Although there are a lot of people in the greenhouse, there is no skilled hand in grafting. Only Ai Jin'er's craftsmanship can still be seen, but she alone can't speed up the progress much.

When everyone first learned to graft, either the incision was too shallow to fit perfectly, or the hand shook and cut too much, and directly broke the plant, which really ruined a lot of melon seedlings. However, practice makes perfect, and the more you get to the back, the success rate of grafting will gradually increase.

Finally, all the melon seedlings were grafted, and everyone carefully poured root water on them, which woke up Gangu Yu, who had fallen asleep on the side.

"It's all here......" Gan Guyu looked at the sky outside the greenhouse in a daze, and couldn't help but smile bitterly, "Well, anyway, it's done after all." ”

Gan Guyu's words made everyone except Ai Jin'er look ashamed. Seeing this, Gangu Yu snorted and said, "After all, it's the first time! ”

"Teacher, don't worry!" Gu Shanshan immediately expressed her determination, "Next time, I will definitely finish it quickly and well, and I will never let you down!"

"Then I'll see. Gangu Yu smiled, came to the neatly placed grafted seedlings, and began to give birth again. Ai Jin'er beckoned everyone and began to level the greenhouse field.

Growing cucumbers in greenhouses in winter requires a high bed. After deep ploughing of the fields in the greenhouse, the base fertilizer was applied, and the high bed was leveled.

The rows of soil beds were three and a half feet wide and about half a foot high, and planting pits were dug in advance at intervals of about one foot. At this time, the growth of Ganguyu was also completed, and the cucumber seedlings in the bamboo tube had already been cut off by Gu Shanshan, who was accompanying Ganguyu, and the scion roots had grown to a stage suitable for planting.

Ganguyu took a cursory look and found that almost all the plants were successfully grafted, but there were still a few rootstocks that had not been cleaned before, and some real leaves had grown at this time. Together, the grafted seedlings were removed from the bamboo tube, the weak seedlings and excess rootstock buds were removed, and then they were planted on the ridges.

When planting, Ganguyu specially told everyone that the root soil must be slightly higher than the soil bed, and keep the grafting tangent point away from the ground as much as possible, so as not to promote adventitious roots and lead to grafting failure.

After the planting was completed, the fields were again watered with water and covered with mulch.

Then it is time for the cucumber to grow rapidly under the influence of the growth of all things. This is also the busiest stage for everyone, because they need to complete many tasks such as hanging vines and falling vines and applying water and fertilizer while maintaining the growth of everything in Ganguyu.

Lancel led a few people to set up a herringbone bracket for the cucumber, while Ai Jin'er led a few others to hang the cucumber vine with a cotton rope, and did so every few knots that grew, and for a time it was very busy.

Cucumbers don't like high humidity, so there are two wind mages among Ganguyu's students, and they take on the task of ventilating the greenhouse at this time. The long side vines and tendrils were also removed in time to ensure the nutritional supply of the main vine.

Soon, small bright yellow flowers bloomed one after another. Seeing this, Ai Jin'er hurriedly beckoned everyone again, preparing to start artificial pollination of cucumbers.

Cucumbers are monoecious, and they are easy to distinguish because the rudiments of cucumbers can be seen below the female flowers. In general, cucumbers can be pollinated without human assistance, but in winter greenhouses, it is clear that manual pollination can increase cucumber yields.

Manual pollination is also very simple, just pluck the male flowers, remove the petals, and leave only the stamens to gently wipe the stigma of the pistil. At the same time, artificial pollination can also achieve the purpose of emasculation, so that cucumber plants can have more nutrients for melon bearing.

But this time, Gangu Yu stopped everyone from pollinating.

"Why is that?" Ai Jin'er looked at Gangu Yu in confusion.

Gangu Yu smiled and didn't answer, and the growth of all things didn't stop. After a while, at the bottom of many cucumbers, the small cucumbers had begun to expand rapidly.

"You don't need to pollinate the melons manually?" Ai Jin'er exclaimed in disbelief, "How did you do that? Could it be that the wind just now also helped pollinate the cucumbers?"

Seeing her surprised appearance, let alone Gu Shanshan, most of the people present suddenly felt inexplicable happiness in their hearts. Lancel was as careful as a hair, and saw the subtle expressions of everyone in his eyes, but he was silent, not knowing what was going on in his heart.

In fact, whether this cucumber has pollinated or not, Ganguyu does not know. All he knows is that the winter cultivar he chooses can produce parthenogenesis even without pollination.

Parhenocarpus is a phenomenon that occurs in the growth and development of cucumbers, that is, melons can be set without pollination.

Parhenogenesis occurs because cucumber varieties used for winter and early spring cultivation have female flowers that produce higher levels of endogenous auxin without pollination, causing cucumbers to bear fruit.

Unisexual cucumbers do not form seeds, and plants do not need to consume this part of the nutrients, so the plant grows more vigorously, bears more melons, and the yield naturally increases significantly.

Because cucumbers lack insect pollination when cultivated in greenhouses in winter or early spring, parthenogenesis is very important for protected area cultivation. Because light affects the ability of parthenogenesis to set seeds, Ganguyu does not provide shade for cucumbers throughout.

In addition, the cucumber varieties of Ganguyu have also been optimized by the seed and seedling cultivators, and its parthenogenesis ability is more vividly reflected.

Seeing that Ai Jin'er was still standing there thinking hard with an expression of "this is not scientific", Gan Guyu couldn't help but remind: "The roots and melons have grown, what are you still standing stupidly for?"

"Ahh But this time, her arrogant attitude finally got a little restrained.

The root melon is the bottom of the cucumber plant, and it is also the earliest melon that bears fruit. Root melons will take up a lot of nutrients from the plant, but they often do not grow much, and the shape of the melon is not good-looking, and it will also affect the continued growth of the plant and other female flower fruits.

Therefore, root melons need to be harvested early to allow the upper melons and vines to continue to grow.

The cucumber plant continued to grow after picking the root melon, and at the same time, everyone also applied a hanging fruit fertilizer to it. When the cucumber vine grows tall enough, everyone does not forget to prune the fallen vine.

In a short time, long strips of dark green cucumbers were hanging all over the vines. Ganguyu stopped the growth of all things in a timely manner, marking the successful completion of the cucumber planting task.

He approached the melon vine, picked a large cucumber and wiped it, and then took a bite of it.

Under the quiet gaze of everyone, Gangu Yu nodded, picked another cucumber, and threw it directly somewhere behind him: "Stinky lady next, this big cucumber is rewarded by my brother!" (To be continued.) )