"Wei Daban, the Academy of Engineering needs some fertile land to cultivate good seeds, you can arrange someone to do it."

Apocalypse commanded lightly.

Wei Zhongxian hurriedly said: "Long live, the slave knows that the establishment of the Engineering Institute by Long Live must be a good thing for the benefit of the country." The slave maid is not as far-sighted as Banzai, but she will also fully support the Academy of Engineering. ”

"The slave maid has a few good fields outside the city, and if the slave maid wants to donate it to the Engineering Institute, it will not bother the household department, please long live the permission."

Hearing this, Tianqi smiled and said: "It's rare for Wei Daban to understand the righteousness so well, which shows that Wei Daban has always pretended to be Ming in his heart, so I thanked Wei Daban for Academician Xu." ”

Wei Zhongxian hurriedly bowed down and said: "The slave and maid are afraid, and it is the blessing of the slave and maid to be able to do their best for Long Live and for the Ming Dynasty, and it is also what the slave and maid should do." ”

Tianqi walked down from above, and said in a gentle voice: "Wei Daban has been at home long enough these days, it's time to walk around, accompany me to the palace back garden." ”

Wei Zhongxian was stunned for a moment, and then said excitedly: "Long live, long live the slave and maid Xie Wuhuang, long live, long live." ”

It was originally a small gesture, but it was a clear release of kindness from the Apocalypse.

At this moment, Wei Zhongxian understood even more that as long as he was obedient enough and wanted to live what he wanted, he would soon be rewarded.

After the problem of the experimental field was solved, it was night, and Apocalypse was alone in the study, opening the long-lost invention system.

It's not that I forgot about it before, but the invention is insufficient, and the things I want to invent haven't found the right person to take over, so it's been delayed until now.

However, since more than 2,000 flintlock pistols have been mass-produced, some invention points have been accumulated, and relevant talents have been found.

Everything is ready, only the east wind is owed, and now you can start inventing.

Apocalypse originally thought that ten flintlock guns should be able to change an invention point, and more than 2,000 guns, it would be quite good to change more than 200 points.

As it turned out, he was a little overthinking, and when he saw that the number 84 was displayed in the location of the remaining invention points in the system, the apocalypse was directly speechless.

If you deduct the remaining three points from before, that is, only 81 points have been added, it will be converted to a mass production of thirty flintlock pistols to change an invention point, which is too difficult.

If according to the rules of the system, after the process becomes more and more advanced and the speed of production becomes faster and faster, this conversion ratio will be further expanded, and it may be possible to mass produce 50, 100, or even 1,000 pieces to change an invention point, which will be even more maddening.

The system's move is naturally to put an end to finding loopholes in the system to brush the invention point, and the system is also afraid that the apocalypse will brush a "Miss Qiu" out.

Although there are some disappointments, the rules are made by others, and the apocalypse has no choice but to adapt.

Now there are 84 invention points, and you can invent something that you have thought of for a long time, and this is the seed.

Yes, seeds, seeds of high-yielding crops such as corn, potatoes, and sweet potatoes.

If it weren't for the fact that the prisoners were about to be conquered, Apocalypse might have invented the seed last time, and then invented the flintlock pistol and those sets of hydraulic machinery.

Because people in the Ming Dynasty sell their sons and daughters all the time, and even starve to death, the sooner these high-yield crops are promoted, the sooner this situation will be alleviated.

There are also desperate peasant rebellions, for the same reason, if they can eat enough, few people should be willing to risk their heads to rebel.

Therefore, solving the food problem is not only to help the people who regard food as their heaven, but also to help the imperial court resolve the internal crisis.

If the internal stability is, no matter how powerful the Jianyu outside the gate is, can it still be overturned? Consume and kill you.

In fact, potatoes, corn and sweet potatoes have been introduced to Daming in the past 100 years, so Daming does not lack seeds for these crops.

Apocalypse also needs to invent, nature is not a kind of improved species, in later generations, these crops have many different types of seeds, and the system provides a wide variety of seeds.

According to the character of the apocalypse, it is natural to invent a variety that has all the advantages of the highest yield per mu, the strongest disease resistance, the best quality, the best taste, earlier maturity, and the strongest adaptability.

Is there a breed of this breed? Yes, but seeing a large string of zeros behind the number of the required invention point, Apocalypse gave up directly, purely playing with people.

Looking at the invention points that are less than a hundred, you can only choose from several first-generation seeds, and you can only choose one.

In the end, Apocalypse chose Sweet Potato Seven because Sweet Potato Seven was considered the best among the original seeds.

One acre of land needs 100 catties of sweet potato No. 7 seeds, two invention points can be exchanged for one catty, 84 invention points, can be exchanged for 42 catties, and less than half an acre of land can be planted.

Although it is not much, the experimental field has been planted with these cultivated varieties is already good.

And the reason why Apocalypse chose sweet potatoes instead of potatoes and corn is because now is the time to cultivate sweet potato seedlings, spring potatoes have been missed, and there are still many months before autumn potatoes.

Corn can only be planted once a year, and it takes about a month to sow it.

If Apocalypse wanted to cultivate corn first, of course, he could wait another month, and there would be no shortage of time, but he still chose sweet potatoes.

Because the yield per mu of sweet potato is much higher than that of corn, another important reason is that Tianqi had talked to Xu Guangqi before, and Xu Guangqi accidentally learned that sweet potato is a high-yield crop for famine relief when he was worried about his father in his hometown of Songjiang Mansion because of the loss of his father.

So, he introduced sweet potato seeds from Fujian and then promoted them in the Songjiang and Suzhou provinces, and the harvest was very good.

Therefore, as an academician of the Academy of Engineering and a young academician of the Agronomic Bureau, Xu Guangqi has rich experience in sweet potato planting, and if this improved seed is handed over to him, the chance of success will naturally be much greater.

Now that a decision has been made, Tianqi no longer hesitates, and directly uses up all 84 invention points at once, exchanging 42 catties of sweet potato No. 7.

The next day, after breakfast, Tianqi couldn't wait to summon Xu Guangqi into the palace.

"Xu Qing, open it and take a look." Apocalypse said, pointing to a sack in the temple.

Xu Guangqi was stunned for a moment, he didn't know what Banzai was selling, so he hurriedly stepped forward, opened the mouth of the sack, and was shocked when he saw the contents inside: "Sweet potato." ”

Sweet potatoes are called by several names in Daming, such as sweet potato, sweet potato, etc., and Xu Guangqi is used to calling it sweet potato.

There are also the names of corn and potatoes, which were handed down from his "Complete Book of Agricultural Administration".

Although this great agricultural masterpiece has not yet been officially published, Xu Guangqi's research on agriculture has lasted for decades, and the book can basically be finalized, so he is already familiar with the relevant knowledge.

Among them, he is very familiar with sweet potatoes, and he has also compiled a "Sweet Potato Shu", which records in detail the characteristics and planting methods of sweet potatoes.

Xu Guangqi recognized at a glance that this bag of sweet potatoes seemed to be a little different from the sweet potatoes he had seen before, and the color and size of the skin were different.

Tianqi didn't sell it, and said directly: "Xu Qing, this is a sweet potato seed that I got by chance, and the yield is higher than that of my Daming today's sweet potato." ”

"Therefore, I hope that the Engineering Institute can cultivate more improved varieties as soon as possible, and then promote sweet potatoes in the north to solve the urgent need of the people who are hungry."

After hearing this, Xu Guangqi couldn't help but be overjoyed, he had long hoped to promote sweet potato planting, but because of his limited personal influence and the difficulty of changing people's planting habits for thousands of years, the promotion of sweet potatoes was not smooth.

If there were better seeds, and there was a decree from the imperial court to support it, it would be much simpler.

Thinking of this, Xu Guangqi hurriedly responded excitedly: "Yes, long live." ”