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<> soilless cultivation is done by perlite.
and other media instead of soil and nutrient solution.
For the first nutrients of crops or the technology of using hydroponic technology to grow the technology. At present, soilless cultivation technology is developing rapidly in foreign countries, and the development is relatively slow in China due to cost, technology and other reasons. So what are the benefits of soilless culture?
1. Save land. Soilless cultivation is mainly achieved in greenhouses through a variety of cultivation pipes. It can be planted in multiple layers with the same or different crops at the same time.
That is to say, the planting space is three-dimensional, which has incomparable advantages in saving land and improving the utilization rate of cultivated land compared with the traditional plane soil culture.
2. High security. Due to the small probability of occurrence of diseases, insects and weeds in soilless culture, pesticides and herbicides.
The use is also very rare. In addition, soilless cultivation provides nutrients and water in the form of nutrient solution, eliminating the residue of harmful substances such as fertilizers, heavy metals and antibiotics in the soil. Therefore, the safety of agricultural products grown without soil cultivation is relatively high.
3. The growth period is short. In the intelligent greenhouse, the temperature and humidity can be adjusted independently, which is conducive to the development and growth of crops. And in greenhouses, lighting facilities such as fill lights can be used to extend the photosynthesis of crops.
time, by increasing the light time, promote the growth and development of crops, and increase the accumulation of organic matter. From the hair to the purpose of shortening the growth period.
4. High fertilizer utilization rate. Soilless cultivation is generally combined with the integration technology of water and fertilizer, and the water-soluble fertilizer is transported to the root system of crops by pipeline, and the nutrient demand of crops is supplied through drip irrigation and other technologies, which avoids the problem of fertilizer waste caused by water loss and infiltration in soil culture, and greatly improves the utilization rate of fertilizer.
5. Soilless cultivation saves water and fertilizer, which is labor and labor-saving. In the whole soilless culture industry, the nutrients needed for crop growth are supplied with nutrient solution or liquid fertilizer, because such fertilizer is the highest coefficient rate for crops, which should be understood by friends with planting experience, the absorption rate of liquid fertilizer is very different from that of traditional fertilizer, and the fertilizer saving rate can reach more than 40%, especially the loss of soil cultivation and fertilization is very large. In the process of soilless cultivation, water or fertilizer are recycled, and different proportions are installed according to different crops, so that the absorption of crops is more powerful.
After soilless cultivation and planting, you only need to install the nutrient solution at the computer control end, and the first time is basically your own operation, and the basic data of the nutrient solution can be tested regularly.
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Save land, save water, save fertilizer, and don't have any pollution, save time and effort.
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It can increase the production of plants, it can also make plants grow better, and it can also prevent plants from developing pests and diseases, and it can also prevent plants from wilting, and if things are good, they can also make plants healthier.
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It can prevent the growth of bacteria, can increase yields, can prevent pest problems, can also help to maintain good growth, can make crops grow faster.
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1. First of all, water-saving, soilless cultivation can avoid a large amount of waste of water resources caused by leakage and evaporation of soil cultivation, and only a small amount of water can be used.
2. The second is fertilizer saving, usually only a small part of the fertilizer applied to the soil is used by plants, while soilless cultivation is to plant plants under closed cycle conditions or containers, and there is no problem of nutrient loss.
3. Because soilless cultivation does not use soil and organic fertilizer, all of which rely on the nutrient solution prepared by inorganic fertilizer to provide nutrition, soilless cultivation is clean and hygienic, and avoids the infection caused by viruses or pests and diseases in the soil, and there are no weeds, thus saving a lot of manpower and material resources.
4. Soilless cultivation is basically not limited by land conditions, and can be carried out in places with poor ecological conditions or lack of land, which opens up a new way for agricultural production to solve the contradiction of more people and less land.
5. Because soilless cultivation is carried out under artificial control conditions, all the nutrients and environmental conditions required for growth can be satisfied, so the growth and development are good, so the flower yield produced by soilless culture is high.
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The types of soilless culture include: hydroponics, deep liquid flow cultivation technology, nutrient solution film technology, floating plate capillary cultivation technology, aeroponics;
Advantages of soilless culture: water-saving, fertilizer-saving, high-yield: various nutrients required by crops in soilless cultivation are artificially formulated into nutrient solution and applied, with less water loss, balanced nutrients and high absorption efficiency.
Soil cultivation and application of organic fertilizer, fertilizer decomposition and fermentation, produce odor pollution environment, will also make many pests eggs breed, harm crops, and soilless culture is applied inorganic fertilizer, there are no these problems, and can avoid the pollution of heavy metals and other harmful substances in the polluted soil.
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Friends who know know that the cost of soilless cultivation is much higher than that of soil cultivation, and it needs to be specified in soil nutrition, humidity, temperature, and technology is also higher than the requirements of soil cultivation, after all, there is more manual intervention, so soilless plants are generally high value-added plants. But why is soilless cultivation technology valued by the state and welcomed by the masses?
First. The substrate is taken from cheap crop stalks, corn cobs, waste mushroom residues and other agricultural wastes, which fully replace the most expensive grass peats as soilless cultivation substrates, and can be used continuously for 3 4 years.
Second. Soilless cultivation breaks through the traditional notion that chemical nutrient solutions must be used. It uses organic solid fertilizer instead of chemical nutrient solution, and only needs to irrigate water during the whole growth process of the crop, reducing the consumption of labor and materials.
Third. According to the long-term depreciation to calculate the cost of soilless culture, in general, the cost is not high, mainly because of the high yield of soilless culture, taking the Netherlands as an example, the annual output of soilless tomato is about 52kg per square meter, and the annual output of soilless soil cultivation is only 22kg; The annual output of cucumbers per square meter is about 70kg in soilless culture, and only 25kg in soil cultivation. At the same time, the rate of A-grade soil cultivation is more than 94%, and soil cultivation is only about 20%.
The rate of A-grade products in soilless culture is more than 94%, and that of soil cultivation is only about 20%. Fourth. Soilless cultivation frees agricultural production from the constraints of the natural environment and allows it to be produced according to human will, so it is a controlled agricultural production method.
To a large extent, farming according to quantitative indicators is conducive to the realization of mechanization and automation, so as to gradually move towards an industrialized mode of production.
In short, from the yield and quality of soilless culture, the cost and benefit are proportional, just like the manufacturing industry, the initial investment is high, the long-term operation return is large, and the most important thing is that clean and pollution-free vegetables are in line with people's growing healthy and green food culture.
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Soilless cultivation does not mean that the importance of land is declining, soilless cultivation is for the better development of agriculture, but Qingqing is the land is vital to agriculture, and it will change if you do not respond to the land.
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Soilless cultivation is the use of other substances to replace soil planting, reducing the harm of soil spitting disease, which does not mean that the importance of land to agricultural production is declining, because some crops are not suitable for soilless cultivation, and the soilless cultivation of Cong Xiao cost seepage vertical draft is relatively large.
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Soilless cultivation is definitely the importance of agricultural production will decline, and the cultivation of good soil and limbs is a high-tech staring for the future, so there will be a big gap for ordinary cultivation.
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Soilless cultivation is a new type of agricultural model, but this does not mean that the importance of land to agricultural production has declined, and land is still the most important part of agricultural production. Hui Fangqing.
Soilless culture has the following advantages:
1) Soilless cultivation does not use natural soil, does not apply organic fertilizer, has no peculiar smell, does not breed mosquitoes and flies, has no soil-borne diseases, has no underground pests, and has a clean production environment. >>>More
The easiest way is to use a tray or foam box, spread the soaked seeds at the bottom, and then maintain the humidity, the seeds generally see the light after germination, and they can be eaten in about a week; You can also spread some loose soil on the bottom and sprinkle seeds to keep it moist.
China Soilless Cultivation Network! Shanghai Sun Bridge! One of the earliest soilless cultivation companies in China. >>>More
The investment is mainly to build greenhouses, the south needs about 5,000 yuan to build an acre of greenhouses, about 12,000 yuan in the north, the existing melon and vegetable flowers can be used directly, one acre only needs to invest about 1,500 yuan, and the investment in melons and vegetables will not increase compared to ordinary greenhouses. Vegetables can be marketed in one month, and the cycle is short and effective. A season of melons and vegetables can not only recover all the investment, but also obtain huge profits, and the one-time investment will benefit for a long time.
Soilless cultivation refers to the method of cultivating plants with nutrient solutions and other equipment without soil. Solution culture (referred to as hydroponics) is the earliest kind of soilless culture that has been applied. As early as the 60s of the 19th century, the German scientist Sachs conducted a solution culture experiment. >>>More