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On the Azure Star, Xu Fang came to the governor's mansion.

Ma Li quickly opened the door to Xu Fang, and after dealing with Xu Fang for so long, Ma Li also knew that Xu Fang would not come to the door for no reason.

After beckoning Xu Fang to sit down, Ma Li smiled and asked, "Say, what's the matter with this time?"

"Governor Beauty, does the soil improvement liquid have an effect on Azure Star?" asked Xu Fang.

Hearing this question, Ma Li's eyebrows raised, and she said happily: "Of course there is, let me tell you, it's only been a week, and about a meter below those willows and other large plants have been purified, and there is also more than half a meter of Ma Lian grass." ”

"How many times can this soil improvement solution be used on plants? If it can be used all the time, I believe that a lot of land can quickly become soil that can be planted. Xu Fang asked.

"Yes, the effect of soil improvement fluid is obvious, and it can be used for a long time. However, it cannot be continuous, the principle of this improvement solution is to allow the plant to quickly absorb various elements in the surrounding soil, and absorb all the good and bad ones. The bad elements then circulate in the plant and return to the soil when the cycle is clean. But if the bad elements accumulate too much in the plant, it will cause the plant to die. Therefore, you can use soil improvement solution once a month. Ma Li said.

Xu Fang made a simple calculation, and then said: "That is to say, if the planting area is one million square meters this month, after using a soil improvement solution, the improved soil can be planted with new plants, so that as long as the number of plants is sufficient, we can extract the improved soil for planting, and the planting area can be directly tripled!"

"It stands to reason that this is true, but because the improved soil is not as rich in nutrients as the soil you bring in, it is up to 1.5 times higher. Ma Li said truthfully.

"Can the soil improvement liquid be mass-produced now?" Xu Fang asked again.

"We can't produce on a large scale, but I believe that with the commission of our technology, the production speed will be faster and faster. ”

"I also need soil improvement liquid, I wonder if this can be exchanged?" asked Xu Fang.

Ma Li pondered for a long time before she said leisurely: "To be honest, if the soil improvement liquid can be mass-produced, then the soil no longer needs to be transported by you. The soil can be purified and used by ourselves, and the plants can be cultivated and reproduced. The price of soil and existing plants, we have to re-evaluate. Don't blame the philistine, I hope you can understand that this is a market-led and changing demand. ”

Xu Fang understood what Ma Li said, nodded and said, "I understand, what I'm asking now is whether I can change it? If I can, I can also take out the equivalent thing." ”

"What are you going to exchange it for?" said Ma Li was suddenly interested.

"Although there are plants and soil, the plant species are too monolithic now. The plants found in Tamar City are marlian grass, willow trees, bamboo, and a small number of apple trees. But have you ever seen any other plants, have you ever seen colorful flowers, have you ever seen trees with different sizes of leaves, have you ever seen any other life than humans, have you ever seen all kinds of birds flying in the sky, have you ever seen fish swimming in the water?"

As Xu Fang's words unfolded, Ma Li also understood what Xu Fang meant. He wants to trade all kinds of species for what he wants.

Diversity of species, which is really much needed. Ma Li nodded and said, "This is very good, we need these new species you mentioned, and we can trade the soil quality improvement liquid." ”

"How to redeem?" Xu Fang asked.

"We'll rate the species you brought, and if the value is higher, the more things you can exchange, what do you think?" asked Ma Li.

This method is also a good proposal for Xu Fang.

In the past, we had to rely on the very hard work of transporting vermicompost and green plants on a large scale, and then exchange them for a small amount of animal enhancement liquid and other things. But now, Xu Fang doesn't need to bring many things, and each time he brings a few simple species, he can exchange for something countless times higher than before, and this result is undoubtedly much easier for Xu Fang.

He immediately nodded and said, "That's okay, just as you say." ”

"I wonder when the new species will be brought?" asked Ma Li.

"Today, when will your soil improvement fluid be mass-produced?" Xu Fang asked.

"If nothing else, it will be enough in a month, and the value of soil improvement liquid will definitely be lower than it is now. Ma Li didn't hide it from Xu Fang, and told the truth happily.

"Then we've been mainly exchanging other things lately, you can wait a minute, I'll bring some things now, you look at the appraised value." Xu Fang said.

"No problem!" said Ma Li expectantly.

Xu Fang didn't stay long, and drove the flying machine back to Earth.

There was nothing else to prepare, some grass prepared by Xu Fang.

There weren't many of them, just a few, and then Xu Fang returned to the Azure Star.

It didn't seem to have expected Xu Fang to be so fast, seeing Xu Fang come back, Ma Li was a little surprised on her face, looked at Xu Fang and asked, "So fast, what did you bring here?"

Xu Fang unfolded the grass he brought and put it on the table.

The grass was still attached to the soil, and now it was placed on the table, growing straight away. It looks verdant and green, very fresh and lovely.

"What is this?"

"This is pasture, which can green the surface, improve the drawings, prevent wind and fix sand. Xu Fang explained.

Hearing Xu Fang's explanation, Ma Li was a little disappointed in her eyes: "This is very similar to the effect of Ma Liancao?"

"To be honest, it's quite similar, but the potential of forage is a little bit bigger. You look at these pictures. As he spoke, Xu Fang turned on his mobile phone, there were some villas on it, and there would be their own lawn next to the villas.

Pointing to the lawn, Xu Fang said: "See, this is a lawn composed of pasture grass, which can be used for greening, beautiful and friendly." Isn't it romantic that people can sit on the lawn in normal times?

"Won't you sit on the grass to death?" asked Ma Li with wide eyes.

"No, grass is tenacious. Xu Fang shook his head.

Ma Li's expression was a little moved, as the governor, her vision would not be short-sighted. Although the Azure Star now has a great demand for green plants, it can be said that meat and vegetables are not taboo, but if the Azure Star will one day not lack green plants at all, then people will pursue beautiful things.

This lawn really looks beautiful, and she wants to plant a lawn around the governor's mansion, and she can roll and run on it when she has nothing to do, and she is in a good mood when she thinks about it.

"It looks good, but for Azure Star, it's still not very useful now. Ma Li said this, but she was actually ready to start lowering the price.

Xu Fang was originally a businessman, and he didn't understand the little Jiujiu in Ma Li's heart, so he smiled slightly in his heart and said: "The role of forage is not only that, its role can be said to be infinite." You look at these things again. ”

As he spoke, on the projection of Xu Fang's mobile phone, sheep, cows, rabbits and other things appeared.

"What are these things?" asked Ma Li in amazement as she looked at them.

"This one is called a sheep, this one is a cow, and this one is a rabbit. One thing they all have in common is that they both eat grass, and pasture is their favorite. These three animals can be eaten by people. You look at these dishes. Xu Fang flipped the picture again, and the picture began to scroll mode.

Roasted whole lamb, stewed lamb, stewed mutton, braised mutton, braised mutton, fried mutton, finger lamb, cumin mutton, braised lamb chops.

Beef in sauce, beef stew with potatoes, braised beef, stir-fried beef.

Roast rabbit, braised rabbit, stir-fried rabbit......

Looking at the pictures that made people's appetite move came out, Ma Li's saliva didn't hold back, and it flowed down directly.

After a while, Ma Li realized that she had lost her temper, and hurriedly wiped it before saying, "These things eat grass, and then their meat can be eaten, right?"

"That's right!" Xu Fang nodded.

"When are you going to send these things after you bring the grass?" asked Ma Li.

"As long as there is something suitable to exchange, I will send it over. Xu Fangwen said.

Ma Li also quickly thought about what Xu Fang needed, and after thinking about it, Ma Li's eyes suddenly lit up, looked at Xu Fang and said, "It's better to do this, you bring the pasture, cattle, sheep, and rabbits." Didn't you want the technology to convert solar energy into electricity? I can give this to you. ”

Hearing Ma Li's offer, Xu Fang's breathing suddenly became heavy.

Ma Li had promised Xu Fang that when the green plants were all planted in Tamar City, she would consider teaching Xu Fang the method of converting solar energy into electricity. But the area of Tamar City is very large, and Xu Fang doesn't know how long it will take to fill it up.

Now that there is a good opportunity in front of him, Xu Fang is not willing to give up.

But as a businessman, Xu Fang would not agree directly, and pretended to look at Ma Li with amusement, Xu Fang sneered: "Governor Beauty, what you think is too beautiful, right? We are not particularly rich in species there, and cattle, sheep and rabbits are very precious, you want to change all the methods of solar energy conversion of electricity? We also have solar power generation devices there, but they are not so developed." If we devote ourselves to research for a few more years, we will be able to reach your current level. ”

Xu Fang's words are half-true, solar power generation on the earth really exists, but if you want to be so developed as Blue Star, solar energy alone can meet the easy operation of a heavy machine, and Xu Fang knows the difficulties very well.

Hard.

But also because Xu Fang's performance was very good, he also successfully frightened Ma Li.

"Say, then how do you want to change?" Ma Li couldn't get Xu Fang's bottom line, and threw the ball to Xu Fang again.

"Forage for technology. Xu Fang said simply and clearly.

"This can't be done, grass and rabbits are exchanged for this technology, otherwise don't think about it!" Ma Li rejected Xu Fang's proposal.

"Do you still want rabbits, do you know how precious this is?" Xu Fang exclaimed in distress.

"Do you know the value of our scientific research results? Even in the Azure Star, it is a very powerful existence. I believe that on your planet, this is a very valuable thing, right? Although the development of science and technology is very fast, you should also be able to understand in your heart how long it will take to make a breakthrough. If you want to develop to our level, I don't think it's possible in twenty years, right?" Although Ma Li has never been to the earth, she has been dealing with Xu Fang for so long, and her impression of the earth is not particularly vague.

"It's quite valuable, forget it, for the sake of being a beauty, I will promise you this time, next time you can't bargain so hard!"

Xu Fang's expression was as if he had suffered a big loss, but his heart was already crooked.