It turned out that before Liu Yi went to the street to buy vegetables, he instructed the fourth brother to help them transport the equipment to the orchard greenhouse. Old man Su and a group of professors and students were eager to assemble the equipment as soon as possible, so when the fourth brother Liu Yong had not left, he asked them again to help move to the predetermined location first, and then after several debugging work, it was successfully completed before lunch.

So when Liu Yi asked Old Man Su's laboratory, Old Man Su looked triumphant and invincible, but as soon as his expression was revealed, the students around him who followed him to practice were stunned, is this still Principal Su with a serious face?

Many classmates are now more interested in Liu Yi, including two beautiful female students sitting in the pile of classmates, but these Liu Yi don't know anything, he seems to be a little wooden and slow to respond to the relationship between men and women!

Old man Su also quickly found out that something was wrong, the image he had always maintained could not be ruined at this time, so he began to point at Liu Yi with a very serious face and said: "I haven't officially introduced it to you yet, this is the owner of these buildings, and he is also the investor of our time fruit tree laboratory, and that orchard is what he has to say, so I can't help but be nice to him, don't you say?" ”

Before he finished speaking, some of the students below had already laughed, and many of them pursed their lips and laughed, but looking at them covering their mouths and holding back their uncomfortable appearance, Old Man Su himself laughed.

After a whole look, he looked right: "Okay, classmates, lunch is over, the purpose of our coming here today has not been done, and there are still tough battles for us to fight today and tomorrow." We can't help but hurry! ”

The tough battle that Old Man Su said is that a large orchard needs to be grafted urgently, there are so many experts and professors around, these students don't just learn real things in the process of practice, even the villagers can steal a teacher or two, and fight down!

First of all, Liu Yi arranged for the fourth brother Liu Yong to organize the villagers to find tools for cutting trees, there were a lot of people this afternoon, and there were really a lot of tools needed.

It is comfortable for someone to start, and after telling the fourth brother to do the things, he himself followed Old Man Su and Professor Yigan to visit the fruit tree laboratory in the orchard.

Walking into the room, where there were only a few cases and everything else was empty, is now basically refurbished. Liu Yi didn't know any of these devices. However, looking at the new Zhanzhan neatly arranged against the wall, the middle is still very spacious.

This room is about 100 square meters, and the research on the consequence tree was mainly done in this room, and there are several houses in which things are also placed. An office. A lounge. There is also a sealed room.

Old man Su looked at Liu Yi with some doubts and said casually: "This is a separate laboratory for some experiments, and the whole house may have to be rectified in the future, and it must be changed to be able to regulate temperature and humidity...... of the room. so that the experiment can be carried out smoothly. ”

Liu Yi will not be stingy in doing fruit tree research, and after listening to Old Man Su's words, he made a decision on the spot: "Tell me how much money you need at that time, and I can use it for vegetable breeding in the future!" ”

The whole house market square meter, thinking about how much area you can plant if you breed! He will never bother with breeding again, which is a real win.

Just a few rooms, Liu Yi lost his curiosity after turning around, he didn't do this fruit tree research related work, these very precious equipment in the eyes of professors and students are very ordinary things in Liu Yi's eyes!

After a while, the fourth brother found Liu Yi and said that the tools were ready, just waiting for the experts and professors in the university to guide everyone, these villagers were also very excited, the last time the experts told him some daily fruit tree management, they benefited a lot, this time how many people think about it and learn a lot of things!

Their guess was correct, and Liu Yi also wished that everyone in the future would be an expert who could manage the orchard on their own. Therefore, when the fertilizer of some fruit trees has not been applied, Liu Yi decided to suspend the fertilization and fully cooperate with the command of these experts, and it is up to them to learn how much they can learn.

Before walking to a fruit tree, this is a citrus tree ready to be grafted, the main product of Shancheng is citrus, this year Liu Yi is ready to graft all these citrus trees that can be grafted, the original are backward and eliminated varieties, the quality is not good, not to mention the low price of selling.

This time, several professors who followed the team included Qi Hedong, Xia Kaiwei, Yuan Guanfeng and Gu Xun. Professor Qi Hedong taught that one of the courses in his teaching was fruit tree grafting, and he himself was an expert in fruit tree grafting.

Before everyone could start cutting down the branches, he went to the fruit tree and pointed to the fruit tree next to him, and told his classmates and villagers who were surrounding him: "We have long talked about grafting, especially the grafting of fruit trees, and there are many methods. There are many grafting methods, according to the utilization of scion, bud grafting and branch grafting; According to the different grafting parts, it is divided into root grafting, rhizome grafting, double grafting, ventral grafting, and high grafting; From the form of interface, there are splitting, cutting, insertion, intercalation bud grafting, tongue grafting, leaning grafting, etc., but the basic grafting methods are bud grafting and branch grafting. ”

Seeing that some of the villagers didn't understand the technical terms he said, even Liu Yi couldn't figure it out, so he simply ignored them and continued: "For these fruit trees, we take different ways. ”

"1-3-year-old young tree grafting, generally using seedling grafting method, grafted seedlings begin to bear fruit early, can maintain the excellent traits of the variety. For rootstocks that are more than 3-5 years old, with a large crown and more branches, multi-head high grafting is generally adopted, that is, according to the branch distribution of the original crown skeleton, more branches are grafted at higher parts to reduce the crown as little as possible. ”

Pointing to the citrus trees beside him: "For this kind of larger tree, the grafting part should be in accordance with the principle of long main branches, short side branches, and obvious master-slave relationship, as many joints as possible on the backbone branches, and the bare bare belt should be filled with ventral joints; Except for the main side branches, the length of the cut branches at the grafting parts of other branches is generally about 15-20cm away from the parent branches, the thick branches are slightly longer, and the thin branches are slightly shorter; The diameter of the interface should generally be selected at 3-5cm, and the thickest thickness of the older tree should not exceed 8cm. ”

All kinds of data came from Professor Qi's mouth, and the students and villagers around him were fascinated by it, and some villagers may still be eager to find a pen and paper to write down all the words he just said!

After everyone eased up a little, Professor Qi said: "Now I will talk about the best period for fruit tree grafting, generally speaking, in early spring, before the rootstock buds germinate or when they begin to germinate and do not show leaves, too early will slow wound healing and easy to be damaged by bad weather or diseases and insects, too late will easily cause the tree to weaken, and even die in winter." In practice, spring grafting is most suitable from 10 days before budding to the germination stage, and it is better to survive grafting in high temperature and sunny weather. ”

"And this is the right time for us to graft fruit trees, you can see that there are spores on the branches of this citrus tree, but the leaves are basically not extended, according to the weather forecast, the weather has been good for the past few days, so we chose to come here today."

It is said that Old Man Su suddenly attacked this morning, it turned out that there was such a reason, and Liu Yi suddenly realized now.

Professor Qi took the firewood knife handed over by a student, and said to the people around him: "Having said so much, the next thing is for me to show you the practice, and if you don't understand anything, you can come down and ask me." ”

After speaking, he took the citrus tree whose trunk was taller than him as an example, first saw that he climbed a large number of old people to climb the middle of the main branch of the fruit tree and step on it steadily, and then he cut some branches around the main trunk of the citrus tree, and left a large branch or a branch with better growth after the most lucrative one.

"The main thing I do is to get rid of unnecessary and excess branches, and keep the branches that are good for future growth according to the distribution and growth of the branches, so that the fruit trees can bear fruit in the future. Later, we will graft the best varieties on these reserved branches. ”

Saying that, I brought some branches of citrus trees, which are fresh and excellent varieties of branches, which will be used for grafting of citrus trees.

Replaced with a smaller, sharp knife, it looks very sharp.

"Below you also see how I graft these branches, when grafting, each section of the branch that is about to be grafted to the fruit tree must have a spod, otherwise it is easy to cause dead buds, and the grafted fruit tree branch is dead, so you must pay attention when grafting." These words must be known to college students, and Liu Yi felt that Professor Qi mainly said them to the villagers.

Professor Qi took a sharp knife and made a cut on several branches of the fruit tree, and he didn't graft the whole book, but just gave everyone a demonstration. After finishing it, I picked up the excellent varieties of citrus branches I had just brought, cut out a section according to each spor, and cut one end into a triangular shape for later use.

In this way, the branches of the excellent varieties cut into triangles are inserted into the opening of the tree just cut, and this process should be paid attention to must be tightened, and there can be no gaps left between the two branches of the grafting, otherwise the survival rate is worrying!

After doing all this, the last thing is to wrap plastic film, and in some places grafting fruit trees is to use sealing wax, which can seal the air and help the branches to survive. However, Liu Yi has too many fruit trees, so the cost of using it is too high and it is not cost-effective.

After a while, under Professor Qi's hands, several branches were grafted by him. The students who came over also put forward a lot of insightful opinions that were worth scrutinizing and being answered by Professor Qi one by one, and even a few bold villagers raised questions that seemed like jokes to them, but Professor Qi still patiently explained, which won the villagers' great favor and admiration!

However, Liu Yi thought in his heart that as long as these special fertilizers can take their due effect, whether it is an old and declining old tree or a slightly sick fruit tree, it will get better. (To be continued......)

PS: It's hard to code words, especially for newcomers with two chapters a day, it's more difficult to code out after work, I think the novel is okay, please like it, vote for a few recommendations, and book friends with conditions vote for a monthly ticket, and give a small reward! Thank you! Today's Double Festival, I wish all friends a happy Lantern Festival on Valentine's Day!