After Zhuge Jin had laid out enough sources of his knowledge to avoid suspicion, he
Finally, I can come up with my first supplement plan:
"Xiankao recorded in his notes of exchanges with Cui Shi that year: When he traveled to Wuhui in the early years, he saw that mustard can be grown over the winter in Jiangdong. After the rice is harvested in autumn, mustard seeds are sown so that they can be eaten in the spring.
However, there are no human races in the Huaihe River and further north. Firstly, wheat in the north and rice in the south, so wheat (winter wheat) has to compete with mustard for land. Secondly, because of the severe cold in the north, mustard seedlings are prone to freezing to death over the winter.
At first, I thought that what I got from hearsay and paper was shallow, but I knew that I had to do it carefully. Later, I asked Zhuang Ke to try planting in Langya, and he repeated the experiment for several years, adjusting water, fertilizer, and season.
Finally, it was discovered that if the mustard seeds were sown according to the normal season for harvesting rice in the south, the mustard seedlings would be frozen to death by the severe winter; but if the mustard seeds were sown one month in advance, the mustard seedlings would be strong enough to withstand the severe cold when winter came.
Our army is now in the land of Huainan. Although it is not as warm and moist as Jiangdong, it is still warmer than Langya. Judging by common sense, you only need to plant winter mustard half a month earlier than Jiangdong to ensure that the vegetable seedlings are strong enough for winter. In this way, there will be some freshly harvested leafy vegetables during the spring famine next year, which will alleviate the soldiers' food shortage. "
Of course, Zhuge Jin did not learn this from Zhuge Gui, but he loved reading in his previous life and had a wide range of interests. He had read interesting popular science books such as "Eclipse Sun Talk" and listened to some popular historical science on Bilibili Douyin. Blogger breaks it off.
There are not many people who research online on topics such as "Which crops were introduced to China in which dynasty, and when did the ancients learn to grow such-and-such?" A lot.
The mustard greens he mentioned in the Han Dynasty were between the green vegetables and rapeseed in later generations, so it does not hurt to directly understand them as green vegetables.
At that time, there was no rapeseed oil extraction, so mustard was not differentiated and bred into green vegetables that specialized in eating leaves, rapeseed for oil extraction, and kohlrabi for making mustard. The various organs of mustard greens in the Han Dynasty were relatively evenly developed, so you just need to eat them all when you eat them.
But no matter where Zhuge Jin saw it, Zhuge Gui had been dead for seven years, so it was impossible to verify it.
Liu Bei listened to his eloquent talk and talked about farming on paper. He was a little surprised and a little unsure at the same time.
What is surprising is that the Zhuge family is really unfathomable, and the key to the depth is not the conclusion, but the way Zhuge Jin described his family's academic study——
They actually thought of conducting precise quantitative analysis and conducting controlled experiments.
For example, Zhuge Gui knew that the weather in Langya was cold, so he estimated that the winter mustard seeds were not viable because the seedlings were not strong enough in winter. Then diligently set up many experimental control groups, start planting very early, and then plant a few more every few days. Finally, count the growth results of each batch of planting time, and draw the conclusion: "Which day will the latest planting still be successful?" If you can live, record the date."
This kind of systematic and accurate biological control group experiment was impossible for the ancients to think of. They did not have this kind of scientific and rational thinking. It would be nice if the ancients could observe and summarize their daily experiences.
Although Liu Bei didn't know whether overwintering mustard could be grown on the ground in Guangling County or whether it was too late to plant it now,
But he is very knowledgeable and has already seen that if Zhuge Jin's idea can be extended and used to conduct large-scale control experiments on other grains and vegetables, he will definitely be able to dig out a lot of results and discover many new possibilities. In the end, It benefits the people all over the world.
Agricultural progress does not require the discovery of new species. Scientific stress tests are conducted on the characteristics of existing species to determine their limits, and then management is optimized. Think about whether they can be combined with intercropping to create new production models, and then formulate experience books. Promotion, this is also of immeasurable merit.
Unexpectedly, today Ziyu proposed an experimental experience from Mr. Jungong in his later years, which was actually to alleviate the food shortage in Guangling...
Liu Bei sighed and was grateful for a long time, and then said: "This year's spring farming in Guangling was originally affected by the destruction of Zirong last year. Later, it was also affected by the war and lost some farming time. A lot of land was idle and no one was planting rice. It would be better to use it to plant mustard in advance. It's a slight supplement.
However, if the spring plowing season for rice is completely normal in the future, can winter mustard be replanted after harvest? Doesn’t it mean that the growth periods of the two overlap by half a month? Will it be too late to wait for the mustard seedlings to be strong, and will be frozen to death by the severe cold? "
This problem is actually not very urgent, and it is not even a problem to be faced this year.
It's just that Liu Bei suffered a lot in his early years and was well aware of the suffering of the people, so he couldn't help but care more about it.
Fortunately, Zhuge Jin didn't hesitate to chat a few more words, and casually replied: "It's simple. I tried it when I was in Langya first. You can dig some soil first, fertilize and water, and raise separate mustard seedlings. In this way, at least the rice can grow." We can get half a month's time before harvesting, wait until the mustard seeds start to germinate, and then sow them in the fields, they can still be planted."
This statement once again refreshed Liu Bei.
The people of the Han Dynasty did not even have the idea of "cultivating rice seedlings/transplanting rice seedlings". Farming was just to throw the seeds directly into the ground.
Historically, it was not until the Tang and Song Dynasties that the technology of rice cultivation and transplantation was gradually improved. By moving the seedling germination stage to another place separately, do not occupy the land of the field.
This greatly saves the use time of the field, allows for a variety of vegetables for one season, or allows overwintering crops to stagger the growth period of summer staple crops.
Even though Zhuge Jin had never farmed before, as a later generation, he could easily think of the idea of raising seedlings and transplanting seeds, and saving farmland at the wrong time.
Even a primary school student in later generations, and one who grew up in the city and has never been to the countryside for a day, will know that rice must be planted.
The climate difference between Huainan and Jiangdong is not big, and they are only separated by the Yangtze River. Even if it is slightly colder, catalyzing the germination of mustard seeds in the soil for ten and a half days in advance is enough to achieve planting conditions equivalent to those in Jiangdong.
…
Liu Bei sighed after listening to Zhuge Jin's casual chat.
Tzuyu’s words can be profoundly inspiring and beneficial.
However, Liu Bei also knew that even if he could grow overwintering mustard, it would still not be enough to completely solve Guangling County's food problem this year.
How can you stay full just by eating vegetables?
Even if we ask the soldiers to put more mustard greens in their meals starting from the end of February next year, or even increase the proportion of mustard greens to more than half, even if the soldiers' eyes are so hungry that they glow green, it still won't last.
Before February, it is estimated that all the rice, wheat and millet have been eaten.
With the production method of farming, food is still too slow to come in. The growth period of staple food often takes more than half a year, and the growth period of vegetables lasts at least a hundred days. Water from afar cannot quench the thirst of the nearer!
Liu Bei hopes to have a new food source that will be effective immediately, preferably within ten days and a half, so that starting from September, he can reduce the consumption of staple food.
But Liu Bei was really embarrassed to make such an unreasonable request again. He hesitated for a long time and just sighed: "Sir, he can think of so many wonderful strategies and good methods, which is already a great virtue for the people. He only hates the benefits of farming, but the results are slow after all. This is also Nothing can be done.
To come quickly, we still have to rely on trade, fishing, and hunting. Unfortunately, Mr. may not be familiar with those. No matter what, it is an unexpected joy to be able to do this. I will properly comfort the soldiers, and we will share the joys and sorrows and prepare to survive this famine winter and the spring famine next year. "
Zhuge Jin: "It is human nature to hope for quick results by fishing, hunting, woodworking, and gathering. In the past ten days, I have actually considered these methods and gained some experience. But before coming to Guangling, I couldn't adapt to local conditions and try them on the spot. It still takes some time to verify.
General, please be at ease and finish taking care of the other urgent matters at hand first. Within half a month, I will come up with a method that will definitely help. I am not sure yet, so I dare not boast too much for the time being. "
Liu Bei was overjoyed again, but felt that the emotion of surprise in his mind today was no longer enough.
He hadn't seen Ziyu for only ten days, but he had already held back more than one ultimate move? What kind of mind is this?
Liu Bei couldn't help but recall with leisurely fascination that when he and Tzuyu first met, they only got along for two days, and then they escorted each other's family away.
During those two days, Ziyu gave him a plan every day, and the speed and frequency were a blast.
Later, they were separated for ten days, and now when they met again, the other party was able to give him three surprises at once: The first surprise was to teach Zhang Fei to disguise himself as an enemy army and steal the city from Guangling. The second joy is the thought of planting overwintering mustard to tide over the food shortage. The third joy is what I just mentioned, and I plan to make some small improvements in fishing, hunting, woodworking, and woodworking.
Calculated in this way, when Zhuge Jin works overtime with all his strength, it is one plan per day.
Even if he is in a semi-herding state on his rest days, he can still come up with a plan in his mind every three days - at least this number is still valid so far.
The speed of the brain is so terrifying!
Liu Bei was so fascinated that he quickly followed the good advice and asked for advice humbly and without any doubt:
"I wonder what Mr. Sir just said, what are the most pressing matters for our army at the moment? Be prepared to deal with them immediately. After they are done, come back and listen to the rest of Mr. Sir's speech!
From my point of view, it seems that our army is the most urgent right now with Yun Chang, but it is not difficult. I will spend a few more days to help him completely push Ji Ling back to Xuyi, break away from our army, and immediately organize an attack after Yuan Shu is cut off. If you think about it, it should be fine. The remaining energy should be devoted to rectifying internal affairs. "
Zhuge Jin nodded: "Yun Chang's side is indeed one thing, but there is another urgent but not difficult matter, which is that Hailing County next door is still in the hands of Yuan Shujun.
Please general divide the troops to enclose the territory, force it to land, and take over the county in an orderly manner. Only in this way can our army's territory be completely stable, with solid borders and no hidden dangers. After doing all this, the new method of raising food I mentioned should be in place. "
Hailing County is Taizhou City in later generations, plus a small part of Nantong in later generations (the main part of Nantong is still under the sea today, and the two counties of Rudong and Rugao are still an isolated island. It will take another few hundred years to It is connected to the land by alluvial sand from the Yangtze River).
It is located not far east of Guangling County (Yangzhou City), only a hundred miles away. Liu Xun originally stationed one or two thousand soldiers and horses locally, as well as some local warriors.
Guangling fell yesterday, but the Hailing side did not retreat. Now it is impossible for the Yuan army there to withdraw home by land. The retreat has been cut off by Liu Bei, and they can only retreat by taking the Yangtze River waterway.
But because Zhang Duo, a naval officer under Liu Xun, ran away with Liu Ye, Hailing's few troops may not have enough ships to retreat, let alone a professional naval escort.
When Liu Bei heard this, he felt that this matter really needed to be urgent. He immediately said that since his third brother was injured and overworked and was still recovering, he would personally suffer the consequences and send troops to Hailing County tomorrow morning.
It is estimated that the march and preparation will take two days. It is best to make an emergency landing on the desperate enemy without using troops. In this way, it can be done in five days of round trip and comfort.
Liu Bei is also idle. He will clean up the finishing work first, and then come back to further listen to his teacher's instructions.
