Da Qin: Comparing his sons, Ying Zheng was sour.

【"There are actually crops that produce over a thousand kilograms per mu, or even three thousand kilograms of grain!"】

【"If a few people extend this to the whole world, will there still be famine in the world?"】

【King Qin Yingzheng looked at the empty pond in front of him, as if he saw full of lotus roots and water chestnuts, and murmured to himself:】

【After discovering lotus roots and water chestnuts with a yield of over a thousand kilograms per mu, or even three thousand kilograms per mu, King Qin Yingzheng immediately looked down upon wheat, rice and other grain crops that originally produced only about a hundred kilograms per mu.】

【After all, the difference in yield per mu is ten times or even thirty times between more than a hundred catties and thousands or three thousand catties.】

【What can wheat, rice and other grain crops be used to mix with lotus roots and water chestnuts?】

【Xu Zi on the side also laughed and cried:"One thousand jins of water chestnuts can be produced per acre, and three thousand jins of lotus roots can be produced per acre!""】

【"very nice!"】

【"People in Guizhou no longer have to worry about starving to death!"】

【"If I could have discovered earlier that water chestnuts and lotus roots have such high yields per mu, I wouldn’t have had to starve to death so many people in Guizhou!"】

【"It's my fault, I feel sorry for the people in Guizhou. I have eaten water chestnuts and lotus roots many times, but I have never noticed that its output is so high."】

【While Xu Zi was happy for discovering lotus roots and water chestnuts, he felt guilty for not discovering the high yields of lotus roots and water chestnuts earlier.】

【After all, it is lotus root with a yield of three thousand kilograms per mu and water chestnut with a yield of over a thousand kilograms per mu. If they can be promoted as early as possible, too many people in Guizhou can be saved.】

【For example, the 400,000 Zhao soldiers who were trapped and killed by Bai Qi in the past】

【Why did Bai Qi kill 400,000 Zhao soldiers?】

【The fundamental reason is that the Qin State could not afford to raise 400,000 captives at that time, and if these 400,000 captives were released directly】

【With a few simple modifications, these 400,000 prisoners will turn into 400,000 troops to attack and resist Qin!】

【In the future, these 400,000 prisoners will turn into an army of 400,000, which will bring greater trouble and deeper harm to Qin.】

【Therefore, after weighing the two aspects, Bai Qi resolutely decided to kill 400,000 Zhao soldiers.】

【If the Qin State at that time could have discovered it earlier and promoted the cultivation of lotus roots with a yield of three thousand kilograms per mu and water chestnuts with a yield of more than a thousand kilograms per mu, it would have been】

【Then Qin will have enough food to feed the 400,000 captives.】

【And if the Qin State can afford to raise 400,000 prisoners, then Bai 720 will not choose the path of 720 trapping and killing 400,000 Zhao soldiers.】

【After all, in this era, there is a saying that"it is unlucky to kill prisoners"】

【Even when Bai Qi was sentenced to death later, many people believed that it was the retribution brought about by Bai Qi killing prisoners.】

【For another example, the people in Guizhou Province starved to death due to famines caused by various natural and man-made disasters in various countries.】

【If these people in Guizhou could discover it early and promote the planting of lotus roots with a yield of three thousand kilograms per mu and water chestnuts with a yield of over a thousand kilograms per mu.】

【Then maybe they won't have to starve to death, and the whole family can survive.】

【In a word, there are two types of edible grains with a yield of 1,000 jins per mu and grains with a yield of more than 3,000 jins per mu.】

【The role it can play in the current era is far greater than the role it can play in any future era.】

【After all, with the passage of time and the accumulation of farming experience and technology from generation to generation, the yield per mu of other crops and grains in future generations will also slowly increase.】

【Relatively speaking, even if the people in Guizhou in later generations do not have a grain yield of one thousand kilograms per mu or more than three thousand kilograms per mu, they can obtain more grain per mu than the people in Guizhou in this era, and it is easier to withstand various Survive natural and man-made disasters】

【While Qin Wang Ying Zheng and Xu Zi lost their composure, the other farm boys present were also shocked. They didn't even bother to bow to Qin Wang Ying Zheng and Prince Fu Su, so they turned around and ran away in a certain direction.】

【Because they remembered that there were lotus and water chestnuts growing in the Niushou Pond nearby.】

【And if there are lotus flowers, then there are lotus roots】

【So they couldn't wait for a moment, so they were going to immediately dig up the lotus roots and water chestnuts in Niu Shou Pond, and then put them in various fish ponds for breeding.】

【Seeing everyone losing their composure because of his words, Prince Fusu couldn't help but said:"Father, Master Xu, you overestimate the effects of lotus roots and water chestnuts."】

【"Although the cultivation of lotus root and water chestnut can be promoted, at present, it cannot be truly promoted on a large scale."】

【"Lotus roots and water chestnuts alone cannot solve the famine problem of the people in Guizhou for the time being."】

【King Qin Yingzheng, Xu Zi, and other personnel all turned their heads to look at Prince Fusu, their eyes full of confusion.】

【Why can’t the cultivation of lotus root with a yield of 3,000 jins per mu and water chestnut with a yield of 1,000 jins per mu be promoted on a large scale?】

【Are there any other problems with lotus roots and water chestnuts that they don't know about?】

【Seeing everyone's puzzled expressions, Prince Fusu further explained:"The first question, what I just said is that when the staple food of grains is not enough, lotus roots and water chestnuts can be used as staple food."】

【"However, if you only consume lotus root and water chestnut for a long time, it will easily cause diarrhea, vomiting and other problems."】

【"I have asked Xia Wuji, the doctor in the palace, about this before."】

【"This means that lotus root and water chestnut can only be used as emergency disaster relief food, or they can be mixed with other staple foods such as grains, and cannot really replace grains."】

【As early as after discovering the amazing nurturing properties of lotus roots and water chestnuts, he took the lotus roots and water chestnuts to ask the palace doctor.】

【However, the palace doctor Xia Wuqi gave him the answer that lotus roots and water chestnuts can be eaten, but they cannot be eaten for a long time, otherwise he will suffer from various diseases.】

【On this point, he had quietly asked Zhang Han to arrange for people to experiment on this in the past.】

【It proves that if a person only eats lotus root and water chestnut for a long time, although the food will not kill him, he will still be prone to abdominal distension, abdominal pain, vomiting and other diseases.】

【"The second question is, if you want to promote the planting of lotus roots and water chestnuts, the first prerequisite is sufficient water!"】

【"Because if you want to cultivate lotus roots and water chestnuts, you must dig fish ponds, or in other words, lotus roots and water chestnut ponds must be used to store water for cultivation."】

【"If we only dig one, two, or three such lotus root and water chestnut ponds, maybe the surrounding river water sources can still support them."】

【"However, if too many lotus roots and water chestnut ponds are excavated, then unless there are large rivers, rivers, lakes, etc. around them as water sources for the lotus roots and water chestnut ponds,"】

【"Otherwise, the surrounding areas will inevitably fall into a state of water shortage and interruption, resulting in no water available around them."】

【"The third question is that a pond with lotus roots and water chestnuts needs to be dug several feet deep at least, so that lotus roots and water chestnuts can be cultivated."】

【"But if you have to dig out several feet of soil from one acre of land, then this project will take far more time and effort than farming!"】

【"It would take several years at least to excavate a lotus root pond and water chestnut pond that is one acre in size and several feet deep with the labor force of several people in a family."】

【"And this is just the time and energy required to dig out a one-acre lotus root and water chestnut pond."】

【"If you dig a two-acre, three-acre, or even larger lotus root or water chestnut pond, the time and energy required will increase exponentially!"】

【"In addition, after digging the lotus root and water chestnut pond, we still need to continue to dig a drainage channel."】

【"Divert nearby water sources into lotus root and water chestnut ponds. Such a lotus root and water chestnut pond will be considered the ultimate success."】

【"This step will take at least a year and a half."】

【"The further away the water source is, the longer this step will take."】

【"After these two steps, if a family does not have sufficient food reserves to meet the needs of the family for three to five years, or seven or eight years, then"】

【"Then I'm afraid that before they can dig a lotus root or water chestnut pond, the entire family will have starved to death."】

【"And if a village is gathered together to dig a lotus root, water chestnut pond, and a drainage canal, then a lotus root, water chestnut pond, and drainage canal can be dug in a short period of time."】

【"However, the lotus roots and water chestnut ponds excavated by the whole village will either be directly owned by the whole village, or the same lotus roots and water chestnut ponds will be dug for everyone in the village."】

【"Otherwise, in the end, trouble will inevitably arise due to inequality rather than scarcity."】

【"And if one person in the village digs a lotus root or water chestnut pond, then it will return to the second question I just mentioned, that is, are the water sources around the village enough to support it?"】

【"If only half of the people can be supported, or if the lotus roots and water chestnut ponds of a small number of people can store water,"】

【"Then the remaining people in Guizhou who can't store water will inevitably make a fuss again, causing many troubles."】

【Having said this, Prince Fusu also sighed softly.】

【Although he is naturally smart, he is not able to figure out a solution to every problem.】

【Among the three questions just raised, the first one is that lotus root and water chestnut cannot be eaten for a long time. That is a natural disadvantage and there is no solution.】

【The second problem is the water source needed for lotus root and water chestnut pond. This is a geographical issue. Although it can also be solved by building various water conservancy projects, the amount of engineering involved is too large.】

【It’s so big that it’s almost unrealistic, so having a solution to this problem is equivalent to having no solution.】

【The third problem is easier to solve. Whether the excavated lotus roots and water chestnut ponds are directly owned by all the villagers, or through reasonable organization and dispatch of manpower for excavation, each person can have one lotus root and water chestnut pond.】

【These are all difficult and troublesome problems, but they can still be solved.】

【However, if the first two problems cannot be solved, then simply solving the third problem will not make much sense.】

【It was precisely because these problems were superimposed together and there was almost no way to solve them that he had not reported to his father about the amazing yields per mu of lotus roots and water chestnuts.】

【Because no matter how amazing the output of lotus roots and water chestnuts per mu is, if their cultivation cannot be promoted on a large scale, their role and significance will drop from the strategic level of the town to the level of ordinary treasures.】

【As for the pragmatic Da Qin, it is okay to have such things as rare treasures, or not to have them.】

【After listening to Prince Fusu's story, everyone present, including King Qin Yingzheng, inevitably showed a look of disappointment.】

【However, Xu Zi was the first to recover and said with a smile on his face:"Even if it is impossible to promote the cultivation of lotus root and water chestnut among the people in Guizhou on a large scale, it still has an extremely important role and significance."】

【"At least Qin can use relevant manpower and material resources to dig out lotus root and water chestnut breeding ponds in some countries, and then breed lotus root and water chestnut in large quantities."】

【"After these lotus roots and water chestnuts are harvested, they are stored and used as emergency relief food during disasters. It is still very useful."】

【Hearing this, King Qin Yingzheng also nodded slightly.】

【Although lotus roots and water chestnuts are not as strategically important as he initially thought, but as Xu Zi said, official cultivation of some can still be very useful as a reserve food for emergency disaster relief.】

【Moreover, Fusu said that lotus root and water chestnut cannot be eaten alone for a long time, so he should be able to eat lotus root and water chestnut mixed with other staple foods.】

【This can more or less reduce some military supplies, food and grass, or other food expenditures.】

【Prince Fusu also nodded and said:"Well, in addition to official breeding, I think a more suitable way for the people of Guizhou is to gather the efforts of the whole village to dig a fish pond of several acres that belongs to the whole village."】

【"While raising fish, we also raise lotus roots and water chestnuts."】

【"Among them, the seedlings of fish, shrimp, crab and turtle can be purchased by the whole village of Guizhou people."】

【"Then wait until the fish, shrimps, crabs, and turtles grow up at the end of the year, and then fairly distribute the fish, shrimps, crabs, turtles, and other aquatic products according to their respective contributions at that time."】

【"As for lotus roots and water chestnuts, you only need to find someone to dig some lotus flowers and water chestnuts in the mountains, lakes and ponds, and then throw them into fish ponds for cultivation."】

【"Because the sources of lotus roots and water chestnuts are not valuable, when the lotus roots and water chestnuts are harvested at the end of the year, they can be distributed equitably according to the population of the village."】

【"After all, the larger the number of people in a family, the more effort the family will put into digging fish ponds, so it is reasonable to take more."】

【"In this way, the people in Guizhou will be able to taste some extra fish and eat some lotus roots and water chestnuts at the end of the year."】

【"Even if the people in Guizhou don't eat it themselves, they can sell it like the fruits harvested from the fruit trees planted in front of and behind their houses to add some extra income to their family and subsidize their household income."】

【"Also, didn’t you say before that you are studying whether river pond silt can be used as fertilizer?"】

【"If it is verified that it can be used, then after harvesting fish, shrimps, crabs, and turtles at the end of each year, the mud in the fish ponds can be dug out and distributed equally to the villagers and people for use as fertilizer."】

【"Or the excavated mud is piled around the pond and used as a foundation to flatten it into a wide field, and then some mulberry trees, rice, vegetables and fruits, etc. are planted."】

【"As for how to distribute the harvest of mulberry trees, rice, vegetables and fruits around the fish pond, it is also decided by the villagers."】

【"In addition, the pond foundation piled up with silt can also play a certain role as a dam, thereby alleviating certain floods."】

【"Regarding fish pond aquaculture, these are the general ideas."】......

PS1: Although lotus root and water chestnut are very productive, they have great limitations.

This is also the main reason why although lotus root and water chestnut can compete with potatoes, sweet potatoes, corn and other high-yielding grains in terms of yield per mu, their reputation and promotion are not as good as potatoes, sweet potatoes and corn..