"Yes, young master!" Curious, John replied: "We generally plough the land before early autumn, and the rich families use oxen to pull the plows, and the average family borrows oxen or uses people to pull them, and the oxen are rented for rent." After watering, sow the seeds and weed several times after the next spring. ”

"How to fertilize?"

"Those who have livestock will be poured dung before ploughing the ground, and those who don't have livestock will not be fertilized."

"How do you water it?"

"Young master, there is a small river not far ahead, and the water is picked from there." John said, pointing into the distance.

"You mean picky? What to do if you are far from the river? ”

"If you are far away, you can pull it by a car, and no one will plant it in any farther land, young master!"

"Damn, it's so primitive!" Ma Su was surprised that the Chinese words came out.

"What did you say, young master?"

"Well, nothing." Ma Su knew what the problem was, and the wheat field in front of him did not have criss-crossing ridges and canals, and it felt like people were missing skeletons and blood vessels, so it seemed that the problem was here.

"Let's go back, Aronsi, it's nothing to see. Alas, how did you go down, hell! ”

Marsu jumped off the horse, and John, who was on the side, also hurriedly jumped off the horse and picked Leon down. Ma Su walked into the wheat field to observe for a while, but he couldn't see anything, except for the mess and the dry land, which was no different from the later generations. He inadvertently grabbed a handful of wheat stalks and pulled them out with great force, and it was easy to uproot them. Ma Su's heart moved, although the drought dried up the land, but in his memory, it took some strength to uproot it like this, and the roots of wheat were very numerous, and the grip was very strong. (At that time, the wheat was harvested with a sickle, and only the ears were harvested.) ）

Ma Su looked at the straw in his hand, there was no difference from later generations, the only difference was that the roots of the straw were few and short, less than 5 centimeters long, and the beard was not dense. Is it broken? Squatting down, Ma Su scraped down with his hands.

"Young master, leave this heavy work to me." John has not forgotten who he is.

"No, you don't."

After digging down for a while, Ma Su found that there were not many roots broken inside, so try it in another place, Ma Su thought to himself: "Could it be that the varieties are different?" Ma Su did not give up, and dug a few more places, feeling that the wheat was not deeply rooted, and there was a very hard layer of soil not deep from the ground. This reminded Ma Su of what his grandfather had said when he was a child when he ploughed the field: the field should be deeply ploughed every three years, otherwise the plow marks of the submerged plough will form hard soil, which will affect the growth of wheat and even fail to germinate.

It seemed that the problem was with the plow, and Ma Su knew it, and then said to Leon with a smile: "Let's go to the creek and have a look." ”

"Let's go, I'd like to jump in and wash now," Leon said.

"Take this path, young master."

For about ten minutes, I saw a lot of civilians pushing carts on the road, and there were several large wooden barrels on the carts, which seemed to be going to the river to get water. Ma Su and the others drove forward, and after a while, they saw a small river twenty meters wide. A simple cross-bridge connects the two banks, and the water level is low enough to see the outcropping beach. There were a lot of people fetching water, and they struggled to carry wooden buckets to the shore, then emptied them into the big buckets on the cart and turned back.

Leon shouted, ran downstream to get water, and jumped in with his bare ass. Then he shouted at Ma Su: "Alonsi, this is too painful, come down!" ”

Ma Su also stripped off his butt and jumped in, causing many water-fetching laundry people to laugh good-naturedly.

"John, why is there so little water in this river?" Marsu asked John, who was standing on the shore.

"There has been too little rain in the past two years, and it wasn't like this when there was plenty of rain in the past."

"Whose fields belong on both sides of the river?"

"The fields near the river belonged to the patriarchs and nobles."

"Sure enough!" Ma Su said secretly in his heart.

Ma Su stopped talking, and carefully looked at the river and its banks in thought.

The drop from the river to the shore is more than three meters, and such a high drop, coupled with the distance of the slope, it is difficult to divert water to the shore by ordinary methods. But this is not difficult for himself, and the cylinder car that Ma Su knows can solve this problem. You can put piles of different heights from the river to the bank, connect them with the river bank to form a plane, and place a simple water tank, so as to solve the problem of drop. The only difficulty is the production of the cylinder car, I don't know what the level of craftsmen is now, it seems that I will have to make a cameo in carpentry in the future.

In the next few days, the team of martial arts practitioners grew day by day, and people hoped that their children could become warriors like Ma Su, and their own strength was the foundation of survival in troubled times. These days, Ma Su has almost circled around the territory twice, John doesn't understand Ma Su's purpose, but he doesn't need to understand, just protect the young master and do his part, but the young master seems to have a deep grudge against this river.

Ma Su's family has its own handicraft workshop, where they make farm tools and necessities. After a few days in the workshop, Ma Su came to the conclusion that there was no uniform unit of measurement, and the production of all tools depended on the experience of the craftsman, which was very inefficient. However, through improvement, it should be possible to make a cylinder car, and the production of several key parts requires the use of brains, such as gears.

Every night, Ma Su locked himself in the house, on the one hand, to summarize the day's lessons. On the other hand, he had to draw drawings quietly, and he couldn't worry about it, although charcoal was easy to make, but there was no paper! In addition to wood and fabric, no better carrier could be found now. Suitable planks were hard to find, so Ma Su decided to draw a draft on the walls and floor, and when he finalized it, he would use charcoal to draw it on any cloth he could find. Every time before going out, Ma Su had to tell his subordinates not to clean his room, and finally simply find a lock to lock it. If the drawings drawn on the ground were swept away by some hard-working subordinate, Ma Su would really want to cry without tears.

Of course, in the process of creation, there will always be a flash of inspiration in his mind and some good ideas will appear. These ideas include many aspects, including the idea of making money, having some gadgets, and the idea of training. In short, Ma Su would write these ideas on the wall in Chinese, and proudly said: "I have the ability to decipher!" ”

In this way, half a month passed in a flash.

That afternoon, Ma Su had two pieces of cloth in his hands. One of the pieces was densely drawn and criss-crossed, but on closer inspection it was vaguely a military map outside the city. There are towns on it, with dirt bags, creeks, woods, and wooden bridges, and they are scaled countless times over. Drawing a military map is Ma Su's basic skill, but this map not only has a military role, the criss-crossing thin lines are the layout of the canals drawn by Ma Su after field investigation. The canals covered almost all the cultivable land in the territory, and if it did, the tribe would add nearly 200 hectares of arable land.

Another piece of cloth is a drawing of the production of the tube car and the bracket, and Ma Su lists the various parts of the tube car separately, and indicates the size and materials used to make it. As for the stent, it is even simpler, and civil engineering is a compulsory course for military commanders. However, this very simple, even rough picture, in later generations, can be difficult for Ma Su. To draw it, Masu made compasses, triangles, and T-rulers himself, and divided the scales. Solving the tool problem, Ma Su has a headache about how to explain the scale and Arabic numerals to others, but now he can't control it.