Shen Qingqian knew very well the significance of sweet potatoes to the Northern Hubei Army, so this matter was handed over to the most stable people in the family to do.

Wu, Lin, Liang and Shen Jun, plus Shen Qingqian himself.

There were only a few hundred people who learned to farm in the early stage, and Shen Qingqian was not tired of teaching them.

The only bad thing is that the people in Juntun are the same as the exiles on the side of Huanxiyuan, and they all need to finish their own work before they can come to study.

And because Liang Cheng gave a gag order, these people only knew that Shen Qingqian was here to teach them to grow new grains, but they didn't know the yield of sweet potatoes and other information.

Huanxi Courtyard can only steal fun now, no one dares to talk about the yield of sweet potatoes, even Wu Lao Liu's yard has been beaten by Lu Xingchang and others.

That is to say, so far, only Huanxiyuan, Jiang Goudan and others know the specific yield of sweet potatoes, as well as the people in Wu Laoliu's yard.

And Shen Qingqian, the sweet potatoes they harvested this time, except for a small amount left by each family as food, the rest were purchased by the Northern Hubei Army and used for seeding.

More than 10,000 catties of sweet potatoes, according to the cost of 100 catties of seed potatoes for seedlings per acre, the sweet potatoes purchased this time can be planted on more than 120 acres of land.

Hubei is located in the northwest, and now it is planted with spring potatoes, with a single row of ridges, the density of sweet potatoes is not high, Shen Qingqian estimates that it should eventually be able to plant about 140 acres.

If calculated according to the yield of 3,000 catties per mu this time, these fields can harvest 420,000 catties of sweet potatoes during the autumn harvest!

If 100,000 soldiers in northern Hubei only eat sweet potatoes, one pound per day, these sweet potatoes are far from enough.

However, if sweet potatoes are mixed with other coarse grains, it should be no problem to eat them for half a year under the condition of extreme savings.

This is only one season a year, and only 140 acres of land are planted, and after this batch of sweet potatoes is harvested and the planting area is expanded, the military rations of the Northern Hubei Army will no longer be a problem.

After calculating in his heart, Shen Qingqian looked at the people who were burying seed potatoes in the ground, and muttered: "No wonder Liang Cheng wants people to hide the yield of sweet potatoes......"

It is indeed necessary to hide it as much as possible, if it is known to other forces, it should obviously be the advantage of the Northern Hubei Army, and in the end, it may not be possible to point out who is cheaper.

It seems that she still hasn't adapted to this world, and she still has modern peace ideas in her bones, always thinking that everyone should be fed.

But it's okay, as long as Sheng Ze and they can win, she believes that at least the people of Dajin will not go hungry.

……

At the beginning of February, when the spring ploughing was in progress, the people of the entire land of the Great Jin Dynasty picked up farm tools and hurriedly planted all kinds of grains.

"Arruda, why can't we Jun people plant the land well?"

On the way to Beijing, Rong Shaomin looked at the people around him who were diligently farming, and the speed of galloping slowed down, and his eyes were full of puzzlement.

The Jun people were originally nomadic people, but the mountains and rivers and the land were vicissitudes, and the terrain and landform changed once a hundred years ago, so they had to settle down.

But it is really a big test for a nation accustomed to riding horses and galloping horses to suddenly turn them into a farming nation.

This is one of the reasons why the Jun clan first attacked the Great Jin, and they wanted to learn the planting techniques of the Great Jin.

People who are accustomed to robbing can't change this bad problem for a while, and the then Jun Khan directly sent troops to attack Linzhou in the Great Jin Dynasty, but was beaten back by the Great Jin army at that time.

However, the Jun people are warlike and belligerent, and defeat has not made them change their strategy, and after all these years, they still only know how to rob.

It was the first time Rong Shaomin had walked into the hinterland of the Great Jin Dynasty, and it was also the first time he had seen with his own eyes how the Great Jin people planted crops, and it seemed to be no different from them on the surface.

"That's it for today, I had enteritis last night, and I tossed it all night, so that I didn't slow down throughout the day, and I wrote a little bit after I got the child at night, and I revised the manuscript and put it up, so reluctant, according to this update speed, I soon didn't save the manuscript again~"