3.1 Food supply, plant growth and productivity 1.3a and 1.3b photosynthesis

Get a hint

What is food security?

Click the card to flip 👆

1 / 28

Terms in this set (28)

the ability of human populations to access foods of sufficient quality and quantity over a sustained period to avoid starvation or malnutrition

increase in human population effect on food

concern for food security as raised overall requirements for food and more difficult in ensuring for security for all. leads to a demand for increased food production. food production must be sustainable and not have a negative impact on the ecosystem and natural resources

food security aspects

-availability as existence of food in sufficient quantities and of appropriate quality
-accessibility so sufficient economic and infrastructure resources to access available food resources
-usage so level of nutritional knowledge needed to use food resources properly
-sustainability so degree to which food security can be guaranteed over extended time periods

all food production dependent ultimately on

photosynthesis whether plant or animal food products

agricultural production depends on factors that control photosynthesis and plant growth :

-light availability
-available nutrients
-water in the soil
-competition with other plants

Soil factors, environmental factors (temp, rain), crop factors cultivar, pests, disease, competition)