[Congratulations to the host for completing the novice task: saving the plants in the garden. It took 27 days, and the plant survival rate was 88% (greater than 80%), and it was judged to be qualified.

Please check the rewards in the task panel.]

At the end of June, with three days left before the deadline, Ye Han finally heard the news that the task was completed.

The bell suddenly rang in his ears like the end of a long exam. Ye Han's long-term tense nerves completely relaxed at this moment, raising his hand to cover the increasingly dazzling sunlight above his head, and suddenly felt a little dizzy.

She immediately held the tree trunk and found a place to sit down in a cool place, breathed rapidly, and tried to calm down her rapid heartbeat.

Even if he is calm, Ye Han is just a college student who has just left campus.

The Nanshan Botanical Garden has been abandoned for a long time, with all kinds of things that need to be planned, a bunch of complex transactions that need to be handled, and a lot of technical things that need to be learned... Anyone will feel stressed.

What's more, there is still a 30-day mission deadline as a requirement.

It seems like the sword of Damocles hanging above his head at all times, and it will fall at no time.

Fortunately, after so many days of hard work, Ye Han finally completed the task before the countdown ends.

When the rapid breathing gradually returned to a slower level, the vigorously beating heart gradually returned to its position, the girl stood up and quietly looked at the surrounding scenery.

Looking around, the desolate botanical gardens in the past have completely changed. The roads are clean and tidy, the water on the lake is rippling, and the rescued trees are also pruned to look decent, showing a kind of vitality that they have never seen before.

Even though there are pressure and difficulties in completing the task, the sense of accomplishment brought about by achieving the goal is also unspeakable.

It was a great spiritual satisfaction, as if the blood in the whole body was boiling - Ye Han had never felt the meaning and value of his existence like he is now.

Compared to the relatives in reality, the plants here need her more.

This feeling of being demanded is particularly fascinating.

The sun shines on Ye Han's body through the shade, like leaping gold foil; the apricot eyes reflect the green silhouette of the plant, as clear as water washing, and the smile on her lips is not haze, just like her heart at this moment, bright and excited.

After a while, a translucent interface appeared in front of you:

【After detecting that the novice task has been completed, a novice gift package will be distributed: Plant Nutrition Solution*1, Water Purifier*1.】

Ye Han clicked on two glittering icons to collect, and he couldn't help but feel more anticipated.

After receiving it, a translucent bottle and a small ball soon appeared on the stone platform next to it.

The bottle is about the size of a mineral water bottle, and it contains light green liquid, which is semi-solid. It looks like flowing amber under the sunlight, which is very beautiful.

Ye Han guessed that this should be plant nutrient solution.

The other ball is only the size of a one-yuan coin, pure white, and nothing special is seen from the outside.

‘...This is the water purifier?’ Ye Han thought and picked it up from the stone platform.

The weight is a bit heavy, the surface is very smooth, and it falls into her palm. It is small, and it may roll off if you are not careful.

Ye Han thought of the huge aeration purification device installed by the water treatment company in the middle of the lake, and looked at the small one in his hand, and couldn't help but wonder: Can such a small size really purify tens of thousands of tons of water?

No matter how you look at it, it doesn't matter how you look at it.

With this question, Ye Han took it to the water corridor and walked all the way to the center of the lake.

The wooden fence was repaired by someone some time ago. The paint has dried up and there is only a faint smell left. It is blown by the hot summer wind and slowly drifts into the air and can rarely be smelled.

Looking down along the railing, although the lake water has not yet reached the standard water quality, it is no longer turbid to the naked eye. Only a small amount of particles and suspended objects float in the water. I believe that it will gradually be eliminated in the circulation of the water in a few months.

Ye Han tightly held the coin-sized ball in his hand, feeling sweaty and slippery.

Worrying to throw it away, she put her right hand clenched into a fist on top of the railing, then took a deep breath - let go.

The next second, the white sphere fell into the water in a free fall motion. With a slight sound of "thump", a small splash of water splashed, and layers of ripples spread along the center. After sinking for a distance, the white sphere actually... disappeared.

?

Ye Han held the railing tightly with his hands and looked down. His eyes glanced back and forth on the water surface where the waves appeared several times, but he could not see its trace.

Has it sunk to the bottom of the water or turned into some chemical substance and degraded into the lake?

Or... using the water flow and its own speed to go to other places in the lake?

But none of these can be purified for a long time—

Ye Han clearly remembers that the use time of the water purifier is permanent.

Just as she was making various guesses, her eyes suddenly shook.

At that moment, she seemed to see a huge transparent net laid in the water, and more than one layer, stretching densely across the lake, without a glance.

After looking closely, the big net that "covered the sky and the sun" disappeared again, as if the scene just now was just an illusion.

Ye Han's heartbeat accelerated and he stared at the lake without blinking. Until his eyes were a little sour, he saw the "giant net" that looked like an illusion again under the refraction of the light.

It is intertwined by many layers of mesh-shaped "wire threads", with high density and transparent color, almost integrated with the lake water, like an ancient giant beast dormant at the bottom of the water, occupying the entire lake surface with countless dancing tentacles, making people unable to help but take a breath.

And it seems to have no shape, because the pores and density between the grids are constantly changing with the flow rate of water, sometimes expanding and sometimes shrinking, perfectly integrating itself into the water without affecting the survival of any organisms.

At the same time, it also has extremely strong filtration and decomposition capabilities.

Ye Han saw with his own eyes some suspended objects floating in the water approaching quickly like a "moth to the fire", but disappeared the moment they came into contact with it. It should have been decomposed into smaller molecules or other microscopic particles in a very short time, which cannot be observed by the naked eye.

The whole process was very magical and shocking.

From a small ball to a "giant net" covering the lake, to an incredible purification ability, all this is beyond the imagination of ordinary people.

Just as Ye Han was immersed in the "miracle" displayed by future technology, the looming "giant net" slowly disappeared into the lake, like a phantom, and could no longer find a trace.

Ye Han came to his senses after realizing it, raised his hand to block the dazzling sunlight, and closed his eyes with some discomfort.

The slender eyelashes are intertwined and closed. When they are opened again, small black dots appear on the retina, which may be the sequelae of staring at the sparkling lake for too long.

After standing here for a long time, Ye Han felt that he had been burnt into a shriveled dried fish by the scorching sun, as if even his hair was burnt.

She quickly walked towards the pavilion, and sat on the stone bench away from the light, and finally felt a hint of coolness in the hot summer.

The system sounded: "Host, the water quality purifier has started to operate, and the host can view the water quality status in the initial interface of the product. Currently, it is an intelligent self-purification mode. If you want to set it yourself, please enter the parameters manually."

Ye Han clicked the screen and saw a three-dimensional three-dimensional model of the artificial lake in the product details.

It is as detailed as a reduced version of an artificial lake. Whether it is the water corridor, the distribution, number, growth status, or data of the plants in the lake, they are all clear at a glance; and the disappearing "giant net" is also clearly displayed in the picture, floating with the water flow.

The light spots represent that it is constantly purifying the entire water area, and as it operates, the corresponding parameters are constantly changing.

Body of water name: Nanshan Botanical Garden Artificial Lake

Area: 83.28 acres

PH value: 7.46(...)

Suspended object (ss): 18.20(...)

Dissolved Oxygen (do): 4.31(...)

Temperature (c): 25.22(...)

Turbidity (ntu): 6.05(...)

...

Overall rating: 73.9 (out of 100)

The water quality will be improved within 24 hours and will remain above 95 minutes in the long run.

This monitoring data is real-time, with extremely high accuracy, and can be accurate to dozens of digits after the decimal point. The filtering, decomposition, monitoring and calculation of all this is only realized by a small sphere. The future technology is really amazing.

Ye Han turned around and looked at the artificial lake. The calm water surface covered everything. If it weren't for the data on the light screen still beating, it would be like a bizarre dream.

The effect of the water purifier allowed her to see a magnificent corner of Galaxy Technology. At this time, Ye Han looked at the colorful nutrient solution on the stone table and felt great expectations for it.

She clearly remembers the role of plant nutrient solution: stimulates cell activity, promotes rapid growth of plants, and makes them vibrant.

This is a blessing for plants that have just been rescued. They can maximize their survival ability and have room for time, and may bloom beautiful flowers in summer.

Instructions for use:

Please dilute this product and water at a ratio of no less than 1:10 million. After the first use, the concentration can be appropriately reduced according to plant needs to avoid waste.

She read this sentence silently twice and confirmed that it was a ratio of 1:10 million.

In other words, 1ml of nutrient solution must be filled with at least 100 tons of water to achieve this dilution ratio. Conservatively, it can water thousands of trees.

There are not so many plants in the entire Nanshan Botanical Garden.

And Ye Han roughly calculated that the nutrients contained in 1ml of liquid are simply astronomical (equivalent to 2-3 tons of compound fertilizer), and they also need to meet the nutrients required by plants of different types, different growth cycles, and different habits...

This is simply incredible.

Just like when plants grow leaves, they use nitrogen fertilizer, phosphate fertilizer for flowering, and potassium fertilizer for rooting... Different fertilizers are used at different stages, and the preferences of each plant are also different. Too much fertilizer can also cause seedling burning.

There is only one bottle of nutrient solution. How can it meet the needs of different plants?

Ye Han stared at the light green liquid in his hand for a while and felt relieved, and stood up with it.

If you think so much, it will be useful.
Chapter completed!