C10: Using Resources Flashcards
1
Q
What minerals do plants need and why? (3)
A
N: Encourages leaf growth and stem formation
K: promotes flower and fruit production and disease resistance
P: (phosphorus) seed growth and root development
2
Q
What are NPK fertilisers?
A
A fertiliser than contains correct proportions of nitrogen, potassium and phosphorus for plant growth
3
Q
What is an advantage of NPK fertilisers compared to others?
A
They are designed with correct proportions for better yield unlike seaweed, manure or other natural fertilisers
4
Q
Which water soluble ions do fertiliser compounds contain? Why are they water soluble?
A
Nh4+
NO3-
PO4 3-
So they can be absorbed by plants
5
Q
A
