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Card 16
Front
two main ways of nitrogen fixation
Back
Card 17
Front
name the 4 types of bacteria involved in the nitrogen cycle
Back
Card 18
Front
what does nitrifying bacteria do?
Back
Card 19
Front
what does nitrogen-fixing bacteria do?
Back
Card 20
Front
what does denitrifying bacteria do?
Back
Card 21
Front
what is crop rotation? how does it help increase the amount of nitrates in the soil?
Back
Card 22
Front
what are fertilisers? how do they help increase the amount of nitrates in the soil?
Back
Card 23
Front
if there are a lot of bloodworms or sludgeworms in water...
Back
Card 24
Front
if there are a lot of freshwater shrimps or stonefly larvae...
Back
Card 25
Front
if there are a lot of lichen, blackspot fungus...
Back
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