Unit 6: Irrigation

Question 1

Irrigation methods

Answer 1

Furrow, flood, spray, drip

Question 2

Furrow irrigation

Answer 2

Farmers dig trenches, or furrows, along crop rows and fill them with water that seeps into the ground.

Question 3

Flood irrigation

Answer 3

Flooding a field with water and letting it seep in evenly.

Question 4

Spray irrigation

Answer 4

Water is pumped into a machine with a series of spray nozzles that spray water across the field.

Question 5

Drip irrigation

Answer 5

A slowly dripping hose laid on the ground or buried.

Question 6

Furrow irrigation pros

Answer 6

Easy, inexpensive, 65% of water accessible by plants.

Question 7

Furrow irrigation cons

Answer 7

35% or water becomes runoff or evaporates.

Question 8

Flood irrigation pros

Answer 8

70-80% efficient

Question 9

Flood irrigation cons

Answer 9

More disruptive to plant growth than furrow.

Question 10

Spray irrigation pros

Answer 10

75-95% efficient

Question 11

Spray irrigation cons

Answer 11

More expensive than furrow and flood, uses quite a bit of energy.

Question 12

Drip irrigation pros

Answer 12

Most efficient method, 95% efficient, prevents weeds.

Question 13

Drip irrigation cons

Answer 13

Hose needs to be moved for plowing.