The seeds and seedlings of these vegetables are specially wholesaled by Song Ziyu from the civilized world, including but not limited to

Vegetables, taro, etc.

Rinse the soil from the vegetables and cut off any excess rotten roots.

Finally, use the disinfectant solution prepared by Professor Chen himself to disinfect its root system.

After processing, fix the vegetables in the hydroponics box and use the water level to contact the root system without affecting the vegetables themselves.

At this point, hydroponic vegetables are grown.

This kind of planting method is very demanding on maintenance, so Professor Chen recruited these ingenious people to operate it.

Professor Chen's step-by-step education was amazingly patient.

The gentleness with which these vegetables are treated infects everyone who learns the technique.

Agriculture requires emotional investment.

"The difficulty of hydroponic cultivation is that you need to change the water regularly. Generally, it is best to change it every five days or so!"

"You must not change the water for a long time, otherwise the vegetables will rot when the water quality deteriorates."

"In this regard, hard work and carefulness are very important."

"In addition, hydroponic vegetable cultivation requires good maintenance and management."

"You need to add nutrient solutions to the water regularly so that vegetables can grow vigorously."

"I will teach you how to prepare this nutrient solution. I will also tell you the formula and proportion of raw materials... In the future, when we have the conditions, I will teach you how to make the original solution."

"The environment for maintaining hydroponic vegetables requires warmth and ventilation, and the vegetables must be exposed to appropriate light. Otherwise, if the environment is not suitable, it will also have a negative impact on the growth of hydroponic vegetables."

"From this point of view, the shelter's energy and wind collection are very superior..."

Professor Chen taught diligently, and the wasteland residents listened carefully.

Among the deserters there are many elderly people and half-grown children.

Everyone is uneducated, and many people don't even know the words.

But everyone maintains enough respect in the face of knowledge.

Song Ziyu watched from the side and couldn't help but burst into tears.

In any classroom in the civilized world, it is difficult to see the scene in front of you.

In the lecture halls of universities, I can see people who are dedicated to studying, but I cannot sense this kind of devotion to knowledge.

The deserted people in front of them are more like believers worshiping the Buddha.

They treat knowledge with reverence as if they were gods.

This can't help but make Song Ziyu feel puzzled.

Why would such an outstanding nation and such a wise human being embark on the road to doom?

What did those ancestors do wrong?
Chapter completed!