Aerosol cultivation is a new cultivation method. It is a soilless culture technology, which uses a spraying device to atomize nutrient solution into small droplets and spray them directly to the roots of plants to provide water and nutrients needed for plant growth. Crops are suspended in a closed cultivation device (pot, box or bed), while roots are exposed inside the cultivation device, and nutrient solution is atomized by a spraying device and sprayed on the surface of roots. It is a feasible way to solve the contradiction between root water and air in all soilless cultivation techniques, and it is also easy to automatically control and carry out three-dimensional cultivation, thus improving the utilization rate of greenhouse space. It can double the output of crops. Plant soilless and substrate-free cultivation is a high-tech agriculture. Because the soil environment is replaced by the artificially created crop root system environment, it can effectively solve the contradiction of water, gas and nutrient supply that is difficult to solve in traditional soil cultivation, and make the crop root system in the most suitable environmental conditions, thus giving full play to the growth potential of crops and greatly improving plant growth and biomass. Aerosol cultivation can not only accelerate the growth of plants, accelerate the growth and development of fruits and vegetables cultivated in agricultural production, shorten the time and greatly improve the biomass, but also have many advantages as follows. 1 is one of the most water-saving cultivation techniques. Water is the most important external factor among the related factors of plant growth, and all physiological activities depend on water, so the management of water in agricultural production has become an important agricultural technical measure. For example, when applying fertilizer, it is necessary to use water for irrigation or sprinkler irrigation, and it is necessary to use water scientifically and reasonably. At present, resource-saving and water-saving agriculture has been advocated and water-saving agricultural technical measures such as drip irrigation have been formed. However, no matter what irrigation method, there are the following unnecessary water consumption and waste phenomena in soil cultivation, such as soil water leakage, surface transpiration and even surface runoff loss. For areas lacking water resources, these irrigation methods. However, aerosol cultivation can make the utilization rate of water almost close to 100%, because in aerosol cultivation, water is supplied to the roots of plants by spraying, and the water collected by atomization flows back to the nutrient solution pool through the liquid return pipe for recycling. Plants are planted in a relatively sealed container or a certain volume of space, and the root system environment is full of space, and there is no loss of water evaporation, and all water is absorbed by the root system. After that, it diffuses into the atmospheric environment through leaf transpiration, that is, all atomized water participates in water metabolism, is absorbed by roots and participates in various metabolic activities, and the rest diffuses back into the atmosphere through leaf transpiration, forming a physiological cycle of water without any other non-physiological losses. Therefore, compared with traditional soil cultivation, aerosol cultivation can save 98% water. It is the most water-saving advanced cultivation mode, which can be used in areas with little water and little rain and desert areas with extremely scarce water resources, and of course it can also be produced and applied in military islands with scarce fresh water. 2. It is also the most fertilizer-saving planting technique. Fertilizer is the basis of plant growth and biomass formation. Plants need fertilizers to absorb and participate in metabolic activities mainly in the form of mineral ions. Plants absorb fertilizer in the form of ion exchange, which is driven by respiratory power. Therefore, the absorption of fertilizer is closely related not only to the ion concentration in the root zone environment, but also to the oxygen metabolism in the root zone. When the root zone environment is deficient in oxygen, even if the roots are placed in an environment with sufficient fertilizer and water, they cannot be absorbed normally and quickly. The roots of plants cultivated by aerosol are fixed in the air and have the richest oxygen environment, so its absorption efficiency of mineral ion fertilizers is extremely high, that is, the utilization rate is extremely high. In the production experiment, it was found that many plants can grow well even using the waste liquid of soilless culture. For example, the experiment of cultivating broad beans with waste liquid by aerosol fully proves that aerosol method can maximize the selective absorption of roots. This is unmatched by hydroponics and soil culture. In addition to the high utilization rate of ion absorption, it is also like the recycling of water. There is no fertilizer and water leakage, soil fixation, microbial decomposition and utilization, and ammonia evaporation loss in soil cultivation environment. It is a cultivation technique with high recycling rate. The other mineral ions participate in the physiological metabolism of plants except selective absorption. Therefore, compared with soil cultivation, aerosol cultivation can save more than 95% fertilizer. 3. It can minimize the pesticides needed for insecticidal sterilization or realize pesticide-free cultivation. Aerosol cultivation adopts air pump, aerosol tank or pyramid-shaped foam board planting system, which is far away from soil and creates a clean soilless environment and an inorganic environment without organic matter. Bacteria and bacteria or insects have no organic nutrition and hiding space, which greatly reduces the probability of pests and diseases. For example, the pyramid-shaped aerosol planting system with extruded board as planting board has the advantages of clean environment, convenient and bright cleaning and disinfection, good ventilation between plants, less extrusion, and less breeding of pests and diseases. If we combine the isolation technology of insect net around the greenhouse, we can basically realize pesticide-free production and cultivate real pesticide-free safe fruits and vegetables. Even if a small number of diseases occur, as long as the physical and electrical function water control technology is combined, it will not produce any chemical residues on the environment and vegetables. Therefore, compared with soil cultivation, aerosol cultivation can reduce the utilization rate of pesticides by 99%- 100%, which is the most advanced technology to produce safe vegetable food in the world. 4. The yield increase rate of aerosol cultivation is incomparable with any other technical measures. There are many technical measures to improve agricultural production, such as formula fertilization, scientific water management, reasonable pruning or application of hormones, environmental control and so on. But no matter which technology, its yield-increasing potential is not as good as that of aerosol cultivation. Generally, the yield-increasing potential of melons and fruits can be increased by several times or even dozens of times, while leafy vegetables can increase the yield by at least 45%-75%. This yield-increasing potential is mainly caused by the optimization of root environment and the evolution of root physiological morphology. In aerosol environment, most of the roots are adventitious roots with high efficiency of absorbing fertilizer and water, and the roots are mainly aerial roots with developed roots. In oxygen-enriched air, its absorption speed can reach the maximum, which is several times or even dozens of times that of soil culture or hydroponics. After accelerated growth, the growth period can be shortened. If you grow vegetables, you can increase stubble. Coupled with the three-dimensional tower cultivation, the comprehensive yield increase rate can reach more than 5- 10 times, that is, one mu of vegetables cultivated by aerosol, and its annual output is equivalent to 5- 10 mu of soil cultivation. This not only saves land, but also achieves the purpose of intensive and efficient management, and it is the most advanced high-yield cultivation technology model at present. 5, the planting environment is not limited, as long as there is electricity, water and light, aerosol cultivation can be carried out to maximize the three-dimensional cultivation. After leaving the soil planting or hydroponics with water circulation, the problem of soil quality will no longer exist. No matter on the empty cement ground in the town, in the desert environment without soil, or in the saline-alkali land unsuitable for growth, plants can be cultivated to maximize the space and environment for plant growth. In addition, after aerosol water supply, three-dimensional cultivation can be carried out, which greatly improves the space utilization rate. Even if stereo cultivation can be realized through stereo seedbed, it takes a lot of material and manpower to build stereo seedbed system, and it also needs to solve the bearing problem of the system. In the aerosol mode, the cultivation system is only filled with weightless aerosol, and the three-dimensional structure of the system can be easily constructed. No matter in the pipeline mode or the seedbed tower mode, there is no need to consider the bearing problem. You can set up a three-dimensional cultivation system at will to maximize the use of space. At present, the problem of continuous cropping in vegetable planting also restricts the development of vegetable industry. Aerosol cultivation will not be like soil cultivation, because a large number of soil-borne bacteria will accumulate after multiple cropping, which will lead to the harm of soil-borne diseases. Many vegetables and fruits must be rotated or cultivated in different places, otherwise the yield and quality will be affected. Aerosol culture system can fundamentally avoid this problem. 6. The environment is clean, without any dirt caused by soil or other pollution, and the factory-style clean production can be completely realized. After leaving the soil environment, the growth of grass, the hiding of insects and the breeding environment of bacteria can be completely eradicated, and there are no pollution sources and pollutants at all. It is the cleanest advanced mode of agricultural production in the future, and the fruits and vegetables it produces are first-class, high-grade clean and pesticide-free safe food, which will become the most advanced technology for human health protection and ecological environment maintenance.