- Excessive use of chemical fertilisers make the soil acidic .
- Plants do not grow well when soil is either too acidic or too basic .
- When soil is too acidic it is treated with base such as quicklime (calcium oxide) or slaked lime (calcium hydroxide)
- When soil is too basic , then decaying organic matter ( manure or compost ) is added to it.
Why is the use of manures/natural fertilisers preferred over chemical fertilisers ?
Last updated at March 28, 2023 by Teachoo