The major drawbacks to hydroponics

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The major drawbacks to hydroponics
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• Wick system- the biggest draw back of this system
  is that plants that are large or use large
  amounts of water may use up the nutrient solution
  faster than the wick(s) can supply it. 
• Water culture- the biggest draw back of this kind
  of system is that it doesn't work well with large
  plants or with long-term plants.
• Drip, flood and drain and n.f.t. are all subject
  to power failures.

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The effects on farmers

• If hydroponics becomes a major part of the
  agricultural world then farming as we know it
  today will no longer be.
• All the tractors and farm equipment will be gone
  and the farm land will become houses.
• All of our food as in veggies will be grown in
  water and a greenhouse.