What are the advantages and disadvantages of traditional culture and soilless culture?

The advantages of soilless cultivation of vegetables are: rapid seedling growth, short seedling age, well-developed root system, neat Miao Zhuang, short seedling delay time after planting and high survival rate. Both substrate seedling raising and nutrient solution seedling raising can ensure sufficient water and nutrient supply. As for hydroponics, the meaning of this word can be understood as that vegetables are grown in water. The water here is not water in the traditional sense, but nutrient solution. In hydroponic mode, nutrient solution is the core of vegetable cultivation and the source of nutrition for vegetable growth.

Vegetable production in urban suburbs and industrial and mining areas is polluted by waste water, waste gas, waste residue and urban garbage, and its quality is declining, which hinders people's health. Using soilless culture technology to produce vegetables can avoid the above pollution. Soilless culture can produce clean, hygienic and pollution-free products. Because soilless culture does not use human feces, manure and other agricultural fertilizers. And there are relatively few pests and diseases. It doesn't use a lot of pesticides and doesn't spray herbicides. Soilless culture does not need intertillage, digging holes, weeding and other operations, which saves labor and effort. Watering and topdressing can be solved at the same time, and the liquid supply system can supply it regularly and quantitatively, which is convenient for management, will not cause waste and greatly reduce the labor intensity.

The roots of conventional cultivated crops are rooted in the soil layer with good buffering effect, which is full of aqueous solution and air, and needs to absorb the water and nutrients needed for crop growth. Soilless culture is characterized by replacing soil environment with artificially created crop root growth environment, which can not only meet the needs of crops for various minerals, water and air conditions, but also control and adjust according to different crop growth needs.

The water and nutrient solution of soilless culture technology can be recycled without waste. However, common cultivation nutrients will cause a lot of losses. With the reliable technical support, the products produced by soilless culture technology have the advantages of high yield and good quality. Protection facilities such as greenhouses or greenhouses are used to control environmental conditions for off-season (off-season) production.