Chapter 133: Save Water! Save Water! (3/3)
Water, for life, means everything. Look.Mao.Line.Chinese.Text.Net
Especially in the arid forbidden area of life in the northwest, there is water and soil, and there are people and people.
Agriculture is the most water-intensive activity.
The annual precipitation in Longgu County is low, mainly irrigated by alpine snow water, and the importance of water resources to the agricultural development of Longgu County can be imagined.
The news that Jiagu will invest in a comprehensive water-saving irrigation project for the cooperative has touched the hearts of farmers in Longgu County.
In the planning, the entire water-saving irrigation project mainly includes two systems: rainwater harvesting and utilization system and sprinkler irrigation system.
In fact, saving water is nothing more than opening up sources and reducing expenditure.
Open source is reflected in rainwater harvesting. As the name suggests, rainwater harvesting and utilization is a micro-water conservancy project that takes engineering measures to collect, store, regulate and utilize precipitation.
It can be said that rainwater harvesting and utilization is a higher stage for people to use rainfall.
In China, rainwater harvesting and utilization is not just an ordinary micro-water conservancy project, but has become one of the main means for people in arid and water-scarce areas to improve agricultural production conditions, protect the ecological environment, and develop the economy to get rid of poverty and become rich.
So far, the state has invested more than 4 billion yuan in the northwestern provinces, built nearly 4 million water cellars and pools of various types, with a water storage capacity of more than 900 million cubic meters, and solved the problem of drinking water for about 18 million people and food and clothing for 13.5 million people.
Don't look at the lack of rainfall in the northwest, because of this, rain will be more important.
Of course, Longgu County also has corresponding rainwater harvesting and storage facilities. What Jiagu needs to do is to further improve the original rainwater collection and storage project, expand the collection area, and increase the rainwater collection and storage capacity.
And throttling is mainly reflected in sprinkler irrigation.
Sprinkler irrigation is the use of pipes to disperse the pressurized sprinkler into fine water droplets, and evenly spray them into the field to irrigate crops.
The advantages of sprinkler irrigation are outstanding. First of all, compared with surface irrigation, sprinkler irrigation of field crops can generally save 30~50 water and increase yield by 10~30......
And the biggest disadvantage is that it costs money.
Take the semi-mobile telescopic sprinkler irrigation system to be built in Jiagu, with a unit cost of 300 yuan per mu, and an investment of nearly 100 million yuan is required to cover the 300,000 mu barley planting area planned in advance.
Although Qi Zheng can allocate rainfall through the Spirit Array, it must not violate the climatic characteristics of the Northwest, and in the hinterland of the Northwest Continent, where can he allocate water resources? At least Qi Zheng has the current ability, and the scope of the array is really limited.
Therefore, making advanced technology an important means for the common development of people and nature in Northwest China can be regarded as giving them fishing.
In fact, Jiaguken has invested heavily in the construction of rainwater harvesting and utilization systems and sprinkler irrigation systems, and everyone is very willing to join the cooperative.
The reason is simple: although growing barley requires less water, it is always a matter of eating from the weather, and the dry climate will greatly reduce the yield.
And with water-saving irrigation projects, the ability to withstand the risk of drought is self-evident.
Even if Jiagu goes out of business, at least the water-saving irrigation project is still there, and the cooperative will not lose money after all, right?
......
Compared with the simple and somewhat cunning ideas of the farmers, Jiagu is more concerned with the technology itself.
In the Great Northwest, life is not to ask for anything from the desert, but to build your own home in the desert.
And advanced agricultural water-saving technology is the best means to build a home in the desert.
It's not that I didn't want to use it before, but I couldn't afford it.
The miracle of Israel's "agricultural power" as a "desert country" is known to the world is based on advanced agricultural water-saving technology.
And how many people know that behind it is not only the support of strong international capital, but also the tireless research of scientists as a reliance.
In terms of capital, Jiagu can barely say that it has a certain strength, but in terms of real technology, it is still far behind.
Take the most basic water-saving irrigation, for example.
To achieve a true water-saving irrigation effect, two things are needed: the most effective water-saving measures and the minimum water consumption.
The sprinkler irrigation used by Jiagu can be regarded as an effective water-saving measure.
But how much water should be poured into it?
In order to achieve the real water-saving effect, the development of irrigation equipment alone is not enough, but also need to study the law of water demand of crops, how much is needed, when there is a shortage of water, then irrigation, no more irrigation and no less irrigation, so as to achieve the minimum water consumption.
That's the key to water-efficient irrigation.
And this has been overlooked by the public.
Therefore, what Jiagu needs most now is to organize people to study the law of water demand of crops, and determine the irrigation decision of crops according to the law of water demand of crops, that is, how much, how deep, and when to irrigate?
This point, even the anti-heaven spirit array cannot be solved.
It's time to pay attention to real science, Qi Zheng sometimes makes fun of himself helplessly.
But even if you do that, you're just getting started.
The so-called integration of water and fertilizer, irrigation and fertilization are often inseparable.
Israel showed the world what it means to be a master of what it means to be a master of this.
With the help of the pressure irrigation system, the fertilizer liquid made of soluble solid fertilizer or liquid fertilizer is mixed with irrigation water to evenly and accurately transport it to the roots of crops, and the water and fertilizer utilization rate is as high as a horse.
The liquid fertilizer developed by them for the integrated technology of water and fertilizer has more than 400 formulations of products, which can meet the needs of various crops at different growth stages.
There are many more advanced water-saving technologies......
A small country, two-thirds of the country's land is covered by deserts, extremely arid, per capita water resources are less than 3 percent of the world's per capita level, and the per capita arable land level is less than 20 ...... of the world's per capita level It's so hard to move an inch.
But in this land, where arable land and fresh water resources are severely scarce, the Israelis have created one "myth" after another of desert agriculture, using less than 3 percent of the agricultural population to feed 8 million people while making their agricultural products occupy 40 percent of the European vegetable and fruit markets.
It's even more mysterious than Qi Zheng's spirit array, is there wood?
But that's the real power of great water-saving technology.
In this area, Jiagu can only be said to be a primary school student, and he can only make up lessons slowly.
In the final analysis, China is also a water-poor country, and the development of agricultural water-saving technology is still of great practical significance.
However, although Qi Zheng is also very supportive of Jiagu's investment in research on agricultural water-saving technology, he is still very confident that Jiagu will surpass Israel in the future - even if it is a company against a country.
From a large perspective, agricultural water-saving technology is mainly regarded as "throttling", and its own spirit array can be "open source".
No matter how much you throttle, theoretically, the more water resources are used, the less you use.
But Qi Zheng, a commodity that can be opened, can be "open sourced" to make more and more water resources, who is more promising, needless to say?
As long as the level of the spirit array goes up, the scope of "open source" expands, and then look at this vast northwest, the more I think about it, the more excited I become......