Of course, the need to produce 1,000 catties per mu makes it almost impossible for artificially cultivated sea wheat to survive naturally, and must climb on the human marine ecological shelf to bear heavy pressure - even with the buoyancy of seawater.

The marine ecological frame is a special kind of structure, thin and tough, which can automatically float on the surface of the water, and after a certain number of years, it can automatically be naturally decomposed - similar to plastic that can naturally decompose.

Theoretically, it can float on any sea surface to provide space for sea wheat to grow, but in the practice of planting, due to factors such as water waves, sunlight, harvesting, etc., it is mostly a natural grazing area within 15 kilometers of the coast.

The vine algae of sea wheat will automatically decay and fall off once the growth period is over, and it is very easy to be naturally decomposed, becoming a rich food source for the fish below, which is also the food source of one-third of the grazing fish area.

There are several landmark inventions of the new era, one of which is the shift from terrestrial agriculture to marine agriculture.

On land, human beings first only collected wild fruits, hunted animals, and obtained food, which was the primitive gathering industry, and the beginning of agriculture was that human beings began to grow plants and breed animals on land.

However, until the early 21st century on the earth, human beings were actually in a state of primitive collection of the ocean, and a large amount of pollution not only destroyed the ocean system, but also led to the depletion and extinction of many fish species in the ocean, which is also an inevitable process in this world.

However, since the birth of sea wheat in this world, marine agriculture has begun to develop rapidly, and has expanded from sea wheat to marine fish, thus freeing up 4/5 of the land farmland. In the past 100 years, the overall land green coverage has reached more than 78%, and the world's continents are green from the sky, which has greatly improved the land ecology.

Around the canal, a large group of gorgeous fish were swimming, Fang Xin listened with a smile, thoughtfully, and in the unknown space. Same-sex induction is beginning to enter the role.

The principle is very simple, if the same particle is cut in half, even if they are far away from each other at the opposite ends of the galaxy, half of them are moving, and the other half is also moving, which is the essence of same-sex induction - there, a new world is unfolding.

…… Summer rains. Even if it's an official road, it's a mud ditch, and even if it's a person with a mount, if you run on this kind of road, it won't take a moment to become a mud man, so basically. Except for the emergency envoys of the imperial court, otherwise passers-by and vehicles are all parked at the post station or in the town, waiting for the weather to clear.

Dongsheng Town, which is the north bank of the Shangling River, connects the official road until the Sandaoying ferry, and the passengers of this road are crowded on the way. Therefore, there are a large number of people who want to cross the river but are blocked by the weather.

Fang Xin was full of muddy water and entered Dongsheng Town, wearing linen trousers. It's already covered in muddy water. The straw sandals under his feet were all mud, but he carried a small package on his back.

With a look, Fang Xin entered a small inn, which was where the inferior people lived.

A shopkeeper stepped forward to greet him, there was no palm light inside, and the environment was dark.

"Guest, what do you want?"

"Give me a private room and stay overnight." Fang Xin said. He wanted to avoid trouble. I have put on the clothes that are wrapped in the best and therefore look. Not too poor.

"Okay, I'll take you there." Sure enough, it was a single room, very cramped, so Fang Xin didn't care, washed it, took off his clothes again, and washed it.

"It's very good, I found the dead man." Fang Xin closed the door and thought.

It was indeed very lucky, the road slipped, and this guy fell into the water, and he died, Fang Xin attached it, and spent a little precious strength to wake up the function, even so, this guy's brain was also damaged by lack of oxygen, and he had no soul, so his memory was a little fragmented when he read it.

He was also very satisfied with his memory, this guy was a small maid, there was no one at home except for distant relatives, and there was eight yuan in his pocket, because he went to the countryside to collect the account, which should have been sent to Zhangjiadian in the county.

Now it is naturally embezzled by Fang Xin.

This kind of long-range spirit can almost think synchronously, but the only drawback is that it can't carry much power, unless it breaks through the fifth order and reaches the sixth order, so it has the power of a clone.

However, this time, it was just looking for Xia Yubing, although this time it was just a projection of the climate, but after all, it was a fifth-order, as long as it was within ten miles, if you met her reincarnation, you would sense it, and you could faintly feel the direction - so there was no need to have high requirements for strength at all.

What to do in this plane, Fang Xin didn't think about it at all, this plane was the first plane to be developed, after reaching the fifth order, some information was known, back then, the Imperial Plane team, but swaggering to interfere in the world, and even preparing to emigrate and so on - so the conflict with this world was also the most intense.

The gods of this world directly intervened, the Taoist group of this world attacked, the empire itself organized, the largest reclamation group in history, 1,632 people after a bloody battle, only thirty-two people survived, and only one-third of the souls of the war died retreated back to the empire, almost causing the empire to suffer a great loss of vitality within twenty years - of course, the world also paid a huge price, the two gods fell, the Daxing Dynasty fell, and then the current Dazhen Dynasty.

Many of the rules of the plane were determined by this bloody lesson.

Now, while some kind of tacit understanding has been reached, and there are constant battles in secret, Fang Xin doesn't want to do anything in this world, which is really a bit stupid.

However, the basic upgrade is still necessary, Fang Xin checked his body.

The quality of this body is not high, but within half a year, it is still possible to forcibly upgrade to the third order, which can already protect itself.

The drizzle has stopped, there are many people blocked by the rain, a little farther away in the big inn, the travelers who have finished eating are fine, three or five people gather together, and talk about the whole world. Fang Xin ate the steamed buns, and when he saw that the rain had stopped, he left the store.

Here is the north-south traffic artery, not far away is the post station, a few people with fierce expressions, wearing long knives in and out. From time to time, he glanced around, this is the garrison of the main road, although there are not many, only a team of ten people, but if necessary, he can control the local village Yong.

The remnants of this body's memory told Fang Xin that the village here is very strong, and there is a special martial arts training ground for the town to practice, and the scale is as high as 200 people. There is a high possibility of being strangled if you make trouble here.

There is a patrol department stationed nearby, and from time to time there are tolerances passing by, after a few glances, Fang Xin returned to his room and began to swallow the Heaven and Earth True Yuan refining body, although it was a little anxious for quick success, but it didn't matter.

The next day, it was still dawn. Fang Xin paid 50 yuan, got on a boat, and the boat left the dock and sailed down the river.

The destination is the Eighty Miles Cen Xi Mansion above, where you can get a sum of money.

Although it is a voyage on the river, the wind is on the road and very fast. Therefore, by the afternoon, the ship had already arrived in Cen Khe Province.

Cen Kye Province, a very prosperous commercial port, is a historical city in this world.

When he arrived at the wharf, he saw that the people from the yamen of the river berth were patrolling, and Fang Xin went ashore quietly, mixed with the crowd, and walked to the west area outside the wharf.

He had the idea of making money out of groceries again.

In all prosperous cities, there are countless people who are declining and prosperous, and there are many people who have no knowledge and do not know the treasure. Therefore, all kinds of goods are bought and sold in old stalls. You might be able to find something good in it.

Although the gadgets in each world are different, most of them are universal, and even if you find the wrong thing, it doesn't matter.

At the moment, it was mixed into the West District, which was crowded with people, and from time to time I saw a few masters. Come out with a long class or two. Walk around and see.

Fang Xin also took a casual look, his capital was only seven. Can't buy anything good.

Waited until a stall, but saw a few broken books, Fang Xin also stepped forward to take a look, the words of all the worlds are similar, but I can also see that it is "Er Collection", take a look, see that the paper is yellow, the ink is still dark and discerning, and the staples are a little rotten.

immediately asked: "Auntie, how do you sell this book?" ”

"Originally, there were nine copies, but my junior was ignorant, and if I tore up three copies, you would make a fifty-dollar one...... "The woman selling the stall looked at it and said.

After touching it a little, I knew that this book was at least two hundred years old, although it was not a complete set, but if you knew the goods, you could also sell it at some price, so I smiled and said, "Okay, that's the price." ”

One book is fifty wen, and six books are three hundred wen, Fang Xin took the money, took it out, and then took a look at the thrift stall, and spent another fifty wen to buy a set of Confucian shirts worn by celebrities who have not yet made merit.

This old Confucian shirt has obviously been washed many times, but this is the truth, and it is also very clean now, Fang Xin found a place, put it on, and washed his hair again.

Fang Xin is a scholar, so he naturally has a kind of bearing, looking at the river, he feels very much like the kind of down-and-out but talented reader, this kind of temperament is difficult for others to imitate.

Then he rolled up this set of books, found an elegant pawnshop in the East District, and stepped forward.

As soon as he entered the door, he saw the owner of this pawnshop looking up, he was over fifty years old, although he was thin, but his eyes were fine, and when he saw this young man, his heart moved.

Fang Xin didn't say much, put the six books on it, silent, but used a spell from the West - Detection Table Sense

This kind of spell, in general, can only feel the other party's good and evil, praise and negation, and the more advanced, can capture the other party's surface thoughts - of course, the object must be an ordinary person, a slightly stronger person can be immune to this power.

The shopkeeper didn't say much, but looked at it carefully, and after a while, he had a definition in his heart, and said, "How much do you want to do this goods?" ”

"This is the "Er Collection" printed 200 years ago, when it was only 3,000 copies, and there are not many survivors today, although this is a fragment, but the fragment with the remnant, you can also make up a full set, and the market price of the full set is also 800 taels of silver, right? You've made a price. With just a few fragments of thought, Fang Xin said so.

The shopkeeper was shocked, when he started, he felt that although this young man was coarse cloth clothes, he knew that he was a scholar at a glance in temperament, and he was also the kind of talented and learned, and now he said that the price in his heart was broken, and he didn't dare to underestimate it, and he muttered for a moment, saying: "Do you want to be a student, or are you going to die?" If I do, I will give twenty taels of silver, and if I die, I will give thirty taels. ”

"Die, fifty taels!" Fang Xin said.

This came to the number in the shopkeeper's heart, he couldn't help but glance at the young man again, and when he saw Fang Xin smiling faintly, he bargained again, and in the end, he died at forty-five taels.

When signing the paperwork, Fang Xin stepped forward, wrote the two words of Fang Xin with a brush, took a look, the shopkeeper was stunned for a moment, this calligraphy, when it was good, there was no sound at the moment, received these, and ordered the counter to take out four taels of ingots, and take out some broken silver.

Fang Xin received it, was silent, and turned to leave.

"Hey, this is too much to take back, and it just goes with the old remnants." When they were far away, the shopkeeper spoke.

"Owner, isn't forty-five taels too expensive?" A nephew answered, but asked again, the remnants of the book that he collected last time only cost 600 yuan.

"What do you know, people are readers, and they know goods!" The shopkeeper glanced at him, raised his voice slightly, and said, "In the future, you will learn from me how to look at people!" ”

Hearing this, the nephew didn't answer much, sped up his movements, and took the remnants back inside.

And Fang Xin took the silver and left the shop, forty-five taels of silver, enough for a small family to have meat and clothes for two years, and now the price of rice is one stone and one hundred catties, and one or two silver can buy three stones!

Buy some good clothes, even if you travel, you can spend half a year.

Fang Xin thought so, as for half a year later, at that time, he should improve all aspects of his body, and it would be very easy to do something, and he didn't have to worry about money.