The great beauty writer Xia Ziyun suddenly posted a social update!

It has sparked a lot of fan comments at once.

"Happy birthday!"

"Yunniang, is it your ordinary friend or boyfriend who gave the gift?"

"It must be a female best friend, right? Yunniang, that's right? Yunniang belongs to all of us, so she has no male friends!"

"Yunniang, as a loyal male reader who has followed you for seven or eight years, you won't abandon me, right?"

"What a delicate birthday gift, it may not be very valuable, but it is much more thoughtful than those bought jewelry."

"Not worth it? Do you don't understand the market of figures? Do you have a few thousand figures for ordinary plastic materials. The material used here is crystal. The difficulty of engraving and processing is much more difficult than that of ordinary materials. The scrap rate is very high. Such a set of figures, the price of 100,000 is not high."

"Damn it, is that rich second generation pursuing Yunniang? Please don't do this and don't take away our fantasy."

"Woooo, Yun Niang is about to be taken away, but to be honest, the little box, Yun Niang, and the keyboard. If you paint that box black and put Yun Niang and the keyboard in it, wouldn't it mean to shut up the small black room? As long as you lock Yun Niang inside, she can only turn into a tentacle monster, and update it every day to support Guan Xiao Niang's raising her hand."

"Hahaha, Xiao Black Room, what I said is really like that. Yun Niang's update has not been very impressive recently. I agree with the closing of Xiao Black Room!"

"Yunniang, don't think about showing off your boyfriend to feed us dog food, just stay in the small dark room and update it."

“…”

When I saw netizens' comments, most of them were blessed with a happy birthday. The word "boyfriend" made her face turn slightly red, and the metaphor of "little black room" made her mouth twitch, and she was speechless.

...

The world of your own.

The problem of supplying "carbon fertilizer" in healthy vegetable houses must be solved.

Burning charcoal is not a long-term solution.

Not only does it have to struggle several times a day to affect his normal routine, but it also involves a lot of his energy.

In addition, according to the daily charcoal consumption rate, the remaining 300 kilograms of charcoal will last for at most one month (Blue Star time).

Is there a better way to solve this problem?

Xu Ming contacted a chemical supply company a few days ago, and the other party proposed a very feasible solution.

dry ice!

This is a kind of carbon dioxide that exists in a solid form at minus 78.5 degrees.

The boiling point is -57c.

Dry ice is very widely used, such as fire extinguishers, artificial rainfall, stage performance smoke, dry ice cleaning, carbonated beverage production, etc., which can be said to be closely related to the lives of ordinary people.

The technician of the chemical company suggested that Xu Ming could customize a set of carbon dioxide supply devices, which were controlled by a single chip computer. The raw materials used were compressed canned dry ice, and a 15-kilogram steel tank could be filled with 50 kilograms of dry ice.

How much carbon dioxide can be absorbed every day in today's healthy vegetable house?

Xu Ming has measured that under the premise of unlimited supply of "carbon fertilizer", vegetables in the rapid growth period can absorb 18.8 kilograms of carbon dioxide every day.

If it maintains its normal growth, it is barely enough to supplement about 10 kilograms of carbon dioxide every day.

A can of 50 kilograms of dry ice can be managed for about five days.

On the one hand, Lan Xing has been with him for three days. To be honest, as long as he can manage more than three days, Xu Ming's pain points will be solved and his work and rest will be restored to normal.

In addition, since it is a large-scale industrial product, the price of dry ice is not expensive, 50 kilograms is only 80 yuan, and it provides door-to-door delivery service. The more you buy, there are discounts. The price-performance ratio is slightly lower than that of charcoal, but it saves trouble.

Also, although the technical difficulty is very low, the technical team he contacted for the automatic carbon dioxide supply device for Xu Ming was asked for 50,000 yuan, and it was a bargain, without a bargaining price!

Xu Ming was shocked. This was a big mouth. It was just a microcontroller and automatic control valve. Anyone who knows a little technology can do it. How expensive is it?

"It took me less than 20,000 yuan to spend in my entire vegetable greenhouse. If you set of automatic carbon dioxide supply equipment, you dare to ask for 50,000 yuan, which is equivalent to two and a half greenhouses?"

Change one!

It's definitely cheaper to find.

So Xu Ming spent two days and contacted four or five technical teams. He could do it, but none of them had less than 30,000 yuan, which was still too expensive.

At this time, the technical team at the beginning took the initiative to contact Xu Ming and said that they had done 30,000 yuan. Moreover, the biggest technical difficulty of the system that Xu Ming wanted was to ensure that the steel tanks evenly output equal amounts of carbon dioxide every day under different pressures. This involved a relatively complex approach. Other teams could also implement functions, but the error was definitely greater than theirs... Their team had very mature experience in this regard.

The previous offer was 50,000, which was due to absolute confidence in technology.

The reason why I look back at Xu Ming and promised to make a deal of 30,000 is that the economy has become increasingly sluggish in the past two years. It is only one order to take orders, and no matter how small the mosquitoes are, they are still meat.

"I see."

Xu Ming nodded: "Okay, 30,000 is only 30,000, so let's leave it to you."

During the next contact, Xu Ming found that some of the five members of the technical team were university professors, some graduated from prestigious universities, and some won the first prize in the robot competition... Now, after working for 30,000 yuan, each person was given 6,000 yuan.

Fortunately, so many big bulls worked together, and it took only one day to customize the automatic carbon dioxide supply system, and it can automatically adjust the supply of carbon dioxide. It even supplies carbon dioxide in a curve according to the rules of plant growth, so that less supply in the morning and evening and more supply at noon.

It also provides three years of free technical support services.

Xu Ming was only a lot satisfied and paid the final payment with ease, feeling that the 30,000 yuan was not a loss.

In addition, I called the chemical supply company and ordered 10 cans of 50 kilograms of dry ice, and sent it to the warehouse designated by Xu Ming.

...

January 14th.

After less than half a day, the automatic carbon dioxide supply device of the Healthy Vegetable House was installed and after entering several parameters into the computer, the system was officially put into work.

Xu Ming burned charcoal to replenish carbon fertilizer, which has completely become history.

"There are three big bags of charcoal left, and it's great to hold an outdoor barbecue occasionally...it will be useful in the future."

"Oh~"

He shook his head again: "I originally wanted to save some money in the world where I grow vegetables, but the greenhouse was 20,000 yuan, the carbon fertilizer automatic replenishment system was 30,000 yuan, and I also bought a bunch of steel tanks and dry ice. It was exhausted to move more than 100 kilograms of things. The deposit of the bank card was reduced to 350,000 yuan."

"In the greenhouse, each Blue Star Sky needs to consume more than 30 kilograms of dry ice. The maintenance cost of dry ice is only supplemented, which costs 50 yuan a day, not including management labor and other costs."

"Growing vegetables will save money, but you will lose more than 1,500 yuan every month."

"It seems that the vegetables in this greenhouse can no longer be given to others for free. They are all organic vegetables! You may not be able to buy them if you have money. If you can't finish them, then you can find a way to sell them. You can't lose money, right?"

The other side of Xu Ming's character has emerged. Although he doesn't like to owe others, he doesn't like to lose money.
Chapter completed!