Chemical Controls
When the pollutants increase as it moves through the food chain.
Bioaccumulation
This crop is grown primarily to feed livestock but is also eaten by humans
Oats
This substance gives plants a place to sink their roots and anchor themselves
Soil
This basic nutrient found in the soil has the chemical symbol Mg
Magnesium
When the soil becomes too salty so plants cannot grow.
Salinization
This chemical control is used to kill fungi/mould pests
Fungicides
This crop is often pressed to extract oil which is used for cooking or turned into margarine
Canola
Humus
This basic nutrient found in the soil has a foul smell and is yellow in colour.
Sulphur
This methods helps restore soil nutrients when there is a loss of topsoil by switching what crops grow on the land.
Crop rotation
This chemical control is used to kill insect pests
Insecticides
This crop is fed to livestock, eaten by humans and is used for making malt flavouring.
Barley
The original rock that gets broken down over time to form the soil.
Parent material
This essential nutrient is used by plants for stem and leaf growth
Nitrogen
This form of control is when a farmer uses a pests natural predators
Biological control
This super pest was originally introduced to Canada to be used in salads.
These crops are high in protein, fibre and carbohydrates
Legumes
The layers of soil from different places
Soil profile
This essential nutrient is used by plants for root growth
Phosphorus
This pest steals moisture, nutrients, light and space from plant crops.
Weed
The form of chemical control used to kill plant pests.
Herbicides
This crop is grown for its leaves and stems. They are fed to livestock.
Alfalfa
These are found in healthy soil and help loosen the soil by making holes or help break down plant and animal tissues.
Decomposers
This essential nutrient is used by plants for flower and fruit development.
Potassium
Organic Food