Minerals Flashcards
1
Q
Why is magnesium used by plants?
A
To make chlorophyll
2
Q
Why is calcium used by plants?
A
To strengthen the cell walls
3
Q
Why is nitrate used by plants?
A
To make protein for new cells
4
Q
What are fertilisers used for?
A
Helping the plant grow
5
Q
What are the advantages of using artificial fertilisers?
A
They are absorbed by plants right away and dissolve very quickly into the soil water
6
Q
What are the disadvantages of using artificial fertilisers?
A
They are expensive
7
Q
What are the advantages of using natural fertilisers?
A
They are cheap
8
Q
What are the disadvantages of using natural fertilisers?
A
They are slow acting and have to be ploughed months before needed
