NPK Fertilisers Flashcards
1
Q
formulation
A
measured proportions of compounds of a mixture
2
Q
used to . . .
A
increase production of crops
3
Q
role of nitrogen
A
foliage
4
Q
role of phosphorus
A
roots
5
Q
role of potassium
A
growth
6
Q
ammonia + nitric acid
A
ammonium nitrate
7
Q
ammonia + sulphuric acid
A
ammonium sulphate
8
Q
ammonia + phosphoric acid
A
ammonium phosphate
9
Q
why is ammonia reacted with acids?
A
it is an alkali, so produces soluble ammonium compounds for fertiliser
10
Q
why is phosphorous treated with acids?
A
mined as rock so becomes soluble fertiliser salts
11
Q
what is potassium mixed with?
A
other soluble salts
12
Q
ammonium sulphate fertiliser
A
ionic salts, no metal
13
Q
how to test for the right amount os sulphuric acid when reacting
A
indicator
