1. Food Supply, Plant Growth and Productivity - Agricultural Production Flashcards

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1
Q

What is food supply?

A

The ability of human populations to access food of sufficient quality or quantity

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2
Q

Why must food production be sustainable?

A

So it does not degrade the natural resources on which agricultural depends

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3
Q

What is all food production ultimately dependant upon?

A

Photosynthesis and the factors that control it

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4
Q

Where does most human food come from?

A

A number of plant crops (cereals, potato, roots, legumes)

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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

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6
Q

Why do livestock produce less food per unit area than plant crops?

A

Due to loss of energy between the trophic levels

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