When he entered the Li family's residence, Su Jian followed Ma Zhou all the way. The people Su Jian saw in the Li family gave Su Jian another level of understanding of Li Zhan.

Su Jian really didn't know that there was a big figure like Li Zhan hidden in Chang'an City.

Su Jian was very grateful at this time. That night, he had his attitude towards Gao Hu!

"Young Master... The Crown Princess's father is here." When he came to the hall, Old Ying whispered in Li Zhan's ear.

Li Zhan looked at Su Jian behind Ma Zhou with a smile, and then Li Zhan stood up and smiled and said, "Shishou Minister Su is here too... Come... Come... Come... Come...!" Li Zhan waved to Su Jian and said to the others on the table: "The prince's father-in-law is here, but the prince has not arrived yet, so let him sit next to me."

Su Jian was flattered after hearing this because the ones sitting at the same table with Li Zhan were basically the big guys he had ever thought about and never had contact with.

With a hint of excitement, Su Jian came to Li Zhan to sit down, and followed Su Jian and heard Li Zhan say intoxicatedly: "Shishou Lord Su is free, everyone here is his own people. If Mr. Su can come here, then we are all our own people."

"Thank you, young master..." Su Jian quickly raised his wine glass.

That night... Before the prince arrived, Su Jian drank too much because the bad guys on the table toasted Su Jian one by one. Su Jian was overjoyed. He didn't dare to play tricks like Li Zhan, so he really drank one by one.

You should know that Su Ya has a bad alcohol tolerance, but it won’t work when the tenth cup is gone.

Fortunately, at this time, the prince brought the princess and the prince's concubine to come. As soon as the princess Su Wan came, she saw her father's unconscious appearance.

Li Chengqian laughed and said, "Brother... Why did you drink my father-in-law like this?"

Crown Princess Su Wan hurried to her father's side, and Li Zhan smiled and said, "Help him go to the guest room to rest. Today, they are all his bosses. It's okay for him to drink a little more."

"Nu Nu knows..." Su Wan responded quickly, knowing that the Crown Princess' claim to be the palace, but Su Wan claimed to be Nu Nu in front of Li Zhan. Here we can see that Su Wan respects Li Zhan.

"Well...go quickly...!" Li Zhan nodded with a smile.

Then he saw Su Wan taking Su Jian away. As soon as Su Jian left, Li Chengqian sat next to Li Zhan. At this time, Changsun Wuji asked: "Crown Prince... How is the transfer of grain from the Ministry of Revenue?"

Li Chengqian nodded and said, "Uncle, don't worry... most of it has been completed, and it should be possible to complete it tomorrow."

"Hey...!" With a sigh, Niu Jinda said with some discomfort: "I don't know how many people will die this time."

"What's wrong..." Li Zhan didn't know what happened.

Ma Zhou said at this time: "Young Master... Just yesterday, Chang'an received a report that the severe drought in Hebei has affected hundreds of thousands of victims and land. His Majesty ordered the distributor to allocate food to the disaster area.

However, this is just a way to treat the symptoms but not the root cause. Grain can be allocated for a while, but drought will continue. As the drought occurs, spring and summer seeds will be planted without harvest."

"Hey... I said... you civil servants really have no way to do it. Think of a way to save the victims...!" Niu Jinda looked at Changsun Wuji and Ma Zhoudao.

But at this time, Changsun Wuji and Ma Zhou could only lower their heads bitterly.

Not to mention the drought in ancient times, even modern droughts cannot be solved. Many people say artificial rainfall, but if humans want artificial rainfall, they must have sufficient conditions.

Generally speaking, natural precipitation not only requires certain macro weather conditions, but also needs to meet the microphysical conditions in the clouds. For example, there must be large water droplets in warm clouds above 0℃; there must be ice crystals in cold clouds below 0℃. Without this condition, no matter how good the weather is and the conditions in the clouds are, it will not rain.

However, in natural circumstances, such microphysical conditions are sometimes not met; sometimes, although they are met, they are not sufficient.

From this we can see that the former does not produce precipitation at all, while the latter has very little rainfall.

Then, humans can use the following conditions to sow dry ice nuclei into the clouds, thereby creating a condensation or condensation ice-water transformation process in the clouds. Here, the natural collision process of water droplets can generate rainfall or increase rainfall.

In this way, artificial rainfall can be achieved. However, if there are no sufficient conditions, even if artificial catalysis is performed, there will be no precipitation.

How did ancient monarchs solve the problem of drought?

1. Repair water conservancy, encourage people to use bucket trucks, overturn the truck to draw water, and drill wells

2 Issue a decree to commit crimes and organize a ceremony to beg for rain.

3 Close the state government, dispatch officials, and prepare for relief to the disaster-stricken people

4The only thing left is to leave fate

There is really no other good way. According to historical records, droughts in our country are frequent.

Among historical books, local chronicles, palace archives, inscriptions, engravings and other historical materials of the past dynasties.

From 206 BC to 1949, a total of 1,056 droughts occurred. From the 16th to the 19th century, severe droughts with a drought range of more than 200 counties occurred in 1640, 1671, 1679, 1721, 1785, 1835, 1856 and 1877.

In 1640 (that is, the 13th year of Chongzhen in the Ming Dynasty), the drought continued to be affected by drought for 4 to 6 years. In the arid areas, "the bark of the bark was eaten up and people ate each other"; in 1785 (that is, the 50th year of Qianlong in the Qing Dynasty), 13 provinces suffered drought. According to records, "the grassroots and tree bark were searched and eaten, refugees were transported on the road, starving people were full of the wild, and the dead were buried"; in 1835 (that is, the 15th year of Daoguang in the Qing Dynasty), 15 provinces suffered drought, and there were records that "the bark of the grass roots and tree bark were eaten on the road, and the people ate Guanyin powder, and there were many dead people."

Drought was synonymous with death in ancient times.

"You guys... are useless at all." Niu Jinda suddenly started to cry. Here I would like to explain why Niu Jinda cried because his family members starved to death. When everyone thinks of a severe drought, many people have no food. Niu Jinda thinks of his family, so he feels sad for a moment.

Seeing Niu Jinda crying, Cheng Yaojin on the side also shook his head and said, "Your Majesty has already thought about issuing a self-criticism!"

"Self-Sinning Edict" is an oral or document in which emperors in ancient times had problems in the court, the country suffered natural disasters, and the regime was in danger, and they reflected on themselves or reviewed their own faults, and the fault occurred.

In the second year of Zhenguan (628 AD), drought and locusts arrived. The edict said: "If you make the grain in the year is prosperous and the world is peaceful, and you can move the disaster to save all the nations, you will be willing to do so." Li Shimin would rather go to God to bring all the disasters to him alone for food.

Li Zhan was moved at this time: "But Your Majesty has issued a self-criticism edict."

"What can I do?" Li Chengqian curled his lips and said, "The drought is destined to kill countless people. Food cannot be planted at all. Without food, people will starve, and the father can only blame himself."

Suddenly, Li Zhan looked at Li Chengqian and said, "As long as a food that can withstand drought, and the amount is large and the control is full, the drought will be solved."

"Yes...!" Changsun Wuji nodded and said, "But no matter whether it is wheat or rice...their demand for water is too great to be planted in arid places."

"Not necessarily...!" Suddenly, Li Zhan looked at Li Chengqian with a smile and said, "Tell me, how many acres of sweet potatoes have been planted in your royal farm?"

"Clam...sweet potato...!" Li Chengqian was stunned.

.................................... "Sweet potato..." Li Chengqian was stunned just now, and Xiao Douzi on the side immediately responded: "Yes... Mr. Li, sweet potatoes are very good in the imperial farm...!"

"You have been responsible for it?" Li Zhan looked at Xiaodouzi.

Xiao Douzi nodded immediately and said, "Yes, His Highness the Crown Prince has emphasized the instructions of me, and I have to take time to go to the imperial village almost every month."

"Then tell me how many sweet potatoes are in the imperial village now?" Li Zhan asked with a smile.

At this time, Xiao Douzi thought hard and said, "It's about 180,000 kilograms..."

After Xiaodouzi finished speaking, Li Zhan said slightly: "There are still a little less than 180,000 kilograms. Maybe the spring seeds cannot be achieved, so they should have to move to summer seeds."

"What is sweet potato?"

Just as Li Zhan and Xiaodouzi were talking nonstop, Changsun Wuji asked?

At this time, Li Zhan laughed and said with a hint: "Sweet potato is a kind of grain. It is not only high-yield, but also highly adaptable and drought-resistant. In addition to being an staple food, it is also an important raw material for food processing, starch and alcohol manufacturing industries. Stems and leaves can also be eaten.

No matter the land is barren, "Dozens of stones per acre are twenty times better than planting grains""

"Really or false..." Li Zhan's words made everyone present look horrified, "Does of stones per acre are twenty times better than planting grains." This is a very terrible sentence.

However, Li Zhan did not answer everyone's questions, and Xiao Douzi on the side immediately bowed and said, "Dear nobles... Mr. Li did not speak loudly, but said it was small. The sweet potatoes we grow in the imperial village may be relatively fertile, with three thousand kilograms per acre."

"One acre of three thousand kilograms..." Everyone present lost their composure again.

Li Zhan said: "That's because the land of the imperial village is fertile. If you reach a dry place, one thousand to two thousand kilograms per acre will be the limit."

"How many seeds can these 180,000 kilograms of sweet potatoes produce?" Changsun Wuji asked immediately.

"I've done an experiment..." Li Zhan said: "A hundred kilograms of sweet potatoes can be planted in one acre!"

"I understand..." Changsun Wuji smiled and said, "If 180,000 kilograms, you can plant 1,800 acres. At that time, you can harvest 5,240,000 kilograms... and then you can promote it to Hubei in summer... In that way, Hubei will at least have autumn harvest and can survive the severe cold."

After saying that, Changsun Wuji looked at Li Zhan and said excitedly: "Zhan'er... do you know that your sweet potato can save hundreds of thousands or even millions of lives."

"Wrong...!" Just when Changsun Wuji was excited, Niu Jinda on the side stood up and said, "If sweet potatoes are really like this, then Brother Zhan will only save a place in Hubei. He can make everyone in the Tang Dynasty eat enough.

So Brother Zhan saved the lives of millions of people in the Tang Dynasty. Brother Zhan, I, the old Niu, took the people of the world and kowtowed to you." After saying that, Niu Jinda bowed to the head at that time, and Li Zhan couldn't stop him even if he wanted to stop him.

However, just when he wanted to go over and pull Niu Jinda up, Niu Jinda suddenly started crying, crying while complaining: "But why didn't you show up with sweet potatoes earlier? If that's the case, my father, my mother, and my family won't have to die.

Brother Zhan... Why didn't you show up with sweet potatoes earlier? Do you know, do I miss my father and my mother too much??"
Chapter completed!