3.8 Sustainable agriculture

Question 1

strategies for sustainable
agriculture

Answer 1

• organic fertiliser (crop residue, manure)
• managed grazing (livestock rotation)
• crop rotation
• use of pest resistant and drought resistant
  varieties of crops
• trickle drip irrigation
• rainwater harvesting

Question 2

Organic fertiliser

Answer 2

Reduces the risk of eutrophication;
Are a waste product, using them saves on disposal costs
Also, improve soil structure.
Are already present on many farms

Question 3

managed grazing

Answer 3

Prevention of overgrazing;
Ensure sufficient grazing;
Maintaining appropriate soil fertility by animal waste

Question 4

crop rotation

Answer 4

reduces soil erosion

Question 5

use of pest resistant varieties of crops
Use of drought-resistant varieties of crops
Use of herbicide-resistant varieties of crops

Answer 5

Use of pest-resistant varieties of crops: reduces pesticide use.
Use of drought-resistant varieties of crops: reduces water usage for irrigation.
Use of herbicide-resistant varieties of crops: reduces herbicide use.

Question 6

Rainwater Harvesting

Answer 6

the collection of rainwater, for example, from the roofs of buildings and its storage in a tank or reservoir for later use.

Question 7

ways to reduce water usage in agriculture

Answer 7

GMO crops
rainwater harvesting
trickle Drip Irrigation