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BIOLOGY CH23 Economic Biology — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9ScienceBIOLOGY CH23 Economic Biology4 Marks
Question
Enumerate the advantage of hydroponics.
✓

Answer

Hydroponics was demonstrated by a German Botanist Julius Von Sachs in 1980.
  • Advantages
  1. Crops can be grown in places where the land is limited, doesn’t exist, or is heavily contaminated.
  2. The climate – temperature, humidity, light intensification, the composition of the air can be monitored.
  3. Conservation of water and nutrients.
  4. Controlled plant growth.
  5. No intrusion by weeds.
  6. Fewer pests & diseases
  7. Minimal use of insecticide or herbicides
  8. In deserts and Arctic regions hydroponics can be an effective alternative method.
  9. Hydroponics is successfully employed for the commercial production of seedless cucumber and tomato.

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