soybean oil, and make soy sauce!

Uh, I can't do this in the end, the conditions are not enough, I have to cultivate Aspergillus oryzae first...

In short, I will write another specific method that can be eaten now.

In addition, in addition to edible function, the whole soybean plant after harvesting pods can be used as feed that livestock like to eat. The stem bark fiber can be used to weave sacks. The soybean oil mentioned above can also be used as high-grade feed or fertilizer.

Anyway, they are all useful, they are all useful, so don't throw them away when the time comes. "

"Well, I got it." Jiang Hongdou was taking notes, listening to Ji Cheng's description of the various functions and benefits of soybeans, and suddenly regained the previous feeling——

We are so poor that we don't even have a pair of underpants, and all resources must be put to good use!

Well... Now that the underpants are already there, he is still the same, nothing is wasted.

"That's all, no more?"

"Well, let me think about it."

Ji Cheng rubbed his chin, in fact, now he really wanted to organize his hands to get out the Aspergillus oryzae needed for soy sauce.

This thing is a common species in the genus Aspergillus, and it is not too difficult to get it out, unlike Penicillium fortified.

However... the desire for appetite still needs to be delayed a little bit, and there are more important things to do right now.

Besides, when there are soy milk, tofu, and stir-fried dishes with soybean paste, the food can be greatly improved.

Ji Cheng secretly swallowed, and shook his head:

"No, I'll write down the specific preparation methods of the several eating methods I just mentioned, and then I will go back and make some preliminary preparations for the formation of the prospecting and mining team."

"Oh, good."

......

At 10 am, Ji Cheng finished his work and returned to Shenju.

He raised his wrist to look at the communication magic thread, put it down again, walked to the Red Lotus Room, knocked on the door lightly, and then called softly:

"red lotus?"

There is no response in the room, Ji Cheng will push the door and go in after waiting, there is no dragon on the bed in the back room.

Huh?Already up?

He froze for a moment, and turned on the communication magic:

"Honglian Honglian, call Honglian."

"Best friend, dear friend, why are you calling me?"

"I didn't see your dragon when I came to your house, have you finished your meditation?"

"Ang, about an hour has just ended."

Red Lotus will also use this time unit imperceptibly. "I've replenished my magic essence, and I'm practicing lightning magic in the backyard."

"Oh, then let me take a look and help you master magic earlier."

"Eh?" Honglian was slightly surprised: "Are you okay?"

"Uh, it's not nothing else, how should I put it?"

Ji Cheng scratched his face, feeling that the world is really unpredictable.

I didn't want to study lightning magic before, but I just got it out by accident, and Honglian was interested, so I optimized it and taught her.

The result is now...

"Guren, I have to help you master lightning magic first, before I can do what I plan to do next..."

"Ah? What are you going to do, dear friend?"

"It is necessary to form a formal prospecting and mining team."

Ji Cheng explained: "Since it's official, they have to enrich their prospecting methods, otherwise the team will have a hard time distinguishing where there are mines and where there are no mines.

In the geophysical prospecting method, there is a very important magnetic prospecting method, which requires the help of lightning. "

"Oh." In the second half, I didn't understand the geophysical prospecting and magnetism, but Honglian was still excited.

Whether it is to master the lightning magic she likes early, or to start mining in the village, she is very happy.

"We are going to mine, looking for magic element!?"

"Well, this is also one aspect, and there are others."

Ji Cheng paused and said, "About the west side, I made a decision before, and I want to tell you about it."

"The west......"

Honglian was startled again, her expression became a little serious, "My dear friend, I remember I said, it's best not to go near the west."

"Well, it's not close to the west, it's just that the village will expand in the future, and I want to make some preventive arrangements.

Wait a minute, specifically, I will talk about it when I come. "

Chapter 190 Are you a monster......

"That is to say, Damimura is avoiding the west for construction first, but sooner or later it will attract attention because of its development and growth, so you should prepare first and start building an armed force now."

Honglian talked with Ji Cheng who came to the backyard, and figured out what he meant.

"Making guns is also one of the purposes of mining."

"Correct."

Ji Cheng nodded: "Then, Honglian, help me see if there is any risk for me to avoid the West and develop by myself, is it feasible?"

"Should, there is no problem."

Honglian thought about it carefully and said: "In the mortal world, even if it is not a pure magic creature, it is difficult to survive.

Because I am used to the existence of Mosu magic, I am bound to do anything here, so I usually don't come to the world of mortals.

All you have to pay attention to is what you just said.

Once it develops and becomes a potential threat, it will definitely attract attention, which I agree with.

Because there are generally no magic essence owners in the mortal world, but it is not without it, but it will not be too deep, so be careful.

and also......"

"what happened?"

Seeing that Honglian hesitated to speak, Ji Cheng shrugged his shoulders and said, "If there is anything else to say, just say it, so that I know what I know."

"Uh, best friend."

Hong Lian scratched her head and said: "It's not that I hit you, I think, no matter how much Damu Village develops, the fact that everyone has no magic essence can't be changed.

That gun... roughly how many levels of attack magic power can it have? "

"This one."

Ji Cheng roughly guessed what Honglian meant, and said, "Looking at the power alone, the initial level 3 magic of the gun, and the level 4 magic of the cannon are not that powerful.

But these things can't just look at power.

Let me ask you, how long does it take to train a level 3 and level 4 magician who can skillfully use level 3 and level 4 attack magic? "

"Uh, if it is specially trained." Hong Lian estimated: "At least three years, at most five years."

"En." Ji Cheng nodded, based on his current understanding of magic, this answer was expected.

"It will take three to five years, right? However, to train a musketeer or gunner who can emit level 3 or 4 attack magic power, it only takes a week or two at least, and a month at most."