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Agronomy QUESTION #2027
Question 1
Drip irrigation is superior to furrow irrigation in terms of water use efficiency primarily because:
  • It applies water at higher pressure, forcing deeper percolation
  • Water is delivered directly to the root zone at low rates, minimizing evaporation, runoff, and deep percolation losses✔️
  • It requires no energy input unlike furrow irrigation
  • It can only be used with sandy soils that have high infiltration rates
Correct Answer Explanation
Drip (trickle) irrigation delivers water through emitters directly to the root zone at very low rates matching crop uptake, dramatically reducing evaporation from soil surface, runoff losses, and deep percolation. WUE under drip is typically 85–95% vs 50–60% for surface methods.