Wei Renshi ignored Li Chun's suspicions, as if he hadn't heard Li Chun's words, and continued: "This kind of Champa rice has three characteristics, one is extremely drought tolerant, and the other is very adaptable; It is almost possible to "be born without choosing a place"; Third, the growth cycle is short, the more humid and hot the climate, the more times a year can be planted, like the land of Annam, you can plant three seasons a year, and harvest three seasons that year. To the north, I am the southern part of the Tang Mountains, and it can also be three seasons a year. Further north, in the south of the Yangtze River, it may be two seasons a year. Guannei, Longyou and other roads, can be a season a year. Further north, and even in the eastern Liaodong region, it can also be a season a year. ”

Li Chun's face changed slightly when he heard Wei Renshi's words, but he listened to Wei Renshi continue: "The yield of this rice seed is higher than the grain grown in Datang today, and it is conservatively estimated that if there are three seasons a year, one mu of land can produce seven or eight stones of grain, and in two seasons, one mu of land can produce five or six stones of grain, which is one season, and it can also produce as much as three or four stones of grain per acre." Moreover, because its requirements for land are not very high, it can be widely planted in my Datang. ”

Hearing this, Li Chun's face had changed greatly, and he stared at Wei Renshi solemnly, he knew Wei Renshi, and knew that Wei Renshi said it so solemnly, it would not be nonsense. However, it is unbelievable that three seasons of grain can be grown in a year.

Li Chun stared at Wei Renshi with solemn eyes, and Wei Renshi continued: "Those local tribes in Annam are very backward and incivilized, and the farmers in the surrounding kingdom cultivate extensively, and there is no such thing as irrigation. Its cultivation is also, only to break the block is no longer deep, but to plant in the field, not to mention the seedlings. After planting, drought does not seek water, waterlogging does not dredge, there is no dung soil, and it is not tired, and it is left to the sky. But even so, the people of the Ring Kingdom never knew what the word famine was. ”

Li Chun's expression had changed from shock to sluggishness, and his eyes widened and stared at Wei Renshi, always feeling that Wei Renshi would suddenly say that these were all made up by me. But Wei Renshi's expression was flat, and he slowly opened his mouth as if he was reciting, and spit out words that made Li Chun feel as if his heart was suddenly twitching rapidly, and the blood all over his body seemed to be rushing up violently.

"Brother Renshi......" Li Chun stood up violently, felt that his lips were dry, subconsciously stretched out his tongue and wiped his lips, and asked in a trembling voice: "What did Brother Renshi say...... But really? ”

"Naturally, every sentence is serious!" Wei Renshi nodded.

He's sure, he's sure.

In history, during the Han Dynasty, it was mentioned that there was an anecdote about planting double-cropping rice in Lingnan, but it was regarded as a rumor and no one believed it.

At the end of the Tang Dynasty, Champa rice was introduced to Fujian along the maritime trade, and the Song Dynasty attracted the attention of the emperor, and then it was promoted throughout the country, and quickly popularized, greatly increasing the output of grain crops.

The sentences are serious - four words, like four heavy hammers, smashed into Li Chun's heart, making him suddenly unable to breathe, his eyes seemed to be black, and his legs seemed to be soft. As a royal man and the eldest grandson of the emperor, among the people present, no one could know the meaning of these four words better than him.

"Where did Brother Renshi get that?" Li Chun took a deep breath and calmed his mind, but his fingers, which were still excited, trembled slightly.

Oh, my God! If you can find this kind of rice seed, if this rice seed is really so magical, if it is because of yourself, you can make this kind of rice seed grow everywhere in Datang, and the people of Datang are not short of food, then ...... Not to mention that the throne must be his own, but also how to write great achievements on the sweat of future generations!

Li Chun's eyes were full of shock, doubt, and ecstasy...... All kinds of emotions converged and emitted a bright light, staring at Wei Renshi's eyes.

"I once got an old book that said that in the Han Dynasty, there was a case of rice growing twice a year in the Lingnan region. I kept an eye on it, and then one pursued it. Wei Renshi said to Li Chun: "Later, after I read and explored in many ways, I finally learned that there is really this kind of rice seed, which is in the former Linyi Kingdom and the current Huan Kingdom. In fact, this rice seed is not only found in the Kingdom of Huan, but also in the smaller countries around it, as well as in those places further south. And that land, which is also the most suitable place for planting this kind of rice, can be harvested three to four times a year, and this kind of rice is planted there, from planting to harvesting, it only takes about 50 days. And that piece of land is no smaller than the land of the Central Plains. ”

Wei Renshi could clearly see that Li Chun's pupils suddenly tightened.

"Go, go back! Brother Renshi, come with me to the East Palace! Li Chunmeng turned around, said as he strode back, took a few steps, and then turned back to everyone and said, "Let's go, hurry up!" ”

Seeing Li Chun's solemnity, everyone also heard Wei Renshi's words, and naturally put down their binoculars.

I've been looking here for a long time, and I've seen everything I want to see, so I've hurried down the mountain.

Everyone successfully avoided the patrolling soldiers, and when they went down to the foot of the mountain, Li Chun couldn't wait for the subordinates to pack up their things, and even if he left the servants to clean up, he let everyone go back in the carriage first.

Back in Chang'an City, Li Chun went to the East Palace with Wei Renshi.

"Brother Renshi, are you telling the truth?" Li Chun settled down and confirmed.

Wei Renshi nodded and said, "It's true, but there is no physical evidence, and it can't be convincing after all." Later, His Royal Highness the Crown Prince will definitely be suspicious, and when the time comes, Prince Chun can suggest that he first send an elite scout to explore this kind of rice seed in the Ring Kingdom, to see how it is in the Ring Kingdom, whether it is as I said, if it is really as I said in the Ring Kingdom, then collect some rice seeds and bring them back, and find places similar to the Ring Kingdom in my Tang Dynasty, such as Lingnan, Qiongzhou and other places to try to plant them, to see how it grows. Then slowly move the pilot north to see how well it grows in the north. ”

Li Chun nodded and said, "Okay!" ”

The two entered the East Palace, and soon met Li Yu.

Li Chun asked Li Yuping to step back, Li Yu was a little strange, and asked, "But what's the matter?" Must it be kept secret? ”

Li Chun saluted and said solemnly: "Aya, the child heard Brother Renshi say that there is a rice variety called Zhancheng rice in the Huan Kingdom, which can be planted and harvested three times in a year, and the further north it goes, the fewer times it can be planted in a year, but there is at least one harvest in one season. ”

"What?!" Li Yu frowned and asked, "Where in the world is there such a rice seed, if it can really be planted and harvested three seasons a year, then the people don't have to suffer from lack of grain." ”

Li Chun repeated Wei Renshi's words to Li Yu, and then said: "With the child's understanding of Brother Renshi, Brother Renshi will not talk nonsense about this kind of thing. Since it has been said, it must be true. Therefore, the child wanted to ask Aya to pay attention to this matter and try to verify it. ”