The rice that Wu Yuanqing said is the famous Champa rice in later generations.

Of course, although it is called Champa rice, in fact, Champong rice is not a unique rice of Champong, nor is it the rice grown in Champa that is called Champong rice. It is the common rice in the Indochina Peninsula.

That is, the location of Vietnam, Laos, Myanmar, and Cambodia in later generations.

The reason why it was called Champa rice in later generations is because this rice was transmitted to China from Champa. Champa rice was introduced to China around the time of the Northern Song Dynasty in the fifth dynasty.

The yield per mu of Zhancheng rice is very high, it is a rare high-yield crop, and it is also very drought-tolerant, adaptable, will not choose the land to grow, it can be planted in the rainy and high temperature Indochina Peninsula, in Lingnan, Jiangnan can also be planted, and it can also be planted in the north where there is a shortage of water and little rain.

Again, the maturity time of Champa rice is still short, it matures early, and it only takes more than 50 days from planting to harvesting in the Indochina Peninsula. So the people there suffer really very little from the famine.

Later, the female prime minister of a country in Indochina was once accused of rice and was fined a huge amount by the authorities.

The reason for this is that this small country is the world's largest exporter of rice. A country that is not too big but ranks first in rice exporters, which undoubtedly shows that the country's rice production is quite high, otherwise it would not be the first exporter. The high yield of rice means that the yield per mu of rice is high, otherwise the place is not large, and the rice output will definitely not be high.

Then the rice production is high, the natural price is not high, at least in the country must be oversupply, the price of rice is not high, the income of farmers is not high, so when the female prime minister was in power, on the one hand, in order to increase the income of farmers, but also to consolidate the foundation of her ruling by the government to buy rice from farmers at half a price higher than the market price, on the other hand, she also used the idea of hoarding, trying to monopolize the international rice market by virtue of the country's status as the world's largest rice exporter, Push up the price of rice in the international market so that the country can profit from it.

But neither of these ideas came to fruition, because several other Indochina countries relaxed export restrictions on rice, which led to a drop in the price of rice, and the state lost money or lost a lot of money in this acquisition trick. Then the peasants who sold the rice to the state did not get any good, because the state did not buy rice with money and goods, but first purchased it, and then settled it after a period of time, but due to the decline in the price of rice, the rice purchased by the state was not easy to sell, and the export volume fell sharply, resulting in not enough money to pay the peasants, and there was a large-scale arrears, and the peasants were full of complaints.

Therefore, the female prime minister is two-pleased, the peasants and peasants hate her, it is the country and the country that hate her, and finally she stepped down gloomily and was liquidated by her successor.

The topic is a bit far away, and to say that Champa rice is indeed a very high-yield rice seed, because these Central and Southern countries are all planted in this way, even if it is continuously improved later, but it is also because their own rice varieties can be continuously improved to make their yields higher, so that several small countries in the Indochina Peninsula can monopolize international rice exports in later generations, and they can manipulate export prices by restricting exports.

As soon as Champa rice was introduced into China, it was rapidly promoted, and Lingnan, Jiangnan, and southern China were basically planted with Champa rice.

According to records, Song Zhenzong sent envoys to Fujian to collect Zhancheng rice due to drought and lack of water in the Jianghuai and Liangzhejiang regions, as many as 30,000 Hu, which were promoted in the Yangtze River, Huaihe River and Liangzhejiang regions, and ordered the transfer envoy to post a list of words"...... Compared with the Chinese, the rice has a long ear without mangs, and the grain difference is small, and it is born without choosing the place." Pen, fun, and www.biquge.info

Outstanding excellent qualities have made it the dominant food crop in the Yangtze River Basin, and with the different geographical environments, a large number of new varieties have evolved one after another. Therefore, Champong rice has a profound impact on the rice farming system in the Yangtze River Basin.

Wu Yuanqing attaches great importance to Champa rice, because the previous corn and potatoes are drought-tolerant crops, but they are not waterlogg-tolerant.

Feel free to grow corn in the south, potatoes are not very suitable for planting, but China is so big, and Datang is so vast.

From north to south, from east to west, thousands of miles, how many latitudes and longitudes have been crossed. Temperate, subtropical, tropical, all kinds of environments.

Datang is so big that the crops planted are different from place to place, most of the northern ones are not suitable for the south, and most of the southern ones are not suitable for the north.

How difficult it is to find a crop that can grow in both the north and the south, let alone a high-yielding crop.

Potatoes and corn can't be done, of course, drought-tolerant, short-maturing time Champa rice can also be done, but in the north, at least the yield is higher than that of the native rice in the north.

In this way, it is enough for Wu Yuanqing, not to mention that with Zhancheng rice, the situation of low grain production in the south can also be greatly changed.

With potatoes and corn in the north, Champa rice in the south, and pumpkins, which are both grain and vegetable crops in both the north and the south, the wish of the Tang people to basically eat enough is almost possible.

After arranging Zhao Heng's work, Wu Yuanqing rushed to Honglu Temple again, and after Wang Xuance saw Wu Yuanqing, his performance was no different from Zhao Heng.

Wang Xuance was also promoted, and the same official was promoted to three levels. This position is a matter of ushering in the send-off, and all tributes, feasts, and send-offs are all predetermined. Distinguish their places for their ministry. All the chieftains of the canal will be offered to them. If you die of illness, you will be given something to them. Returning to Tibet, it will be accompanied by the festival of thanks.

It is the most suitable for Wang Xuance, who originally sent Tianzhu in history, who let this guy be able to speak well and slip his mouth.

As for Shangguanyi's side, Wu Yuanqing was not easy to interfere with, so he had to ask Li Chengqian to come forward to find Kong Yingda to help him get promoted by two levels and make him a school secretary.

This is not an official position with Shangguanyi's current straight bachelor's school book, and his current school secretary is just a name, and the actual official position is the school book of Hongwenguan, and there is no Lang.

The school book is from the nine products, and the school book is from the nine products.

As for Li Yifu, Wu Yuanqing didn't care about him, as soon as he came to the province of Menxia, under the emperor's nose, Wu Yuanqing didn't want to commit taboos, and secondly, a guy who was destined to be a traitor Wu Yuanqing would not help him get promoted, this kind of bad kind is best if it is rotten at the bottom, the higher the official is promoted, the more bad things he does, and the more people are harmed by him.

Asking someone to help is a favor, and owing a favor is to be repaid, and the debt is as big as the sky, not to mention the prince's favor.

No, I just asked Li Chengqian to do a little favor, and within two days, Li Chengqian came to the door and asked Wu Yuanqing to help him.