Commercial DFT hydroponics growing system is an existing soilless culture technology. Vegetables in this hydroponic planting system are fertilized with nutrient solution, and minerals needed for vegetable growth are dissolved in the nutrient solution. Soilless cultivation requires a planting pot composed of a liquid storage basin and planting parts. The planting parts are used to contain and support the vegetables to be planted. The roots of the vegetables are suspended in the plating liquid, and the vegetables are continuously cultivated during the growth process. The nutrient solution needed for vegetable growth is added to the liquid.
The biggest advantage of the commercial DFT hydroponics growing system is that it has a better cushioning ability. The nutrient solution where the root system is located is deeper and has a larger base. The nutrient, dissolved oxygen, pH, temperature, and moisture in the nutrient solution will not change significantly in a short time. It can have a certain degree of power failure or equipment failure. Survival skills provide more stable growth conditions for crops.
It is worth noting that the crop needs to be suspended above the nutrient solution. The rhizome part does not fight the nutrient solution, and the root system can get the nutrient solution because if all the rhizomes are soaked in the nutrient solution, the plant will quickly rot. Other nutrient solutions should be kept active or circulated regularly so that harmful substances can be removed, and the oxygen content of the nutrient solution can be increased, and the nutrient solution can be evened, which is more conducive to the absorption of crop roots.
When using the commercial DFT hydroponics growing system to grow vegetables, since most leafy vegetables eat the stems and leaves of plants, and some leafy vegetables are mainly eaten raw, the safety and hygiene requirements of the products are high. The hydroponic leaf vegetable analogy is cleaner, fresher, safer, hygienic, and superior in quality than traditional soil-grown leaf vegetables. Therefore, the application of hydroponics in leaf vegetable production has gradually become popular. The hydroponic method of leafy vegetables has the following characteristics:
1. Simple operation. Annual cultivation can be carried out on the same site, sowing, planting, and harvesting can be carried out at any time for uninterrupted production.
2. High economic benefits. As the hydroponic method belongs to facility production, it is not vulnerable to typhoon damage. Providing fresh vegetables during the typhoon season in coastal areas can bring higher income to farmers.
3. Convenient production management. Due to the short growth cycle of leafy vegetables, if there are no serious pests and diseases during the growth period, only one nutrient solution is required.
The first is precision sowing, the seeds are sown into the plugs for seedling cultivation, and the seeds are accelerated after sowing. After the seedlings have grown in the plugs for a period of time, the seedlings are transplanted, and the vegetable seedlings are transplanted from the cultivation plugs to the cultivation trough or the cultivation holes, and then the leafy vegetables are cultivated by the nutrient solution hydroponic method. After a period of cultivation, the harvest period can be reached. About twelve to fifteen crops can be cultivated a year.