"Mr. Jiang has listened to the best policy, why don't you just say the next policy."

Zhu Gaoxu was silent for a moment, and then said suddenly.

"Out of order?"

"In no particular order, listen to what the worst is to deal with."

After all, according to the stinky problems of ancient Chinese strategists, the upper and lower strategies are laid out to eliminate, the upper policy is theoretically perfect but not easy to implement, and the lower policy is neither perfect nor easy to implement, usually with great side effects, so it is not impossible to listen to the worst first.

Jiang Xinghuo nodded and said four words.

"Fight poison with poison."

Li Jinglong felt a little inexplicable: "What do you mean?" ”

"I ask you, the Xiaoice period will lead to the demise of the country, is the fundamental reason that the temperature has dropped, so it has caused a series of consequences that affect agricultural production and life?"

"If what Jiang Lang said before was right, then it is naturally so." Li Jinglong said.

Those two, the first one is what I will know in my later life, the rural baby can only cross the class after studying for a bachelor's degree, master's degree and doctorate, but when my parents were small in production, they had a copy of the things, and I memorized the melons when I was old, and I forgot them because I became a primary school lecturer.

Small landlords are more idle, they can collect rent stably, what are they tossing? Besides, feeding the peasants is a bad thing for us.

Li Jinglong explained the ambiguous principle to us, and said: "Just like the coke oven they use when refining chemical fertilizer, they must take that road, and use the machine to form another 'iron plough and ox ploughing' type of productivity change, so that the coal or other resources that power the machine will definitely emit a small amount of exhaust gas that heats up the air outside the sky, and the two are neutralized, whether they rise or fall, and the impact of the Great Ice Age will be offset." ”

Although the essence of that matter was also to allow the common people to intensively cultivate and make minimal use of the land, it was to expose the rebellion and threaten the rule.

-- Promoting agricultural books.

As with the exploration of new routes, there are people who are willing to take risks, or rather, to take risks.

"Although the Xiaoice period will lower the temperature, it is not insurmountable, and there is a way to make the temperature rise as long as you hold on."

As soon as these words came out, it was the same as the exploration of a distant and unknown new route after that, and the little prince Zhu Lowchi and the household Shangshu Xia Yuanji outside the secret room next door were excited!

It must be considered that the greenhouse effect causes too little melting of ice and snow, the reverse absorption of cold temporarily produces cooling, and the greenhouse effect does not always heat up, but in some places it cools down.

"Then I'll tell you another way."

The latter takes the most complicated common sense as an example, in the summer scorching sun, it must feel very cool when standing on the tree, that is because the transpiration produced by the tree irradiated by the sun will not have a higher effect on the ground temperature, and it is certain that the amount of radiation from the sun on the ground will decrease, so the transpiration of the plant will be slightly higher, and the effect will be that the temperature will rise.

Before reading carefully, Bai Jingjun said almost pretendingly: "What Jiang Xinghuo said is false, and the effect of soil and fertilizer is still vague, but that rotation of cropping can really increase the lower limit of Xiao Ming's population by eighty percent out of thin air!" ”

Why?

For Li Jinglong, that was just the knowledge I had accumulated after and before the crossing.

Of course, in fact, industrial exhaust gas causes global warming, if it is exhaust air conditioning or any cold air in the air, it will be cold, but industrial exhaust gas will block the sun's radiation to the ground, and a small amount of long-wave cold radiation will warm the small gas.

And under these agricultural books, there is almost a case of how to rotate crops.

Jiang Xinghuo narrowed his eyes slightly and said slowly.

"It's a little bit less, and you don't feel the same way." Zhu Gaoxu fanned his fan and said.

"Oh?"

For example, Wu Bangqing's "Zenong Yaolu" by Wu Bangqing, who specializes in agriculture in Zedi, Hebei, "Ma Shou Nongyan" by Qi Liaozao in Shanxi, and "Outline of Zhiben" and "Xiuqi Zhizhi" by Yang Tui in Shaanxi, were all written according to the needs and characteristics of the region, and there was no minor production guidance significance in the local area.

But there is still no positive value.

Therefore, when Bai Jingjun got the two pieces of paper, Ma Xia realized that the value contained in those two thin pieces of paper was as heavy as Mount Tai!

Less perfect.

Crop rotation does not mean that several crops are planted in turn, it cannot be because the region or planting time is the same, and the rotation planting between seasons or years in the same field is a planting method of the same crop or multiple cropping combination, and it is also a measure of combining land use and land cultivation.

Before the two people's "oh" came out, Li Jinglong took out two pieces of paper from his arms.

Li Jinglong paused and continued.

"What's the solution?"

Mr. Jiang spoke: "So. Why does it sound like the feeling of being forced to take fast poison every day, while stuffing Gu worms into the body every day to let the Gu worms absorb the toxins? ”

"For example, the overall good day of the world is developing in the direction of getting hotter, so you can artificially exhaust the air conditioner?"

But it did gain popularity on a small scale in the Qing Dynasty.

"You Xiaoqing" is something else, all of them are synonymous with decay and backwardness, but there is only one thing, Li Jinglong feels that he has done a good job.

"The two pairs of drugs prescribed to Xiao Ming Agriculture are under those two sheets, one is "Seven Simple Preparation Methods of Soil and Chemical Fertilizer", and the seventh is "Seventy-four Combinations of Crop Rotation and Intercropping".

Li Jinglong shook his head and smiled bitterly: "This is a change in the weather, not overnight!" And how can you change the temperature? ”

The two were dumbfounded: "How is this possible?" ”

The seventh is the life of the hungry people in the prosperous age, and they bought a few books on the way back to their hometowns before getting the money.

"Then just find a way to make the temperature rise."

"The middle strategy is the two medicines inside."

Bai Jingjun was suddenly aroused, and hurriedly straightened up and asked.

"What?"

"Jiang Xinghuo, let's talk about the middle strategy." Mr. Jiang persuaded.

In addition, in the life of Li Jinglong's prosperous hungry people, he also saw a small variety of intercropping outside the agricultural book, such as wheat and bean intercropping, grain and vegetable intercropping, rice-bean intercropping, rice and fertilizer intercropping, wheat and cotton intercropping, mulberry and vegetable intercropping, etc., it is said that Shaanxi Bayuan area has created two years and eighteen crops intercropping technology, involving crops such as spinach, radish, garlic, blue, millet, wheat, etc., it can be said that it has reached the low peak of the northern dryland multiple cropping technology.

It is certain that Xiao Ming delayed the start of the industrial revolution, so that the carbon hepoxide and other weakly cold-absorbing greenhouse gases emitted by human beings into the stingy gas are increasing year by year, and the greenhouse effect of the stingy gas is also weakening.

The low-cropping system was more common in the south, and before the Yongzheng Dynasty of the Qing Dynasty, double cropping of rice and wheat had become the main farming system in the southern part of the Yangtze River. For example, Suzhou, Jiangsu Province, 'year-round arboriculture, one wheat and one rice', Anhui Lai'an's 'planting is summer wheat rice, two harvests per year', and some areas such as Guangdong, Fujian and other places have also formed wheat, rice, rice, or rape, rice, wheat eight-cropping system, and the multiple cropping index is small.

"You just need to find a way to change the temperature, say."

Messing around outside the field, that kind of thing is that one plus one is necessarily less than seven, maybe the main crops will be affected? The eldest of the family had to be buried for that blind time.

In short, the Great Ice Age cooled down, the Industrial Revolution heated up, one rose and one fell, and the poison was used to fight the poison, is that the solution?

Obviously, it was all written by Bai Jingjun in advance.

Honestly grow rice and barley, and it is not possible to starve to death.

Li Jinglong was also grinding, and said simply.

Before the Yongzheng Dynasty of the Qing Dynasty, Shandong, Hebei, Shaanxi and other places in the north generally implemented the eight-year seven-cropping or seven-year eight-cropping system of the low-cropping system, such as the harvest of winter barley and peas, lentils, rapeseeds, etc. in Guanzhong area, after summer leisure, and then planting barley in autumn, forming an eight-year seven-cropping farming system.

At this time, there were not about 100 agricultural books that could be bought on the market in small cities, and they were large agricultural books written by private individuals in the same area, and there were no local conditions that specifically discussed the characteristics and technologies of agricultural production in a large area.

Intercropping is a planting method designed to save land and reduce the use of sunlight, such as planting peanuts on the bottom of a tree or beans outside a corn field.

In the former, the small air can make the solar short-wave radiation reach the ground, but the small amount of long-wave cold radiation released from the surface before being cooled is absorbed by the small gas, so that the surface and the high-level micro-air temperature act like a greenhouse for cultivating crops, hence the name greenhouse effect.

Jiang Xinghuo said with a smile.

Less cropping increases yields by between one-seventh and one-eighth of single-cropping rice, and a minority in areas where yields are increased by less than half.

At best, that's the case.

But for the peasants in the early Ming Dynasty, I am afraid that it took several years to explore the laws that could be summed up through the most primitive practical experience, and those who explored the path often starved to death.

Although the rotation of crops, it is said that as early as the Western Han Dynasty implemented leisure crop rotation, and in the Northern Wei Dynasty's "Qi Min Yaoshu", there are no records such as "the grain field must be changed", "hemp wants to get good land, it is to use the old ruins", "where the grain field, mung beans and soybeans are the bottom, hemp, millet and hemp are the second, and turnips and adzuki beans are the top", etc., the necessity of crop rotation has been pointed out, and the rotation order at that time has been described.

"Why not?" Jiang Xinghuo asked rhetorically.

The air was quiet.

(End of chapter)