Chapter 495

The ecological greenhouse of the research center is not the same as the traditional greenhouse, but also different from the ecological greenhouse before the disaster.

The traditional greenhouse is mainly used to raise the temperature and artificially change the growing environment of crops.

Although the ecological greenhouses before the disaster are different, they are actually used for this purpose, but relatively speaking, their functions will be more comprehensive.

Chen Xin remembers that according to the information he found, there are even ecological greenhouses with solar panels, which provide energy for the greenhouses through solar power generation, and make full use of natural resources to improve the yield of crops in the greenhouses.

But now it's all out of the question.

Including the new greenhouses built by the state, the most essential difference between these greenhouses built after the disaster and those built in the past is still on the walls.

Most of the traditional greenhouses are made of transparent film, which is low cost and easy to maintain. Straw mulch or thermal insulation quilt is used to keep the temperature. In the past, it is enough to keep the temperature.

However, if you want to maintain the temperature in the environment of tens of degrees below zero, this is not what the traditional greenhouses can do. Even in the past, the ecological greenhouses mostly used organic glass, transparent plastic and other materials in building materials, and the thermal insulation performance did not exceed too much.

The four walls of the greenhouse in the scientific research center are all made of high-performance thermal insulation materials as interlayer, the outer layer is made of low temperature resistant metal materials, and the inner layer is made of composite materials. The three-layer structure can not only resist the invasion of external cold, but also prevent the loss of internal temperature and water vapor.

Because there is no sunlight outside, so now the ecological greenhouse does not consider the problem of light transmittance, but in order to save as much as possible to reduce the escape.

In addition to the structural differences, the greater difference lies in the interior.

It not only uses a variety of technologies such as soilless cultivation, three-dimensional planting, ecological agriculture and breeding to upgrade the original plane planting area into a three-dimensional planting system, but also forms a cycle between various crops to form an organic whole.

With the continuous supplement of the three necessary conditions of light, warm water, the ecological greenhouse of the scientific research center can not be said to be able to cultivate indefinitely, but there will be no problem in at least ten or twenty years.

The goal of the research team led by Professor Li is that there will be no circulation problem within 50 years, and that the ecological greenhouse can still operate normally without changing crops except for mechanical maintenance.

As for the maintenance of ecological greenhouses, it has been fully mechanized with the help of Chen Xin.

Mechanical harvesting, mechanical sowing, mechanical irrigation, mechanical feeding... Under Chen Xin's will, all the parts requiring human labor in the whole ecological agriculture system have been replaced by mechanized operation, and everything has become automation.

As a matter of fact, the ecological greenhouse in the scientific research center is also fully automatic. Just set up the planting mode and ecological system, provide the original crop seeds and animal seedlings, and ensure the supply of light, temperature and water, so that the whole ecological greenhouse can operate on its own.

Professor Li's pursuit of 50 years without problems means that the whole ecological greenhouse can operate for 50 years without problems except for mechanical failures.

In order to achieve this goal, Professor Li and his team have carefully selected all the crop seeds.

They did not choose the seeds that were artificially bred in the past with high yield but could not inherit the traits for a long time, but the seeds that had stable traits and could be sown all the time without obvious yield reduction.

Moreover, the ecological dependence between crops has been studied in detail, which can build the fully automated ecological greenhouse of the current scientific research center.

With the help of Chen Xin's equipment for breeding genetically modified wolf dogs, the animal seedlings used in the ecological greenhouse have optimized the traditional livestock seedlings and bred excellent breeds.

It's just that animals and plants are very different. They need special people to take care of them.

Although the automatic machinery of the ecological greenhouse can provide them with the necessary water and food for survival, if there are diseases and other conditions, they still have to be handled by human beings.

It has to be said that it has the flavor of automated agriculture in science fiction.

And the ecological greenhouse, which has devoted a lot of efforts of Professor Li and Chen Xin, has not let them down. It can not only maintain itself all the time, but also continuously produce melons, fruits and vegetables every month, as well as a large number of agricultural and sideline products such as food crops, eggs, milk and meat.

According to Chen Xin and Professor Li's calculation, such a greenhouse can support at least 3-5 people per mu.

Don't think that this figure is very low. If we follow the traditional agricultural model, if we only grow rice in one mu of land, we can barely meet the needs of two or three people for rice if we plant 1000 catties of rice in two seasons a year and produce 500 or 600 catties of rice in one season and 1000 catties of rice in one year.But it is impossible for people to eat rice without vegetables or other meat.

Therefore, theoretically speaking, if you want to support a person and meet his dietary needs, it is not enough to rely on one mu of land with traditional planting methods.

And now this kind of ecological greenhouse can provide completely different.

First of all, the ecological greenhouse which can carry out three-dimensional planting and ecological agriculture can completely turn the original one mu land into several mu land, and greatly increase the yield of crops.

Moreover, the ecological system built in the ecological greenhouse can produce a wide range of vegetables and fruits, eggs, milk, meat and other agricultural and sideline products obtained by raising poultry and livestock.

And the rich food types, especially the existence of meat, can greatly reduce people's demand for a single grain.

So just from how many people can be supported by one mu of land, of course, the ecological greenhouse is the winner.

But correspondingly, the maintenance cost of ecological greenhouse has also been increased a lot.

In traditional farming, one person can finish all the work in one mu.

However, without the full-automatic machinery provided by Chen Xin and relying entirely on human resources, three or five people may not be able to maintain the operation of the ecological greenhouse with an area of one mu, and these people must have enough knowledge to enable them to deal with various problems.

However, although the cost of investment is high, the ecological greenhouse is also a huge good news for the current situation in Yanguo.

Because for Yanguo, the manpower needed to maintain the operation of an ecological greenhouse is secondary, and the main thing is to obtain more food output.

After all, in the end of the world, manpower is not worth money, but food is very valuable.

It is precisely because the first mock exam will give the eco high priority to the ecological greenhouse. It is intended to build a new ecological greenhouse in order to produce more food.

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