In the blink of an eye, the farmer and the tenant began to work in the field. In the Huangtian of the R&D Division, there are more than a dozen farmers, in teams of two, who plough the fields with oxen and plough the fields, and the 50 acres of land are quickly plowed. Then he sprinkled the grass ash and soil manure in the field. In the middle of February, the sweet potato is put in a greenhouse to keep warm, put the brazier to keep warm, cover the straw curtain at night to keep warm, and carry out the seeding, a load of sweet potato seeds can raise 20,000 seedlings, can plant four acres of fields, the existing more than seven loads, can plant 30 acres, and then it is to raise seedlings, promote seedlings, and wait until the sweet potato seedlings grow to 25 cm when they can be planted.

This year, the temperature is on the high side, and the seeds can be planted at the end of March. Then there is land preparation, deep tillage can thicken the soil layer, improve soil aeration, and help the growth of potato pieces. The depth of deep ploughing is generally 30 cm. It is better to use ridge cultivation for plots with good soil fertility, but sandy land with thin soil fertility and large sand content should be cultivated with flat or low ridges. It's much easier to plant potatoes, just cut the potatoes into pieces and plant them in the ground, and also plant them with sweet potatoes at the end of March. At that time, Zhenzong led the ministers to come to help the plow and sow seeds. Corn can be planted now, now only one acre.

During this time, Meng Ming went to his farm and arranged for people to plant 100 acres of cotton and 1 acre of corn. Five water wheels with a diameter of six meters and three water wheels with a diameter of five meters have been installed. Meng Ming's weaving factory was also built, covering an area of 15 acres, with five workshops and machines, including 50 looms and 30 ginning machines, all driven by water conservancy; A large slingshot can only be used for bouncing, which can only be artificial. Finally, after debugging, a total of ten pieces of cloth were woven, which was more than ten times more efficient than manual labor. Meng Ming rewarded the relevant people again. Finally, I took a look at the situation in the workers' dormitory.

Finally, on the day of the trial planting of potatoes and sweet potatoes, I saw colorful flags in the field at this time. The officials of the Ministry of Rites were arranging the scene, a high table was built in the north and south, and a large table was placed for the offering table, and there were offerings, and a large three-legged incense burner about one meter high was in front of it, and the smoke was filled. After a while, Luan arrived, and the officials of the five main posts of the DPRK and China also arrived, and the cars were parked outside. I saw that the king of the Ministry of Rites had taken him to the altar. The emperor offered incense, recited the sacrificial text, sacrificed to the god of Si Nong, prayed to the heavens, blessed the Great Song Dynasty with smooth wind and rain, abundant grains, and the people without the suffering of famine. After the ceremony, the emperor moved to the ground, led by Li Di, the emperor helped the plow, and ploughed the land. Then plant a sweet potato seedling and a small potato cube into the soil. The remaining seedlings are planted normally, and there are more farmers, so they can be planted in one day today. Zhenzong thought that the name of the potato was unpleasant, so he gave the name Tianxi taro, and at the same time gave the sweet potato the name Tianxi potato. After planting, it is much more free, that is, field management, just waiting for the harvest, spring corn and Tianxi taro (potato) in the seventh month of the lunar calendar, Tianxi potato (sweet potato) in mid-August.

The large-scale promotion of sweet potatoes in the Qing Dynasty directly contributed to the emergence of the prosperous Kangqian era and alleviated the suffering of famine for the people. Sweet potatoes have the characteristics of drought tolerance, barrenness tolerance, and huge yield. Since then, whenever there is a disaster there, the local officials will introduce sweet potatoes to "save lives", the cultivation of sweet potatoes in China, with the passage of time is expanding day by day, during the Qianlong period of the Qing Dynasty, the Qianlong Emperor is "the province of Guang persuasion planting", China ushered in the climax of planting sweet potatoes, became the staple food of the society at that time, so that people can eat enough, as the population of the society at that time increased greatly.

In the world of the previous life, in terms of potatoes, the United Nations has long listed potatoes as the four major staple foods along with corn, wheat and rice. Potatoes were the main food of developed countries in the West 50 or 60 years ago. Because it has great potential to increase production, high nutritional value, good taste, shelf life, long industrial chain, and strong processing and conversion capacity (which will be explained separately later). Some netizens said that potatoes can only be used as vegetables and have a bad taste, one is because the quality of potatoes in China is degraded and there are few varieties, and the other is because the understanding of potatoes is too one-sided. The growing characteristics of the soil are well suited to those where land is limited and labour is abundant, and this condition is characteristic of most developing countries. Compared to other major crops, potatoes can produce more nutritious food in conditions with less land, harsher climates, and drier conditions. This is more important than other crops in China, where water resources are becoming increasingly scarce.

As for maize, it is of great significance, although it is lower than the yield of sweet potatoes and potatoes, it is more than twice as high as the yield of corn in the Great Song Dynasty, and it is also characterized by the use of barren land, and the total grain output is greatly increased, and it can live innumerable.

In less than ten years, all the people of the Great Song Dynasty will be able to eat sweet potatoes, potatoes, and corn, and it is precisely because of their spread that the people of the Great Song Dynasty will be much better than the previous dynasties in the year of the Great Famine, and the number of people who starve to death directly due to the disaster year will be greatly reduced, in other words, they can save thousands of Great Song people.

After trying to plant Tianxi taro (potato) and Tianxi potato (sweet potato), Meng Ming will be fine. The imperial court also took Meng Ming as young and focused on his studies, and accompanied the king of Shouchun County to study. removed his position as Si Nong Si Cheng and was replaced by Lu Yiqing. Lu Yiqing was promoted four levels in a row, and his official rank became a member of the fourth rank. Meng Ming was unofficial and light, ready to plan for the future. Meng Ming took stock of his family, there was a bookstore, a weaving factory, and a farm with 2,000 acres of fertile land. It's also a rich family. In addition, the Tokyo Morning Post was spun off from the bookstore and became an independent newspaper.