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Flashcards in Agriculture Deck (15)
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1
Q

what was the green revolution?

A

introduced new technology, crop varieties, and farming practices to the developing world

2
Q

when was the green revolution?

A

1940

3
Q

what did the green revolution help with?

A

it helped increase yield and reduce starvation, but has also degraded soil, water supplies, and pollinators

4
Q

____ _____ maintains healthy soil, clean water, and other vital resources

A

sustainable agriculture

5
Q

a system consisting of disintegrated rock, organic matter, water, gases, nutrients, and microorganisms

A

soil

6
Q

what are sustainable approaches to maximize irrigation efficiency?

A

better match crops and climate, and using less water for irrigation plants because plants only use 40% of irrigation on average

7
Q

substances that contain essential nutrients for plant growth

A

fertilizers

8
Q

____ ____ are mined or synthetically manufactured

A

inorganic fertilizers

9
Q

made of the remains or wastes from organism, including manure, crop residue, charcoal, fresh vegetation, and compost

A

organic fertilizers

10
Q

mixture produced when decomposers break down organic matter in a controlled environment

A

compost

11
Q

the removal of material from one place and its transport to another by wind or water

A

erosion

12
Q

when eroded material is left at a new location

A

deposition

13
Q

what 3 ways do humans make land more vulnerable to erosion?

A
  1. over cultivating fields through poor planning or excessive plowing
  2. grazing rangeland with more livestock than it can support
  3. clearing forests on steep slopes
14
Q

drylands are prone to _____, a degradation where more than 10% of productivity Is lost

A

desertification

15
Q

any plant that competes with crops

A

weeds