There are unavoidable problems in the development of soilless culture technology
1. The technical requirements are high, and it is generally difficult to promote
Due to the different nutrient requirements of different crop varieties and different growth stages, the configuration and management of nutrient solutions need to be completed by technically trained personnel, which cannot be widely mastered by ordinary workers. The fertilizer used in the nutrient solution is not easily available in the market and the price is high. This has also become one of the reasons why the soilless culture technology has not been mastered by the majority of laborers.
2. The waste liquid has the risk of polluting the environment
The nutrient solution is inseparable for soilless culture. A series of equipment is required to match the nutrient solution preparation, such as a test system, circulating pumps, etc., and if it is an open cultivation technology, the waste nutrient solution contains high nitrate content, which will easily cause water bodies after discharge The danger of eutrophication; if it is a closed cultivation technique, the presence of a large amount of quality in the nutrient solution is easy to breed pathogens and bring the risk of devastating damage to the crop.
3. High investment cost of system equipment
Various soilless cultivation systems that use nutrient solutions to irrigate crops generally have a one-time investment of at least 6,000 yuan per 667 square meters of land, and some even as high as 50,000 to 60,000 yuan. Even for a more practical ecological soilless cultivation system, one time Sexual investment also amounts to 2,000 to 3,000 yuan.
Each emerging technology has more or less problems of one kind or another in the application process. Soilless culture technology is a very clear case, but this technology that is conducive to the development of sustainable facility horticulture is still worth exploring for practitioners. , Insight into every detail of this technology.
