On the same day, after breakfast, Liu Su asked Liu's father to lead the Yalita tribesmen to start cultivating fields in the valley and digging a large pond.

Don't look at Liu's father as a gardener, but he is also a farmer. Under his leadership, the Yalita people began to dig on both sides of the stream that ran through the valley.

For a while, in this small valley, the voices of people were boiling, the trumpets were loud, and the dry one was in full swing.

If people who don't know see it, they will think that they are digging up some great treasure.

Then Liu Su and the others knew that Bi was too impressed by the fresh food last night.

"Grandma, when the time comes, you should leave an open space between the fields and make a ridge.

Plant mulberry trees on the ridges. Peanuts or soybeans can be planted under the mulberry trees every year.

This mulberry leaf can be used to feed a silk-spinning insect called a silkworm. Silk can be used to weave cloth and make clothes. Later, it can be used as a source of income and expenditure for the family.

And peanuts and soybeans can be eaten daily and can also be sold for money.

After the formation of this ridge, it can also prevent floods and prevent soil erosion in the rainy season. ”

Grandma listened very carefully, and although there were many words that she did not understand, she had already decided that she only had to follow the girl's instructions.

Seeing that Grandma had no doubts, Liu Su continued: "Because this land is newly cultivated, the land is not fertile enough. This year has also entered September. It is not suitable for replanting late rice.

However, you can plant a season of winter rapeseed first, and the rapeseed oil harvested in May of the following year should be enough for the family to use for a year.

This rapeseed oil is used in place of the animal oil you are using. Because vegetable oil has much lower cholesterol and fat than animal oil.

This long-term consumption can also reduce the incidence of high blood pressure in your clan.

At the same time, it also made the new land fertile and reduced the pests that were planted at that time.

At the end of May of the following year, you can plant a season of medium rice and harvest it at the end of September.

In a good harvest year, you can use rice in season to ensure your annual rice use."

Qingsang and Zhiyi, who were standing on the side, listened, and their eyes lit up. But they didn't ask questions at this time.

Grandma received too much information for a while, and people were in a state of stunned digestion.

Liu Su confessed to changing the confession. She looked at Qingsang and Zhiqi beside her and said, "Uncle, Master Zhiyi, how about we go into the mountain again today?" I would like to collect plants again.

Saying that, Liu Su's voice suddenly became lower, and he winked at Qingsang and Zhiyu, very naughty: "By the way, find a good thing, those who see it have a share!"

Zhiqi and Qingsang were both slightly stunned, which implied that the tone was so obvious, how could they not hear it.

Although the two of them were puzzled, they nodded at the same time.

Seeing that the two agreed, Liu Su ran to Liu's father and whispered a few words. Laughing again, he ran back.

Father Liu looked at his daughter's back, obviously still so petite, standing between Young Master Qing and Master Zhi, he didn't feel peaceful at all.

He shook his head, sighed, and commanded everyone to get to work.

……

Here, Liu Su and the three of them took advantage of Grandma's sitting in the clan to reclaim the new land.

Under the guidance of Jin Mo, Aman learns all kinds of novel dishes.

With Blue Hunt, Blue Leopard, Yongmo, Qianfeng and two six people hidden in the shadows, he went up the mountain from the east of the valley.

After moving away from the sight of the crowd, Liu Su turned on the induction mode, and under the guidance of the plant, led everyone to turn left and right, and found the stream that flowed from west to east and crossed the valley.

Everyone followed behind Liu Su and didn't ask much. Follow the creek all the way east.

It was close to noon when Liu Su finally stopped, and the stream along it had now merged into an underground channel.

The underground river is small and the water is fast. Liu Su and the others couldn't follow at all.

Liu Su looked around and didn't find a suitable way.

I had to let Hua Yueye collect information, find the exit at the other end of the underground river, and find a way to bypass.

"Uncle, Master Zhi, let's set up camp here first, rest, and eat something."

Qingsang and Zhiqi saw that Liu Su's forehead was full of beads of sweat, and they both nodded.

"Xiao Su'er, what are you looking for? If you don't say it, everyone will help find it together. Look at you leading the way, tired and sweating." Qingsang couldn't help but ask.

Liu Su sat on an exposed stone, wiped the sweat from his forehead, and said with a smile: "Uncle, of course I'm looking for treasure." After we find it, we'll give it to the Yarita tribe."

Qingsang was taken aback, he never thought that Liu Su went out to find treasure this time.

Zhi was also shocked.

Even the Blue Hunter Qianfeng and the others who were doing their work were all doing their work. It took a long time before returning to normal and continuing to prepare lunch for the three masters.

"Amitabha, the little benefactor, is really broad-minded and has no turbid thoughts."

Liu Su smiled: "Little girl, this is self-aware.

One person's power is too limited. So I can't be as good as Master Zhi said.

Besides, I don't know what the ancestors of the Yalita tribe are buried, and whether it's worth it or not.

Maybe in the end, everyone will be busy in vain."

Qingsang listened to Liu Su's indifferent tone, and laughed at herself: her heart is not as good as a little girl.

He walked up to Liu Su and sat down: "Little Su'er, uncle is not short of money.

There is no shortage of fake monks, so you can keep them as dowries in the future."

Liu Su shook his head, didn't answer Qingsang's words, but said, "Don't talk about this first, wait until you find it." ”

Ji Yan also walked over and sat aside. I'm not dwelling on this issue. Instead, ask another question.

"Little Su Shi, just under the mountain, you taught the Yalita tribe to plant trees on the ridges, what does it mean to plant beans and peanuts? Can it really prevent soil erosion and flooding?

And can planting rice and rape in rotation really improve soil quality and prevent insect pests"?

Liu Su didn't expect Zhi Ji to ask this, she told her grandmother like that, just because she lived in the countryside when she was a child in her previous life, and it was common for those old farmers to do this.

Later, I occasionally had the opportunity to go to the field with my grandmother to raise seedlings, and when I asked my grandmother, I found out that it was to improve soil quality, prevent insects, prevent floods, and prevent soil erosion.

This is especially true for the fields that are backed by the mountains.

But she doesn't really know much about this herself.

Zhi's question, she knew what he was focused on.

Liu Su was silent for a while, organized the relevant knowledge in his head, and then replied cautiously: "Master Zhi, I know very little about the agricultural discoveries of the Great Song Dynasty.

But as far as I know, rotational planting and interplanting have a role.

In fact, many plants have symbiotic and mutually beneficial relationships, as well as mutually exclusive relationships.

It's just that a lot of people don't know.

For example, rice needs water to survive, while oilseed rape can survive on dry land. When a piece of land experiences a season of blisters, it will breed many pests that adapt to the aquatic life.

If the next season is changed to dry land, then those aquatic pests will not survive.

In the same way, the same effect can be achieved by exchanging dry land for water.

The alternation of dry land and water land can also make the soil not solidify, thus maintaining its fertility.

If the Great Song Dynasty can vigorously promote the rotation measure, then the yield of one season can be increased by at least one-third when the pest is reduced and the land is fertile. ”

Both Zhiqi and Qingsang were taken aback by Liu Su's one-third of the data.

This is not a small amount, if it can really succeed, then the Great Song Kingdom will have the spare energy to vigorously promote another crop while planting rice.

Zhi's eyes were as bright as stars, and he looked at Liu Su with excitement: "Little Su donor, do you know what else can be rotated with rice besides rape?"

”

Qingsang and Zhiyi