As an engineering dog, Zhang De once again entered a professional state of non-business. Recently, I started a part-time agricultural student and research on the development of animal husbandry, which is like playing a game, and the dungeon is never finished.

But Zhang Decheng is the party, so don't care about these details.

"Jun Peng, have you ever planted alfalfa vegetables?"

Alfalfa is edible alfalfa, which is called grass head and sheep grass in Jiangnan, and there are also golden cauliflowers. Not to mention the convenience of planting, the harvest is even more abundant, and the same as leeks, a stubble can grow after cutting, and the land requirements are not high. It is a good agricultural product to increase vitamin intake and increase the feed source of livestock.

Most importantly, it is a good choice for phosphate fertilizers, just like milk vetch. Among the open-pit mines that Zhang De has at hand is the phosphate mine in Qinghaikou.

Of course, if it is known that he is so violent, it is estimated that he will be beaten to death by his peers in the next 1,500 years......

"The ancestors had a trial planting, and it was quite productive in Henan and Shandong. If the herbs are not enough, the goldenrod can satisfy hunger. And after drying, it can be stored for a year. ”

Although Jia Junpeng is young, he is good at farming, and he proposed ten acres of land to plant one acre of taro. And the use of ridges has also been greatly improved, soybeans are planted on the ridges, or broad beans are planted, and in the middle of the irrigation canals, water chestnuts, mushrooms, cress, and calluses are replanted.

What makes Zhang De feel that Jia Siqian is worthy of being the chief druid of the Northern and Southern Dynasties is that he actually has a very accurate record of crop interplanting to improve the yield per mu, which makes Lao Zhang feel that Jia Siqian was born at the wrong time, if he lives in 1,500 years, then he will be the father of a certain high-yield crop.

"Hmm...... Alfalfa can be widely planted in the sandy land of the Hetao, and it does not consume much soil power. People can eat it, chickens, ducks, geese and sheep can also eat it. The bottom fertilizer only needs river mud, and the income is good. ”

Zhang Gong said very much, recently Fei found that milk is fermented after acidification, and the material of alfalfa is worse than that of safflower grass, but it is more suitable for calves and lambs. If it is in captivity. It can save a lot of grassland. ”

"Goats should still be less, just for food, and they will still be raised in Liaodong in the future. The sheep eat grass, easy to eat grass roots, there is no grass on the surface, the land is loose and porous, easy to be washed by rain, and finally turned into a wasteland, no longer life. ”

Listen to what Zhang De said. Jia Fei was stunned: "There is such a thing?" ”

"Otherwise, how could the ancients fallow the plow? Isn't it just to restore the earth's strength? The same is true for grazing, when the water is full, it overflows, and it should not be excessive. After some time, I will go to Toyosu and teach you how to fix sand. ”

"Thank you Gong Zhang!"

When Jia Fei heard this, he was immediately overjoyed, he followed Zhang De and learned a lot of useful agricultural knowledge. This is something that Qi Min has nothing to do in his surgery. It even solved a lot of questions about the ancestors.

"The people take food as their heaven, and they must not ignore it. Don't be careless. ”

"Be taught."

After that, Zhang De pointed to a large area of milk vetch in front of him, "The flowering period is almost coming, and at that time, the beehives can be transported here." It is also necessary to organize manpower and harvest forage. ”

The safflower grass is milk vetch. Among the forages of the native species, it is considered good. The key is that the yield is high and it can be cut three times a year. The output per hectare is about 40 tons, and green manure can be used at the same time, which can be an important source of land nitrogen cycle.

The only fly in the ointment is. It cannot be given to cattle and horses as a single feed, and the ingredients should not exceed 50%, otherwise it will cause bloating. However, if it is used as pig feed, there is no such concern.

The biggest advantage is that it is used as a green fodder for the winter, and its nutrient loss is less than that of alfalfa grass.

It is a pity that the Western Turks have not yet been defeated, otherwise there are multiple sources of fodder, and the breadth of the steppe in the seventh century in northern Cyprus is more than three streets compared with the desertified steppe after the nuclear explosion 1,500 years later.

In Lao Zhang's last life, it was tens of millions of cattle stocks, if the grassland in the seventh century was mastered in the era of industrialization, the 100 million-level cattle population was not a dream at all, but unfortunately Zhang De didn't even grab the eggs and hairs of industrialization now......

"Zhang Gong, how did this bee survive the winter?"

Jia Fei has always been curious about this.

"Sugar."

China has been keeping beekeeping since ancient times, but it is generally left with honey for winter. And Lao Zhang made white sugar, cement and red bricks, and anthracite, so there was a warm house......

In short, the little bees are still very hardworking, and some of the honey produced was eaten by themselves, some by Xue Zhaonu, some by Cheng Chubi, and some by Li Dong. Then one day, the Zhen brothers said to the queen that honey can beautify the face.

The eldest grandson queen is a dignified and beautiful female model, how can she waste the people's fat and people's ointment? Of course, it's just a little bit on the face.

No one can stop the enthusiasm of Li Dong and Li Dong and his father's wives, and even the ladies of Chang'an don't seem to be smeared on their faces, which is not good enough.

In short, the little bees are still very old, and some of the honey produced was painted by Empress Changsun, some by Xue Jieyu, some by the Fang family's vinegar jar, and some by Princess Anping......

Loving beauty is a good thing, so in order to thank the Zhen brothers for their vigorous development of the beauty industry, Zhang De will give a subsidy of ice charcoal every month. The two old men said that they were ashamed, but the posture of reaching out was properly disrespectful.

Of course, as a famous doctor who hangs the pot to help the world, the Zhen brothers will definitely not say anything about the scarcity and preciousness of honey in the world for the sake of ice and charcoal subsidies, which is an accurate judgment made by a doctor in the noble temperament.

Empress Changsun is such a dignified person, and the honey consumption is spread evenly to about two hundred yuan per month. Zhang De was very pleased, this is what Muyi Tianxia said, others are all three hundred yuan, like the wives of some king-level cows, it cost ten thousand yuan to buy honey...... The losers should be swept away.

Where is beekeeping so easy.

However, the flowering period of milk vetch is still very long, and honey is scarce, and it is also rare in the grassland. Zhang De's estimate of the 300 ml bottle can be exchanged for a good deer skin when it is full, and it is a big male deer.

This is the power of knowledge, and Zhang De often uses this to educate the little ones in the Tongren Medical Hall.

"It's sugar? I see......"

Jia Fei nodded again and again, "That white sugar is really a good thing." ”

Bulk goods are good things, important materials for making a fortune in the Age of Discovery, that is, China's bottomless demand for food, otherwise there is surplus land to make sugar, it is simply refreshing.

"Is the track in Hanhai City paved?"

"It had been paved for thirty miles the month before, but the planks were damp and had rotted a lot. And the water power of Kakun water is far less than that of Huaiyuan, the grinding surface is acceptable, and the slotting of the wooden board is worse. ”

"Hmm......"

The problem of wooden rails is something that cannot be helped, and in general, it is used in mining areas. But Zhang De can't help it, he needs a road with a large volume of transportation from Hanhai City to the Dule River in the east. In this way, supplies can be transported north along the river, to the North Sea, and even further north.

It's not that he has a brain pump, but the eastern tribes have more furs, and if they want to increase the volume of trade and make more money, they can only do so.

But the problem is that it's not that he doesn't want to build railroad tracks, it's that he makes iron and steel...... It's state-run! (To be continued.) )