Gangu Yu wanted to go to the college library to rummage through it immediately, but reason finally slowed him down.

The library of the Cyprus Wizard Academy is full of collections, and it can be said that it is the place with the most complete books and the most concentrated knowledge in the salty continent today. But if you want to enter here, not everyone can do it.

Members of the Supreme Council of the Academy may enter the library once a year for a maximum of seven days at a time. Tutors officially hired by the college can enter the library once a year for a maximum of three days at a time.

Otherwise, it can only be accessed by consuming House Contribution Points, which can be exchanged for 20 House Contribution Points for seven days in the library, and 50 for a whole month.

Gangu Yu originally had 21 academy contribution points, plus 2 points obtained from the last prescription for Madison's burn treatment, and now has a total of 23 points. According to his meaning, he naturally wanted to make up 50 academy contribution points, which was much more cost-effective.

However, when Pei Pei learned about this, he wanted to hand over his 20 college contribution points to Gangu Yu, and Liang Yue and other beauties in grass skirts also said that they could help him make up the rest of the part. However, this was naturally rejected by Gangu Yu.

Not to mention that he didn't know if there was any information he needed in the library, and even if he did, he wouldn't be able to let everyone escort him in. Now that vitamins are still on the cusp, many things are inseparable from him, and if he goes to the library to retreat for a month, it is difficult to say what will happen outside when he comes out.

And there is another important reason, that is, the mid-term combat power test is about to begin. This is an important test that accounts for 15 points in the final score of the school year, and Gangu Yu naturally cannot miss the test.

So he could only put this matter aside for the time being, calm down and do what should be done most at the moment. Anyway, if there is something he needs in the library, it can't be gone after a while, right?

So. At this time, Gangu Yu was in the greenhouse, demonstrating the cultivation of vegetables in the greenhouse for Liang Yue and others.

"The so-called greenhouse is a facility that can transmit light, heat preservation and warming, and is used to cultivate plants, mainly used for the cultivation or seedling of plants such as vegetables, fruits, flowers and herbs in low-temperature areas or low-temperature seasons. ”

Gangu Yu patiently explained to the women: "Through this greenhouse. We can control the temperature of the land in general. If the temperature is too high, open the greenhouse to ventilate and cool down. ”

All the girls nodded in unison like well-behaved and obedient students, and their eyes never left the eloquent Gangu Yu.

"However, the management of vegetables in greenhouses is also much more complicated than ordinary field management, so I will briefly explain a few common sense......" Gan Guyu then introduced some key points of planting plants in the greenhouse to the women.

The most common problem in greenhouses is fertilizer damage. The temperature in the greenhouse is higher and the humidity is higher, so the decomposition of organic fertilizer will be faster. Fertilizer efficiency will also be higher.

In such a situation, if the amount of fertilizer is too large, it is easy to cause the various salt content in the soil to be too high, and the plant roots will be dehydrated and die due to the imbalance of osmotic pressure. Therefore, the fertilization structure in the greenhouse is different from that in the open field, and more attention is paid to the balance of soil nutrients.

Considering that Liangyue and the others will definitely be asked to carry out the fertilization work in the future, Gangu Yu explained this part in detail, and explained for a long time how to infer the fertilizer effect from some characteristics of the plant. He also invited several beauties in grass skirts to show the growth of all things several times, and specially planted plants for physical display.

The second is the reasonable dense planting in the greenhouse. The crops in the greenhouse are also not left, and the more seedlings remain, the higher the yield. Only reasonable dense planting can make full use of the soil, heat, light, water and other conditions of the greenhouse.

In order to make full use of the space in the greenhouse. Most of the greenhouse vegetables adopt the management method of dense planting in the early stage, thinning plants in the middle stage, and thinning branches in the later stage, and it is appropriate to have the leaves and branches not crowded moderately.

Therefore, those plants that are suitable for three-dimensional planting can make full use of the resources in the greenhouse. That's why plants such as tomatoes and cucumbers can be produced in greenhouses.

Speaking of which, Gangu Yu directly set up a simple frame in advance with thin bamboo poles in the greenhouse, and demonstrated the whole process of tomato planting for the women.

Considering that he would hand over all the greenhouses to Liangyue in the future, he did it very slowly this time, and stopped from time to time to explain to everyone during the period. Even Peipei, who has already witnessed Gangu rain growing tomatoes once. This time I listened to it with relish.

Because of the optimization of the seed and seedling incubator, Ganguyu does not have to worry about the emergence rate of seeds and pests and diseases, and saves the procedure of soaking and disinfection as usual, and directly starts from seedling raising.

Pei Pei followed Gangu Yu's instructions and controlled the water element to infiltrate the seedling planting bed he had arranged in advance. Ganguyu then sowed the tomato seeds on the sowing bed and covered them with a finger-thick layer of fine soil.

"Generally, the seeds that my brother takes out, even if they are not covered with film, can germinate in about three days on this seed bed. "When the tomato seedlings have grown one leaf and one heart, the seedlings should be separated and transplanted to the ridges." This growth stage does not take long, and it could have been allowed to grow naturally. But let's be in a hurry today, so Sister Liangyue, you can grow all things once, and remember that you can stop when the seedlings are one leaf and one heart. ”

Liang Yue immediately asked, "What is a leaf and one heart?"

"It's when the first true leaf and a terminal bud grow. As soon as Gangu Yu finished explaining, she immediately found that she seemed to have to explain to her what true leaves are and what cotyledons are, so she couldn't help but have a big head, and quickly continued, "You give birth first, and you stop when I stop you." ”

Liang Yue bowed slightly, and the chanting of the long-lost natural magic spell lingered in the greenhouse. Soon, a field of vigorous seedlings emerged from the tomato planting bed. After Gangu Yu signaled Liangyue to stop casting, he first briefly introduced the cotyledons and true leaves for everyone, and then commanded the women to start dividing the seedlings.

Tomato seedlings are also very particular, if the size of the seedlings is different due to uneven germination, it is also necessary to transplant the large seedlings to the south side of the greenhouse, and the small seedlings to the north side. However, Ganguyu's tomato seedlings do not have this problem, and all of them are seedlings that are growing well.

But this method of transplanting seedlings needs everyone's attention. The stem of the seedling is delicate, and it is easy to cause damage if you pinch the seedling by hand, the correct way is to pinch the cotyledons of the seedling by hand, and then put it into the seedling ****.

Following Ganguyu's demonstration, the people transplanted the tomato seedlings on the ridges of the fields. Peipei then watered it with rooting water, and the whole seedling division work was completed. (To be continued.) )