The disadvantagesIt is a system that has a rather high initial investment because of the expensive equipment and tools.Some types of "difficult material may cause a problem to the environment, such as foam, sponge, etc. In addition, if the plant nutrition management is poor, it may be great, which is found at Niagara falls in extra water.Must have the knowledge and skills to manage the system, for example, if a root or planting materials accumulated in the salt will make the plants absorb water.Get rid of the message, the type of crop grown due to higher investment to grow in soil, so choose a plant with a unit price that is worth further investment.There must be sufficient to accommodate the market, because plants grown with fast growth and high yield.If planted in the water circulation system. The disease is spreading to other plants would cost easily. Other causes that are difficult to control, causing damage, such as a power failure. Faulty equipment.How to make a commercial quality sources must be selected, and there must be people who have the technical knowledge of the technicians stationed in agencies.
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