Without waiting for Luo Xueyun to ask, Qin Yuanshan explained.

"Continuous planting of the same crop or related crops in the same field often leads to reduced yields, poor quality and poor growth conditions, which we call continuous cropping barriers.

Take this cabbage as an example, if you plant the same piece of land for several consecutive stubbles, the harmful substances in the soil will increase, the beneficial substances will decrease, the soil environment will become worse and worse, and at the same time, diseases and insects will accumulate and damage the crops. ”

The explanation is very easy to understand, and it seems that it is definitely a pot that is planted continuously.

"How can we avoid this kind of continuous cropping obstacle?"

"Change the stubble without changing the soil, one acre on top of two acres; Farming does not fall stubble, and nine times in ten years are blind; There is no need to ask about crop rotation and stubble, it is as good as laying down manure every year. ”

Qin Yuanshan slowly groaned and said: "Crops that often have continuous cropping obstacles, we generally use three planting methods to avoid, crop rotation, intercropping and fallow.

For example, a field in our Tianji area is planted with wheat in winter and rice in summer, which is a typical rice-wheat rotation, which can avoid continuous cropping obstacles, of course, the continuous cropping problem of cereals is not prominent.

A piece of land with high corn and dwarf sweet potatoes is intercropped, and the interplanting of small cabbage and some onions and garlic can significantly reduce continuous cropping obstacles and inhibit pests and diseases.

Fallow is very simple, and it takes three or four months to rest after harvesting a crop. ”

Luo Xueyun was silent.

Qin Yuanshan raised his eyebrows and said, "You don't seem to be satisfied with these methods, can you ask why?" ”

Luo Xueyun explained simply: "I have long-term orders and need to maintain a fixed output. ”

"It's quite powerful, the average vegetable farmer is in season, and it is not easy to have long-term orders."

Qin Yuanshan thought for a while and said: "It seems that you don't know much about vegetable planting, why did you choose to plant cabbage in the first place, instead of other onions, ginger, garlic, chili cabbage, etc., I will help you analyze and analyze, maybe there is a solution." ”

Considering that the person in front of him is not only an agricultural professional technician, but also has more experience than himself, and the key attitude is very good to give him a sense of trust, so Luo Xueyun decided to say what he thinks.

"There are probably three reasons."

Luo Xueyun thought about and summarized the original choice, and suddenly felt a little in a trance, it turned out that more than three months had passed, and it was really like an arrow.

"The first reason is that cabbage is simple to grow, and every household has a vegetable garden, which means that it is easy to grow and does not need much fine care."

"Yes, the temperature of the cabbage is right, and there is no need to cover the straw with film for planting, and there is no need to build a shelf for growth."

"The second reason is that bok choy has a fast growth cycle, can be harvested in a month at most, and can be planted all year round, which means that if you find a market, you can continue to get profits."

Qin Yuanshan nodded approvingly.

"The last reason is that the cabbage is cheap and home-cooked, you can fry it with some garlic, you can fry it with tofu, and you can fry it with tofu, and you can reduce the greasy when you add it to the meat, as long as it is not too bad, it can always be sold."

Bang bang bang.

Qin Yuanshan couldn't help but applaud and smiled: "I thought you saw that people were selling vegetables to make money, so you covered your head and plunged into it, you didn't understand anything, but I didn't expect that there was still a success, just with these three reasons, it is to grow other vegetables, and you don't have to worry about making money, but it's just ......"

Luo Xueyun said: "Qin Technology has something to say. ”

Qin Yuanshan slowly restrained his smile and said: "There are some things I said, don't like to hear it, growing food and vegetables seems to be work in the field, but the nature is completely different, the former is life, and the latter is business."

If you want to grow and sell vegetables, you must get rid of the deep-rooted hunger consciousness of the peasants, to put it bluntly, most people grow grain regardless of the cost, and they want the fields to be planted with rice and wheat.

One of the reasons is, of course, that food is inevitable after paying taxes for hundreds of years, and the second reason is that they have seen too many famines, and their fear of starvation is far greater than having no money to spend, food can save lives, but money is not. ”

"You have food in your hands, and you don't panic in your heart?"

"Yes." Qin Yuanshan said, "But you have to change your mind when you grow vegetables, what you should think about is that even if you are hungry, as long as this batch of vegetables is sold, you will have money to exchange for food, you only need to consider the cost, market, income and so on."

Just like you now, there is nothing wrong with choosing cabbage as a test of the waters, but after saving the capital, you have to consider further development, and the land of each family is limited, even if there is no continuous cropping obstacle, a year allows you to plant vigorously, but only more than ten stubbles to the sky, and the income can be predicted.

If you change to other vegetables, such as tomatoes, you can plant two crops a year, choose a good seed and plant it appropriately, you can harvest six or seven thousand catties per mu, and the market price is more than three times that of cabbage. ”

If there is no continuous cropping obstacle, it must be the cabbage to make money, because he can burst the seeds through the spirit gathering liquid, so that the cabbage can continue to produce like machine parts......

Wrong!

Luo Xueyun was taken aback.

Such an algorithm is too rough, and the cost of manpower and material resources must be taken into account, such as the amount of spiritual liquid, manual harvest transportation, market sales, and so on.

"Path dependence......" Luo Xueyun muttered.

Qin Yuanshan was drinking tea to moisten his tongue, when he suddenly heard a new word, and said suspiciously: "What did you say?" ”

Luo Xueyun let out a sigh of relief, his eyes were shining, like bright stars, he looked at Qin Yuanshan and said: "Listen to your words, save me ten books, such as listening to Xianle's ears for a while, so that I can't be happy......"

Qin Yuanshan's scalp was numb, and he couldn't help but laugh and said, "What kind of mess is this." ”

Luo Xueyun smiled: "Path dependence, in layman's terms, means that once a person chooses a certain path, no matter whether the path is good or bad, he will habitually stick to this path, like a frog jumping into warm water, even if the water temperature gradually increases, it still likes to stay inside." ”

Qin Yuanshan looked at the young man in front of him, and felt that he had undergone some kind of indescribable change, but he couldn't describe it.

"It's kind of like physical inertia." Qin Yuanshan also smiled, "It seems that you have already figured out the solution?" ”

Luo Xueyun nodded: "Technician Qin's words are really enlightening to me, all along, many things that I haven't thought about and can't understand are clear and clear, and when I harvest my new things in the future, I will definitely bring them to Qin Technology to taste as a thank you, and you must not shirk at that time." ”

"Okay, I'll wait."

Qin Yuanshan smiled, looking at Luo Xueyun's distant figure, doubts surfaced in his mind, is he really just an ordinary vegetable farmer, it seems that many ideas are not ordinary people.

Suddenly, he slammed the table and shouted, "I didn't even ask my name, I'm afraid I won't be able to eat the vegetables he grows!" ”

The tide on the Qiantang River came to me, and today I know that I am me.

To a certain extent, Qin Yuanshan's words played the role of Qiantang Chaoxin for Luo Xueyun, and since his rebirth, he has been exposed to nostalgic slang, even in the city, there are few people who speak Mandarin.

Not to mention that TV broadcasts are shrunk in the city, the Huanggang Brigade is not even electrified, and Luo Xueyun, who has no habit of reading newspapers, is almost completely trapped in the countryside of this era, and when he gradually restricts the strange words that others can't understand and feel unusually novel, he is gradually assimilated by them.

The information he had access to was limited, and it was like being encased in a giant cocoon.

If it weren't for the cultivation of the Dao, which gave him peace and clarity in his heart, as a pre-modern person, he would have gone crazy every day like a child of a metamorphosis.

And what Qin Yuanshan said is far from shocking remarks, but it represents the perspective of those who continue to accept new knowledge, and those words that pay attention to cost calculation and benefit analysis are like allergens, stimulating Luo Xueyun to wake up.

He thoroughly figured out what to do!

From beginning to end, he should rely on it as a barrier, and what he uses to make a living should not be the spiritual liquid at all, but the vast and boundless storage space that will keep it fresh for a long time!

What was the situation when I chose to grow cabbage to start my business?

It's empty hands, and a whole body of clothes full of patches; is penniless, half-full at a meal; It's the cheap dad who doesn't take himself seriously at all, and wants to let himself follow him to farm, honestly listen to his arrangement, and pay for the family.

Luo Xueyun, who urgently needed to change the status quo, saw that the spiritual liquid produced by cultivation could stimulate the growth of plants, just like a person who fell into the water saw a straw and grabbed it in his hand without thinking about it!

But what is the situation now, the little cabbage earns hundreds a day, the red brick house is being built, and the buns are enough, and there are big fish and meat at the two ends in three days.

However, Luo Xueyun was dumbfounded by the little cabbage business that seemed to be on the right track, especially when the five big brother joined in planting vegetables, and the second sister helped to deliver vegetables.

If it weren't for Cao Guoliang's horizontal insertion, he would feel unhappy when he was forced to escort the car; The obstacle of continuous cropping of cabbage makes him unable to make a vegetable to the end, and he doesn't know when he will be sober!