1. Food Supply, Plant Growth and Productivity - Agricultural Production Flashcards
1
Q
What is food supply?
A
The ability of human populations to access food of sufficient quality or quantity
2
Q
Why must food production be sustainable?
A
So it does not degrade the natural resources on which agricultural depends
3
Q
What is all food production ultimately dependant upon?
A
Photosynthesis and the factors that control it
4
Q
Where does most human food come from?
A
A number of plant crops (cereals, potato, roots, legumes)
5
Q
What are three things we must do because the area to grow crops on is limited?
A
Control plant growth
Breed higher yielding cultivars
protect plants from pests, diseases and competition
6
Q
Why do livestock produce less food per unit area than plant crops?
A
Due to loss of energy between the trophic levels
