With the assistance of Mo Qingyan and Qin Lan, Chen Xin's harvest of 600 catties of vegetables this month was quickly collected from the ground, and was packed in the box brought by Qin Lan and put on the car they drove.

"Then we'll go first, Ah Xin, take care of yourself." At the door of Chen Xin's refuge, Qin Lan looked at Chen Xin and had the heart to say something to him, but felt a little difficult to speak.

"Well, Ah Lan, you are the same, now this environment is not as dangerous as before, your work itself is dangerous enough, and now you must pay more attention to safety." Chen Xin saw that Qin Lan cared about him, and he was still very careful and also told her.

Qin Lan nodded, and was about to leave without saying anything more, but when she walked out of the gate of the shelter, she glanced back, and couldn't help frowning and said, "Ah Xin, the gate of your shelter should be reinforced, and you should do some camouflage outside." Like you said, now the environment is not as good as it used to be, you ...... Stay safe. ”

"I see, I'll take care of it later." Chen Xin nodded, he was actually already thinking about the problem Qin Lan said, but it was not included in the top priority.

Seeing that Chen Xin listened to his words, Qin Lan also nodded, and then got into the car, started the car and prepared to leave.

"Ingredients, remember to leave me a little when the carrots are harvested next month, and I'll exchange Raffi with you!" When leaving, Mo Qingyan didn't forget to poke her head out of the car window and place an order with Chen Xin.

"Got it!" Chen Xin responded, watching them walk away, then turned back to the shelter and closed the door again.

Chen Xin, who returned to the inside of the shelter, could not contain his excitement, and ran directly into the planting greenhouse, preparing to upgrade the greenhouse.

"Simple Growing Greenhouse"

"Upgrade option 1: increase drip irrigation system, increase hydroponic planting trays, crop yield +10%, irrigation water consumption -10%, upgrade required survival point 2000"

"Upgrade plan 2: increase the planting area, improve the efficiency of supplementary lighting, crop yield +10%, light time -10%, and upgrade the required survival points 3500"

"Do you provide materials such as steel, cement, fill lights, micro vacuum pumps, PVC pipes, PVC hydroponic planting trays, etc. for upgrades?"

"Option 1 materials have been provided, the survival points required for upgrading have been reduced by 90%, and the survival points required are 200 points"

"Option 2 materials have been provided, the survival points required for upgrading have been reduced by 90%, and the survival points required are 350 points"

"Plan 1 and Plan 2 upgrade materials are met at the same time, the survival points required for the upgrade are reduced by 150 points, and the survival points required are 400 points, do you choose to upgrade?"

Faced with the text brushed out by the system, Chen Xin undoubtedly chose to upgrade, and this also used up all the 400 survival points he currently has in his hand.

And with Chen Xin's choice to upgrade, the entire planting greenhouse was also shrouded in the light of the upgrade that Chen Xin had already seen twice.

And this time, not only the greenhouse, but also the various materials that Chen Xin placed in the storage room and garage were also covered by the light, and turned into points of light and converged into the greenhouse.

When the light of the upgrade in the greenhouse dissipated, what appeared in front of Chen Xin was that the area had been doubled, and there was an additional layer of hydroponic planting tray hanging from the ceiling, which seemed to be much more advanced than the previous planting greenhouse.

The increase in planting area and the emergence of hydroponic planting trays are very intuitive changes, while the greenhouses have become more advanced is a more subjective feeling.

After all, in the absence of the improvement of the level of science and technology, it is necessary to rely on people's subjective judgment to distinguish whether something is advanced or backward.

But looking at the clean and tidy after the upgrade, the fill light that has been upgraded from a large lamp to a lamp tube is soft and bright, the fields are standardized and neat, and even the crooked carrots planted by Chen Xin before have been replanned into a straight line of planting greenhouse, Chen Xin does feel a kind of "fan" called advanced.

The greenhouse in front of him no longer looked like the ordinary shelter planting greenhouse that Chen Xin had made before, but more like a plant planting laboratory.

But even so, the role of this greenhouse is still to grow crops and obtain food.

So no matter how good it looks, for Chen Xin, the most important thing is that the upgraded greenhouse is easy to use.

Originally, the ground of Chen Xin's greenhouse was directly soil, and it was Chen Xin's own ridges that were used to divide the land, and there was no planning.

But now the 200 square meters of planting area, the land has been evenly divided into eight rectangular pieces of land, which looks much more regular.

Standing between the ridges, Chen Xin reached out and grabbed a handful of soil from the ground and rubbed it with his hands, wanting to check the quality of the soil.

It seems that even the soils were affected when they were upgraded, and these soils seem to have been upgraded.

Originally, the soil in Chen Xin's greenhouse was obtained by him from a nearby farmer's vegetable garden, and it was cooked soil itself, and it was carefully cared for, which was suitable for crop planting.

However, compared to the soil in the current planting greenhouse, the previous soil is obviously grayer in color, and the contrast is quite obvious.

Now the soil in the greenhouse is dark and shiny, the soil is delicate and fluffy, and there is even a feeling of picking up the oil when you pinch it with your hands, which makes people feel a fertile feeling at a glance.

Although Chen Xin didn't know much about the soil, he could probably guess that this should be the most fertile black soil in the north of the Yan Country.

This was much better than the soil he had used before, this natural treasure given by nature to humans was very suitable for growing crops, and the entire Blue Star even had only three pieces of black soil.

The changes in the soil gave Chen Xin a deeper understanding of the power of system upgrades, and he did not think that upgrading the greenhouse would upgrade the soil together, or upgrade it to this kind of black soil that is most suitable for crops.

In addition to the change in soil quality, the most noticeable change in the planting greenhouse is, of course, the hydroponic planting tray hanging from the ceiling.

Among the materials that Chen Xin exchanged before, there was a set of hydroponic planting equipment, including hydroponic planting trays, nutrient solution circulation pipelines and micro vacuum pumps, but these exchanged equipment were obviously not as good as the same type of equipment provided after the system upgrade.

Although the hydroponic planting tray is called a tray, it is not actually a tray, but is composed of two parts: a nutrient solution trough and a planting plate.

The hydroponic planting tray that Chen Xin exchanged is a very common plastic tray, and the planting board is a grid-like board, which looks ordinary and feels rough to the touch.

However, after the system was upgraded, the tray became an integrated sink, and the planting board became a more professional planting board with a slot, especially the color was changed to white by the system, and the touch felt smooth and round, so it looked exceptionally clean and tidy.

The bracket is also equipped with a pipe for circulating the nutrient solution and a fill light to provide light for the underlying plants, so that the lighting of the lower crops will not be affected by the shading of the hydroponic planting tray.

Chen Xin reached out and grabbed the bracket hanging from the ceiling, and tried to shake it, but found that the bracket was quite stable and did not shake at all, and it seemed that the quality of the things after the system upgrade was also quite good.

After inspecting the upgraded planting greenhouse, Chen Xin also began to prepare for the use of hydroponic planting system, although hydroponic planting is said to be hydroponic, but it is not really only water.

Although it is said that only aquatic crops can grow, they do not grow well, and the harvest is even more unfortunate.

Therefore, under normal circumstances, hydroponic planting requires adding the blended nutrient solution to the water to provide various trace elements needed for crop growth.

Chen Xin naturally knew this, so when he asked Mo Qingyan to help him exchange materials, in addition to a set of equipment needed for hydroponic planting, he also exchanged for a large bottle of concentrated nutrient solution.

This nutrient solution is a plant-grown universal nutrient solution and is a highly concentrated version, which only needs 30 ml to make four liters of nutrient solution according to the instructions on the package.

The capacity of this bottle of highly concentrated nutrient solution is 1.8 liters, which is enough for Chen Xin to use for several years according to the area of Chen Xin's current greenhouse.

After checking everything and being very satisfied with the planting greenhouse after the system upgrade, Chen Xin prepared the nutrient solution and began to prepare for breeding.

Hydroponic farming is different from soil planting, which directly sows seeds into the soil, and the crops will sprout and take root on their own.

However, in the case of hydroponic planting, even if there is a planting board, it needs to be bred in advance, and the roots and leaves have grown before they can be moved to the nutrient solution tank for planting.

Fortunately, Chen Xin planted cabbage and lettuce, the breeding of these two crops is not complicated, you only need to remove the planting board, put seeds on the sponge used to fix the plant in each slot, and then water and prepare the nutrient solution to keep the sponge moist, you can wait for the seeds to germinate.

When taking the planting plate off the support, Chen Xin also noticed that there were still some problems with the installation height of the hydroponic planting tray.

The ceiling of Chen Xin's planting greenhouse is two meters and five meters high, although it feels a little short, but there is still no problem when Chen Xin used it before.

However, after the upgrade, there are more hydroponic planting trays, and the height of the hydroponic planting trays is about one meter and a half from the ground, which causes Chen Xin to be unable to straighten his waist when taking care of the lower crops on the ground.

Although it is said that farming must be bent over, if you can't straighten up all the time, it will still make people feel very uncomfortable, after all, even when the farmer uncle is plowing the land, he will occasionally straighten up and take a break, and will not bend over all the time.

But fortunately, the greenhouse is not large, and the land to be planted is nothing more than 200 square meters, so it will not be too tiring.

It's just that after realizing this problem, Chen Xin still thought of the small agricultural machinery he had planned to get before.

This time, the materials exchanged with Uncle Ding did not include small agricultural machinery, not that Chen Xin did not mention it, but that Uncle Ding did not send the small agricultural machinery he wanted, but said that he would wait for Chen Xin to pay the balance of this transaction next time before sending what he wanted.

Obviously, Uncle Ding is still wary of Chen Xin.

This has nothing to do with trust or not, even before the disaster, ask the bank for a loan or a friend to borrow money, what collateral is needed, Chen Xin's installment payment transaction method makes the other party a little uneasy, so it is normal to keep a hand.

Chen Xin has no dissatisfaction or opinion on this, but in this way, his work this month will inevitably be harder.

Fortunately, when the system was upgraded, the soil on the ground was also upgraded, but he didn't need to fertilize and plough the ground, just sow the seeds of upland rice.

——————————————————

After finishing the work of the planting greenhouse, it was already evening.

Although it is said that without the change of light, the night can no longer be called night, but the schedule is still the same.

After dinner, Chen Xin collapsed on the sofa in the living room, playing the game console a little bored.

After a long day of work, Chen Xin felt that his muscles were sore, although he had done a lot of farm work in the past month, but today he still felt extremely tired, so he wanted to play two games to relax.

Speaking of which, it is normal to feel more tired today, after all, I moved all kinds of materials in the morning, and in the afternoon, I was sown with water and upland rice, and the workload has indeed increased a lot compared to the previous month.

Fortunately, there is no need to plow the land today, otherwise Chen Xin felt that he was afraid that he would be tired and break his waist.

While rubbing the handle, Chen Xin picked up the cup on the side and took a sip, the bland boiled water in his mouth made him can't help but smack his lips, at this time, it would be nice to have a bottle of fat house happy water.

Unfortunately, there is no such thing as Fat House Happy Water in the shelter to relieve fatigue, and there are only pure water that is bland and tasteless.

Before the disaster struck, Chen Xin mainly collected survival materials, although it was not impossible to collect materials like Fat House Happy Water, but at that time, Chen Xin didn't think about these at all, so that when he couldn't drink it now, he remembered that he was not prepared at all.

As for the fact that the disaster has struck, it may be possible to get the fat house happy water through the exchange of materials, but I don't know if there is still stock on the large evacuation site.

After all, this thing is a consumable, and now after the disaster strikes, I am afraid that even if the country organizes the resumption of production, it will not waste resources to produce these non-essential materials for survival, but will use all resources for the production of survival materials.

Thinking of this, Chen Xin couldn't help but sigh, not only the fat house happy water, but also the very things he was familiar with would probably disappear with this disaster and become a record in the history books.

I don't know if human beings will be able to produce these things again after resuming production and rebuilding their homes, and how many things from the past can be restored again?

Chen Xin didn't know the answer, but he sincerely hoped that if possible, he would be able to return to his old life, even if only partially.