Because it is the first year of planning, so the orchard is not big, Chen Xu followed a steward in charge of the orchard to check the hillside next to each other, and found that the survival rate of the grafted small saplings is indeed not too high, but Chen Xu is very satisfied with the attitude of a group of students from the College of Agriculture, and many fruit tree saplings have been pruned and no longer grow at will like the previous fruit trees.

Cuttings, grafting and pruning are the most common means of plant propagation and cultivation.

In order not to change the traits of the mother plant, cuttings are the best means of propagation, and the fruit trees from cuttings are almost exactly the same as the mother, which is equivalent to the simplest cloning technology, so that the fruit will not have traces of degradation, the most common and obvious of which is grapes.

Of course, the excellent grapes are still in the Western Regions and have not been introduced back, and there are only mountain grapes in the Central Plains, not to mention the low yield, and the ripening time is also messy, which is not a high-quality fruit, and can only be used to make wine and vinegar.

Grafting is not to ensure the original appearance of the fruit, but to improve, it is a hybrid technology, some plants of the same family are grafted with branches, and some improved new varieties of melons and fruits can be obtained, such as increasing sweetness, increasing volume, enhancing taste and so on.

As for pruning, topping and thinning, the purpose is to increase yields.

Chen Xu remembers that when he was a child, he followed his father and mother to overtop the rape flowers, that is, to remove the top main flowers before the rape blooms in spring, so that more branches will grow.

Then I also saw my mother planting sweet potatoes with cuttings.

Although these rural areas are common, Chen Xu is not particularly familiar with them, and his hands-on ability is not strong, if you let him graft a tree, it is estimated that it will hang up nine times out of ten, but it does not prevent him from knowing these principles and methods.

Therefore, after the establishment of the College of Agriculture, Chen Xu took the time to give a few lectures, the content was very simple but very comprehensive, that is, to put forward various cuttings, grafting, pruning, hybridization and other cultivation methods to improve plant yield, and even specifically mentioned the hybrid cultivation of wheat and rice.

At present, the main rations of the people of Daqin are wheat, millet, soybean, millet and rice, which are collectively known as five grains.

Wheat is wheat, this crop is mainly planted in the Central Plains, dry land planting, generally planted in winter and harvested in summer.

Millet is millet, which is also cultivated in the Central Plains, but it requires water and is a semi-dry crop.

Soybeans are grown in dry fields like wheat, but they are planted in spring and harvested in autumn.

Millet is mainly planted in the north, that is, sorghum rice, which is more unpalatable, but it is better to grow high and strong vitality, and it can grow on wasteland, so it is the staple food of northerners.

Rice is rice, which is mainly cultivated in the Yangtze River Basin.

Although China is an ancient agricultural country, agricultural planting has developed for one or two thousand years, but in fact, due to the lack of tools, the mode of farming is very primitive and backward, basically slash and burn, put a fire in winter to burn the plants and weeds, dig pits and sow seeds in the field in the spring, do not plough the land and do not plough the ground, nor do they specialize in fertilizing and fertilizing, at most weeding and watering, the yield is very low under this simple planting method.

Agriculture is the most developed in the Central Plains, but the yield of one acre of land will not exceed two stones, and the yield of rice in the south is even lower, only about one stone.

Therefore, in the teaching of the College of Agriculture, Chen Xu specifically mentioned the cultivation of wheat and rice, two staple foods.

Wheat is still the main promotion of Qinghe Town's set of methods, deep ploughing and accumulation of manure strips and ridges between sowing, enhance ventilation and drainage and other measures, through two consecutive years of promotion, wheat and other dryland crops of this planting method has been very acceptable, at least Chen Xu came to Nanyang and Xianyang, the road to see a large area of wheat fields are almost new farming methods, winter wheat is very gratifying, including the current fiefdom is the same.

The most important thing is that Chen Xu mentioned the hybrid mode of rice, that is, like wheat, select improved varieties, and then pollinate and hybridize with some wild rice, and repeatedly select varieties with large ears and full grains to resist insect pests and lodging resistance for special experimental field sowing, so as to obtain high-quality and high-yield rice varieties as the goal.

For Chen Xu, Daqin's main development tasks at the moment are two, one is reform, abolishing many harsh laws so that the people can take a breath, and the second is grain, constantly increasing the output of grain, so that the people can talk about other development on the premise of having a full stomach.

People take food as the sky, and eating is the most important thing now.

For these bizarre cultivation methods and theories proposed by Chen Xu, the students and teachers of the College of Agriculture were very excited, and even a little crazy.

Most of them are farmer apprentices who regard Shennong as the originator, and they like to study the cultivation and cultivation of various plants, hoping to find more ways to produce high yields of grains and fruits.

Chen Xu's lectures only refer to the direction and goals they pursue, and also put forward many practical and feasible methods.

Cuttings have existed since ancient times, although the theory of grafting is not systematic, but there have long been agronomists in the study of the people, although the methods of pruning and topping to increase yield have not been heard, but this phenomenon is commonplace, cut off the crown of a tree, more branches will grow around it, but everyone has not studied it carefully.

As for the theory of hybridization, it is also well understood.

Chen Xu once gave an example in class.

If a tall man marries a beautiful woman, the child born inherits the respective advantages of the parents, and may be very tall and handsome, if a short and thin man marries an ugly woman, the child born can be roughly inferred to be ugly, and may even inherit the shortcomings of both parties, short and ugly.

So this union of human men and women can be seen as a means of hybridization.

The same is true for crops, where tall and strong males and sturdy females are constantly selected and crossed, and finally it is possible to breed high-quality varieties with high yields and strong strengths.

Of course, the cultivation of improved varieties is not something that can be seen in one or two years, and it is in a wild era like Daqin, so Chen Xu also disdains to do this kind of thing, and he doesn't have the time to do it, let alone the mood and energy to do it, he has too many things to do at the moment.

He set up a scholarship of 300,000 yuan at the College of Agriculture.

This scholarship is open to students in all disciplines in the Faculty of Agriculture.

Regardless of time, place or field, all students who can carefully study and study seriously will be selected by the whole college every year and receive a scholarship of up to 1,000 yuan, and the College of Agriculture recruits students from poor families all year round, in addition to exempting tuition fees and providing room and board, once they graduate, they will be recommended to the household department and counties to serve as officials, which also greatly stimulates many young people from poor families to enter the College of Agriculture to study.

In addition to the scholarship of up to 300,000 yuan, Chen Xu has launched their own scientific research plans for each department, the teaching and professors put forward their own research projects, and the college will give a start-up fund of no more than 10,000 yuan after the evaluation of the project, and then the project can be officially launched, and the teaching and professors serve as the project leaders, lead their students to carry out experiments, and give a one-to-three-year inspection period according to the different project fields, if the research makes a breakthrough, All those who participate in it are rewarded with a lot of money.

The same is true of the School of Engineering, not to mention that the School of Engineering was originally a subordinate college of the Ministry of Engineering, which happened to be under the jurisdiction of Chen Xu, so the reward set is higher, and the research direction is not limited.

Stimulated by Chen Xu's large amount of money, both the students of the College of Agriculture and the College of Engineering are now crazy, and many teachers and teachers are also crazy, desperately studying the content and questions that Chen Xu usually talks about in class.

In the orchard, a group of young girls with flowers and branches walked and watched, and by the way, inspected some grafted fruit trees, and a group of people slowly climbed to the top of the mountain.

"If you're tired, let's take a break!"

Chen Xu looked at Ying Shiyan and Meng Wan, two wives who didn't go out often, who were tired and sweaty slightly, so he chose a meadow full of wild flowers and sat down.

"Husband, you just said that different fruit trees can grow some new fruits with different flavors after grafting, I have never heard of this kind of novel theory, plums can be grafted on apricot trees, so what grows is plum or apricot?"

Ying Shiyan, who especially likes all kinds of novelties, knelt beside Chen Xu and whispered.

"The fruit of plum branches grafted on apricot trees is still plum, but it may combine the characteristics of apricots, such as becoming more sour and soft; However, if the apricot tree is grafted on the plum tree, it will still grow an apricot, but the taste and size may also change...... Shiyan, I'll help you plant a flower! ”

As Chen Xu spoke, he casually plucked a red wildflower from the grass and inserted it in Ying Shiyan's hair.

Ying Shiyan's cheeks instantly turned crimson with happiness.

"Husband, I want it too!" Meng Wan also squeezed over and lowered her head to compete for favor.

"Well, husband will help you insert one too!" Chen Xu smiled and plucked a peach blossom from a falling branch next to him and inserted it in Meng Wan's ear temples.

"The peach is dying, scorching its flower, and the son is home, and it is suitable for his room. Hehe, Wan'er, this is your favorite song to sing, today's song is like its person, the peach blossoms on the human face are red, and you are really matched! Chen Xu looked at Meng Wan's delicate and beautiful little face, and felt that he was instantly a little emotional.

Although it is small, it still wants to cuddle and touch and nibble a few bites, and this beast impulse is now getting faster and faster and cannot be suppressed.

"Thank you for the compliment!" Meng Wan's little face was blushing and excited.

"Husband, which fruit trees can you graft with each other?" Ying Shiyan, who loves to learn, has a gentle personality and does not like to compete for favor, but is full of various curiosities about grafting.

Chen Xu shook his head and said with a smile: "This is more complicated, generally depends on the similarity of the fruit, the more similar the two fruits grafted, the easier it is to survive, such as apricot trees and plum trees, such as begonias and apples, but this is not absolute, it takes continuous experiments to summarize the rules, now this orchard in a few years, we can eat a lot of new fruits with different flavors, and in fact, about grafting, there is a very poignant legend!" ”

Seeing Ying Shiyan's still curious expression on her face, Chen Xu decided to sacrifice the storytelling method again to divert Ying Shiyan's curiosity, otherwise if she continued to ask, the spring flower appreciation would soon become a popular science lecture.

Sure enough, as soon as she heard that there was a new legend, not only did Ying Shiyan leave the question she wanted to ask, but a group of little maids and Xing'er Yu Ji also surrounded them together, and sat on the grass obediently one by one to listen to the story. (https:)

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