Liu Xin, as a foodie, naturally can't resist the temptation of food, and ten black potatoes naturally can't satisfy Liu Xin's appetite, after all, he has to stay in Luoyang for a while, and the journey from Luoyang to Chengdu will take a lot of days, so he simply asked for a hundred black potatoes, after all, he can also get a little discount. Pen ~ fun ~ pavilion www.biquge.info

However, Liu Xin forgot that the volume of a hundred black potatoes was not small, but fortunately, the place where Liu Xin and Su Jia chose to talk was quite empty, and the black potatoes that appeared out of thin air did not fall on Liu Xin's head.

I have to say that the efficiency of Tiandao is still very fast, Liu Xin just made a request here, and the black potatoes were sent to Liu Xin, but now there is another question, where should these black potatoes be placed?

After thinking about it, Liu Xin decided to put these black potatoes in the wooden cow flowing horse, after all, the anti-theft efficiency of the wooden cow flowing horse is excellent, and only Su Jia and Liu Xin are qualified to open it, because the wooden cow flowing horse uses fingerprint unlocking.

Although in modern times, these 100 black potatoes are nothing, but in the Han Dynasty, there are only 100 black potatoes now, Liu Xin only needs to hype one or two, he can hype these 100 black potatoes into a divine fruit that can last for a second, and there is no problem in selling a thousand taels of gold at that time.

Of course, Liu Xin will not do such an undisciplined thing, after all, he wants to promote this kind of black potatoes in the future, if he sells these black potatoes to others with a clear conscience now, Liu Xin can be sure that those wronged bosses will definitely come to find trouble for themselves in the future.

Therefore, Liu Xin decided to keep it for himself and eat slowly.

As for Su Jia, for Liu Xin's practice of "filling his own pockets", he can only say that Liu Xin is happy, after all, Liu Xin is Su Jia's master, and there is no option to blame the owner in Su Jia's production settings.

However, Liu Xin still looked at Su Jia with a little weak heart, Liu Xin also realized that he was a little too selfish to do this, although it was harmless, but Liu Xin still said to Su Jia with some apologies: "Su Jia, you also know that I like to eat potatoes, don't I just don't control my hands all of a sudden, you won't have an opinion." ”

Su Jia shook her head with a smile and said: "How can it be, Confucius once said that I have no desire to eat color, although as a robot I have no desire to speak, but I can understand this feeling very well, so why should you worry about it, master, and these hundred black potato seeds are nothing, and it will not have much impact on the master, your task of promoting crop seeds to the Han." ”

As Su Jia spoke, she picked up a black potato, roughly estimated it, and then said to Liu Xin: "Master, I have scanned it just now, and the seed size of these hundred black potatoes is almost the same, so I think the weight of these black potato seeds should be the same, about 1,200 grams, and as long as there are fifty grams of potato seeds, it can ensure its survival and normal development, so each black potato can actually be divided into twenty-four black potato seeds, So as long as we breed 100,000 black potato seeds, I can guarantee that after a year, the owner will be able to promote these black potatoes to Dahan. ”

After Su Jia's analysis, Liu Xin found that after the black potatoes were cut into seeds, there were so many of them, and Liu Xin couldn't help but want to exchange some black potatoes again.

Of course, as a strong-willed (?) Liu Xin naturally resisted the impulse in his heart and did not stretch out his evil black hand again.

Liu Xin picked up a black potato and found that the black potato was actually not pure black, but a purple-black potato, but if it hadn't been certified by the Heavenly Dao, Liu Xin would have thought that this was a purple potato.

But thinking of this, Liu Xin patted his head again, how could he forget the sweet potatoes that are as famous as potatoes.

The official name of sweet potato is sweet potato, but according to the different regions, there are dozens of names, in Chengdu it is generally called red potato, and the names that Liu Xin knows alone are red taro, sweet potato, sweet potato, thread lotus, white potato, golden potato, sweet potato, red potato and so on.

Sweet potatoes are generally believed to have originated in Mexico and tropical America, from Colombia to Peru, and the first record of sweet potatoes in historical records is that Columbus presented sweet potatoes brought back from the New World (i.e., South America) to the Queen of Spain when he first met the Queen of Spain.

So at the beginning of the sixteenth century, Spain had begun to widely grow sweet potatoes, and Spanish sailors carried sweet potatoes to Manila and Molucca Island in the Philippines when they sailed the world, and then spread to all parts of Asia, so at the end of the sixteenth century, sweet potatoes were introduced to China in a variety of ways, and like potatoes, they were promoted to various regions of China in a very short period of time, and it can be said that sweet potatoes are grown throughout China.

The reason why sweet potatoes are as famous as potatoes is because sweet potatoes and potatoes have many similarities, such as their origins are in South America, they were introduced to China around the 16th century, and they all spread to all parts of China in a very short period of time, making important contributions to solving the famine in China; And the planting method of sweet potatoes is also relatively simple, as long as there is sufficient light and heat, sweet potatoes can develop smoothly even in barren land, and the yield per mu is also very amazing, and potatoes can be said to be up and down.

The sweet potato belongs to the tubular-shaped flower order, an annual herbaceous plant of the family Spiral, the root system can be more than 2 meters long, lying flat on the ground when growing, and the same underground tuber roots as potatoes, the tuber roots are spindle-shaped, the outer skin is earthy yellow or purple-red, and it looks similar to potatoes from a distance.

Because sweet potatoes are rich in protein, starch, pectin, cellulose, amino acids, vitamins and a variety of minerals, they have the reputation of "longevity food", of course, sweet potatoes also have anti-cancer, protect the heart, prevent emphysema, diabetes, weight loss and other effects.

However, what Liu Xin wants to complain about is that the sugar content of sweet potatoes has reached 15 to 20 percent, so the taste is relatively sweet, and the starch content is also very high, so sweet potatoes are not suitable for diabetics to eat, but there are still certain benefits for diabetics to eat in small amounts.

As far as Liu Xin knows, the number of diabetic patients who have been diagnosed in China has reached about 120 million, and this has been diagnosed, and it is estimated that at least more than half of the diabetic patients do not know about their disease, and among these uninformed diabetic patients, there are many young people in their twenties and thirties.

Just like the day Liu Xin crossed into the world of the Han Dynasty, Liu Xin met a twenty-eight-year-old man who came to see a doctor because of low back pain, and his face looked good, but after the blood routine test, he found that the man had diabetes, and the man didn't even know it (this is what the author encountered today, and the author thought he was dazzled and wrong at first).

Among the elderly, 30% of the elderly have already suffered from diabetes, and because of the immaturity of previous medical conditions or some personal reasons, once these elderly people with diabetes are confirmed, diabetes is already very serious; Of course, there are many elderly people who do not know that they have diabetes, but they heard that eating sweet potatoes can prolong life and prevent diabetes, so they eat it every day, every meal, and the result is that diabetes is getting worse and worse.

Therefore, if there are elderly people in the family, do not blindly eat sweet potatoes because of their many benefits, and first confirm whether the elderly have diabetes, so as not to prevent sweet potatoes not only failing to prolong life, but becoming the "culprit".

The above paragraph is also regarded as the author's private goods, I hope you can pay attention to this misunderstanding.

Back to the topic, Liu Xin felt that since he had already chosen potatoes, should he choose another sweet potato as the fourth crop seed?

Liu Xin said that he was very entangled in this, after all, the similarity between potatoes and sweet potatoes is extremely high, and he feels that if he chooses sweet potatoes, it will coincide with the type of potatoes, and he can only choose five planting crops now, and he must plan comprehensively.

But Liu Xin, as a foodie, is a little reluctant to sweet potatoes, because the taste of sweet potato flour and dried sweet potatoes is too good, and when Liu Xin was in college, there were roasted sweet potatoes sold at the school gate every winter, Liu Xin would buy one every time he passed by, and it felt very comfortable to eat, of course, sweet potatoes are very bad, that is, they can promote metabolism and speed up the discharge of waste gas in the body. . .

It just so happened that it was winter, and Liu Xin was a little itchy when he thought of this, which made Liu Xin a little difficult to choose between sweet potatoes.

So, Liu Xin decided to discuss with Su Jia how to solve this problem.

Liu Xin smiled and said to Su Jia: "Su Jia, I have a very serious question to ask you, that is, should I choose the fourth crop seed as sweet potato, you also know that the annual yield and nutritional value of sweet potatoes are good, which is very suitable for the current situation of the Han, but there is one very serious point, that is, the types of sweet potatoes and potatoes are somewhat similar, so I think it is good to choose one of sweet potatoes and potatoes, and now I already have black potatoes, so I think if I don't choose sweet potatoes, So that we can choose another type of crop seed, so I decided to leave the choice to you, because my choice difficulty is sick again. ”

Su Jia thought for a while, and then said to Liu Xin seriously: "Since you have said so, master, then I will put forward my personal opinion here, sweet potatoes can be chosen or not, I think the probability of the two is five or five." ”

"The reason for not choosing sweet potatoes is actually very simple, as you said, the types of potatoes and sweet potatoes have been repeated, and we can still choose two crop seeds, if we choose sweet potatoes, we can only choose one other type of plant seeds, and we can choose a smaller surface."

"However, there are also many advantages to choosing sweet potatoes, because sweet potatoes can be rotated with potatoes, because potatoes are a crop that is not tolerant to continuous cropping, which means that potatoes consume more land fertility, so when choosing a plot to plant land, you should choose a plot that has not been planted with potatoes and other solanaceae crops in three years, of course, there are no crops such as potatoes and eggplants in Dahan now, so there is no need to worry about this."

If potatoes are planted continuously for more than three years, it will not only cause a variety of serious diseases, but also cause soil nutrient imbalance in the land, especially some trace elements, so that potatoes grow poorly, the plants are short, the yield is low, and the quality is poor.

"So potatoes and corn, wheat and other plants rotation effect is better, but today's corn Han is not, but also on the other side of the Han in South America, for the time being, sweet potatoes are a good choice, because sweet potatoes do not have high requirements for land, and the yield is similar to potatoes, so it is very suitable for rotation planting with potatoes to ensure the food output of a piece of land, after all, it is about to be a troubled world, crops like rice and wheat need to be carefully cared for, so it is only suitable for planting in relatively stable areas, so as not to be destroyed by war; And crops like sweet potatoes and potatoes as long as they are thrown in the soil, they will have a good harvest without deliberate care, which is very suitable for promotion in Hebei, after all, before Cao Cao unified Hebei in history, there were constant wars, and grain production can be said to be almost none. ”

Although Su Jia said that it was five or five open, in fact, Liu Xin knew that Su Jia was more inclined to sweet potatoes, as Su Jia said, sweet potatoes can make up for the shortcomings of potatoes, and taking turns planting with potatoes can effectively use the land.

As a result, Liu Xin decisively decided to choose sweet potatoes as his fourth crop seeds.

ps: There will be a third update before today, Wan is more proper? (To be continued.) )