13.4 use of natural and artificial fertilisers Flashcards
1
Q
how do fertilisers increase productivity?
A
- nitrogen is in amino acids, ATP and DNA
- all needed for growth
2
Q
what are natural fertilisers?
A
- organic
- consist of dead and decaying remains of plants and animals
- e.g. manure, slurry and bone meal
3
Q
what are artificial fertilisers?
A
- inorganic fertilisers
- mined from rocks
- contain nitrogen, phosphorus and potassium
