Vegetables are one of the essential foods in people's daily diet. Vegetables can provide essential nutrients such as various vitamins and minerals for the human body, and have the effects of providing multiple vitamins, mineral elements, and improving intestinal function. With the improvement of living standards, people are paying more and more attention to food safety. However, the rapid development of technology has also brought negative impacts to our daily lives, with vegetable pollution being one of the more serious impacts.
In this situation, agricultural technology personnel have comprehensively explored the technical ideas for pollution-free vegetable cultivation, effectively expanding the channels for vegetable cultivation. Soil is the main medium for vegetables to absorb heavy metals through their roots, and its heavy metal content directly affects the absorption and accumulation of this element by vegetables. Therefore, soil heavy metal pollution is an important reason for heavy metal pollution in vegetables. Hydroponic cultivation can break the limitations of soil planting and reduce heavy metal pollution in vegetables.
Greenhouses are often used in modern agricultural cultivation, and their use allows us to eat fresh vegetables in various seasons, bringing convenience to people's lives. Planting hydroponic vegetables in a greenhouse can not only provide vegetable supply throughout the year, but also produce green and pollution-free organic vegetables. How to choose a suitable planting system for greenhouse hydroponic cultivation? Next, we will provide you with two ideas.
Aeroponic Tower System
Aeroponic Tower System is a three-dimensional cultivation system that can improve space utilization and greatly increase the output value per unit area. It is generally used to plant small plant types such as leafy vegetables and is currently the fastest growing aerosol cultivation mode.
Aerosol cultivation can significantly improve production efficiency and product quality, reduce the input of manpower, fertilizers, water, and pesticides. For example, pest control can reduce by more than 75%, water-saving efficiency can reach 90%, and zero discharge of fertilizers, waste, and waste liquid can be achieved in vegetable production. It is a sustainable agricultural production method and is often used in greenhouse hydroponic projects.
However, there are also some issues with the use of the Aeroponic Tower System in greenhouse projects:
1. The root system growth is too developed;
2. High technical requirements for management;
3. High investment and strong dependence on electricity;
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Rotating Tower System
The suspension tower system is a type of hydroponic tower system, which has the advantage of utilizing small space and generating significant economic benefits. It can reduce the repeated installation of waterways, water pumps, light rods, etc., making planting simple and convenient. The suspension tower system adopts a professional slow rotating motor, which can provide uniform light for all plants, with balanced growth and more ornamental value. The disadvantage of the suspension tower system is its high cost and high technical requirements for greenhouse planting.
The above two hydroponic planting systems are both very suitable for hydroponic cultivation of vegetables in greenhouses. Planters can choose the most suitable one according to their needs. In addition, the intelligent operating system can grasp the growth status of plants at any time and adjust them in a timely manner. This way, the yield and quality of vegetables grown are very high.
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