Soilless cultivation is a cultivation method that uses substrate instead of natural soil or uses only substrate for planting or seedling. Because soilless cultivation can artificially create a good inter-root environment to replace the soil environment, it can effectively prevent soil crop diseases and physiological barriers caused by soil salt accumulation, fully meet the needs of crops for mineral nutrients, water, air and other environmental conditions, and the basic materials for cultivation can be recycled, with the characteristics of water saving, fertilizer saving, labor saving, high yield and high quality.
Among them,Compared with substrate cultivation system and aeroponic system, vertical hydroponics system is the most popular. What is the reason?
First reason: efficient use of vertical space.
"People do not eat unless they have grain, and grain does not grow unless they have land". Cultivated land is the lifeblood of food production and the basis for people's survival.The space and land savings from vertical hydroponic systems can go some way to giving damaged ecosystems time to recover.
The vertical planting system is a very efficient crop planting method in areas with scarce cultivated land, including cities. The vertical stacking method is used to produce crops, which only occupies a small area, and can also be used in buildings, containers and other industrial spaces.
The second reason: vertically planted crops are more productive.
Hydroponic is a method of planting plants in water-based nutrient rich solution, which is widely used in vertical planting. The basic premise of this method is to allow the plant roots to contact with the nutrient solution directly, and at the same time to obtain oxygen, effectively eliminate bacteria and harmful substances in the soil, so as to achieve green and pollution-free crops.
In the vertical hydroponics planting system, because of the direct contact between the nutrient solution and the crop root, this directly increases the efficient use of water and nutrient components, so that the crop root is under the most suitable environmental conditions, so as to play the growth potential of crops and make crops more productive.
The requirements for the growth conditions of hydroponic vegetables are relatively low. As long as the nutrient solution is used to provide nutrients for vegetables, and the intelligent control of temperature, light, water and carbon dioxide is adopted, the efficient growth of crops can be achieved. This new planting technology can not only avoid soil continuous planting obstacles, but also have no heavy metal pollution, no need to spray pesticides, and can ensure the improvement of vegetable quality.