Do you know the difference between slow-release and controlled-release fertilisers? Although these terms are sometimes used interchangeably, the terms ‘slow-release fertiliser’ (SRF) and ‘controlled-release fertiliser’ (CRF) strictly do not mean the same thing – even though both do release plant nutrients at a slower rate than when highly-soluble conventional or ‘straight’ fertilisers are used. For those who are unclear of these differences, we hope that the following simplified explanation of these distinctions will be both interesting and informative – and explain the different manner in which each of these two classes of fertiliser releases plant nutrients.Read More