"Third brother, third brother, can you eat the sugar gourd?" Jin Yang licked his little lips at this time and came over from the outside.

Obviously, for these little guys in Jinyang, they don't care about any high-yield food at all, what they care about is eating.

"Third brother, take a look." Li Ke stood up and walked out, took the rock sugar gourd hanging back from the outside, knocked on the sugar coating connected outside, and when the sugar coating fell crisply, Li Ke nodded with satisfaction, and directly took out a hawthorn and handed it to Jinyang: "You can eat it, go ahead." ”

"Wow! It's ready to eat! Jin Yang immediately stretched out his tongue curiously and licked it, and when the sweet taste came in, Jin Yang's little eyes lit up.

"Third brother, third brother, I want it too." Gao Yang and Cheng Yang also rushed over.

Li Ke gave them one by one, and everyone had them, except for Li Chengqian.

Li Xiang, who didn't even have his teeth, was holding one and gnawing on it, but he could only lick the sugar coating outside, and it was impossible to move at all.

"Big brother, you can't eat it, you have to quit sugar." Li Ke said with a smile, no matter what type of diabetes Li Chengqian is, it is definitely right to quit sugar anyway, and then exercise properly, you can just let him pull pull-ups without exercising his legs.

When Li Chengqian's symptoms disappear, there will be no problem with eating normally.

"You're not going to explain this? How many seeds does it have? Li Shimin ate a rock sugar gourd, and he was also eye-catching, this kind of sweet food is not available in Datang at all, but it looks more like it is for children, so Li Shimin also holds his own identity and tastes it.

"What we just ate was the seeds." Li Ke shrugged his shoulders.

"What? You rebel! As soon as he heard this, Li Shimin almost died of anger! You eat the high-yielding seeds?!

"Oh, Dad, don't be angry, I haven't finished speaking, its rhizome is the seed, but these potatoes have been injured, and I will definitely not be able to plant them until next spring. It's probably close to 200 pounds of seeds. Li Ke said.

"So much?" Li Shimin was stunned for a moment, after all, it is impossible to use so many seeds for conventional wheat and the like.

"Because it needs a healthy tuber with one or two healthy germs, it's time to cut it into pieces."

"This year I planted about two acres of land, harvested a total of 6,000 catties of potatoes, next year can plant about 30 acres, and after next year's harvest, it can begin to be promoted in the name of people around Chang'an." Li Ke said.

There is no way to keep seeds, and Datang has no biological industry, so these seeds can only spread gradually.

But even so, its speed is not slow, according to the minimum guarantee of 3000 catties per mu to calculate, an acre of land can be planted about 15 acres, next year's output of potatoes can be planted 450 acres. In about five years, the number of acres of these seeds can be expanded to millions of acres.

The number of seeds can be continuously expanded with each additional year.

On the contrary, sweet potatoes can be propagated with stems and vines, so the expansion rate is much faster than potatoes, but sweet potatoes are different from potatoes in that they cannot be eaten as rice, and potatoes must be promoted first.

"These two crops are not only highly yielding, but also have a great advantage." Li Ke said with a smile.

"What?" Li Shimin asked.

"Drought-tolerant, not demanding on the land, some poor quality sandy soil, barren land can be planted, although it affects the yield, but even if it affects the yield, they are much higher than the yield of ordinary wheat and corn. Of course, they can be used as auxiliary food for Datang food, and they cannot be used as staple food, but their particularity means that in many barren areas, it is easier for people to live. Li Ke said.

In fact, these modern varieties are not only cold-tolerant, but also insect and salinity-tolerant, and so on.

And in fact, it can really be regarded as a staple food, at least the Europeans used to feed many people with potatoes.

"In the future, such an important thing, let's talk about it first!" Li Shimin glanced at Li Kedao angrily.

"Hehe, no problem, but in fact, it's not that I don't say it, but I need to confirm the yield of this crop, and the other point is that I have to borrow my personal strength to promote it in the early stage, otherwise, I'm afraid of causing some calculations by people with intentions." Li Ke shrugged his shoulders.

"Who dares? I think he has a few heads to drop. Li Shimin sneered and said directly.

Li Ke thought about it, as if no one dared to do this, because if this thing was spread, it would be more powerful than the ones Li Ke had made before, and whoever really blocked it would die.

"Well, next year, depending on the situation, I will select the best cultivated land around Chang'an City to breed first, and when Zhenguan is eleven years old, it can be transported to all roads in the world for planting." Li Ke thought for a while and said.

"According to what you said, eleven years of Zhenguan is not much, right?" Li Shimin was a little puzzled.

"Zhenguan can plant more than 6,000 acres in the eleventh year, and the land near Chang'an is enough, but according to my idea, it is distributed in different provinces across the country to plant, giving priority to the provinces that are more prone to drought, and distributing some potatoes evenly in each province, so that the speed of diffusion is faster, if it is concentrated together, it can be planted more than 100,000 mu in the twelfth year of Zhenguan, and so many seeds will be transported out at that time, but it is easy to be damaged." Li Ke roughly explained.

Anyway, it is an exponential growth, if the base is divided at the beginning, it is conducive to the later diffusion, otherwise it will be planted in one place, and it will consume a lot of manpower and material resources just to transport seeds in the middle and late stages.

"Yes, I will write an edict for this matter in a while and hand it over to Wei Zheng to handle, such an important matter, he must be very attentive to supervising Li Tai." Li Shimin obviously knows who to do this matter with the most care.

"Just come and see this dad." Li Ke shrugged his shoulders.

"Hmm...... What you said is right, it just happens that the matter of collecting data such as war horses in Jiuyuan County and other places has also been handed over to Li Tai to do a good job, as well as the summary of the disaster situation in various places, and the statistics will also be carried out this year, and they will all be handed over to Li Tai, I originally wanted to hand it over to the three provinces to be responsible for this matter after the year. Li Shimin thought about it, and simply added some burden to Li Tai.

Every year, there are a lot of trivial things that need to be done in the Tang Dynasty, and Li Shimin is also annoying about these things, but they can't be completely handed over to the people below to do, for example, Zhenguan has to summarize some disasters in the ninth year.

These summaries not only include the disasters of previous years, but also the number of local households, the number of fields, and the specific conditions of the disaster.

Because of the disasters at the beginning of Zhenguan Year, Li Shimin is very concerned about these things, so all localities have to summarize and report, and then Li Shimin personally handles it, almost every year.

In the past nine years of Zhenguan, on the whole, it was actually a bumper harvest year, but the harvest year was not a bumper harvest in all places, and these situations had to be counted, and Li Shimin had to appoint and dismiss some officials who were good at this aspect of things according to these circumstances, so these things were very cumbersome and often lasted for a month or two.