Fertilise Wise Campaign
Lawn and garden fertilisers are
one of the largest threats to our rivers as nutrients added to our
sandy soils are easily leached. The lack of awareness of the impact
of fertilisers on the rivers is a target for the Phosphorus Awareness Project's (PAP) Fertilise Wise campaign.
The PAP's aim is to reduce the amount of nutrients
(phosphorus and nitrogen) people contribute to waterways through
stormwater drains and leaching into groundwater by promoting appropriate
fertiliser practices for the soils of the region.
Click here to watch short Fertilise Wise video
You can help by:
only when symptoms of nutrient deficiency occur eg. yellowing
Fertilise Wise endorsed
Currently one fertiliser company’s product range has achieved Fertilise Wise endorsement.
Look out for these Fertilise Wise endorsed fertilisers at your local hardware store or garden centre >
Wise fertiliser endorsement criteria
use a complete lawn fertiliser containing a Nitrogen: Phosphorus:
Potassium (N:P:K) ratio of 10:1:6.
for fertilisers that also contain other nutrients such as sulphur
(S), magnesium (Mg), calcium (Ca) and the trace elements copper
(Cu), iron (Fe), manganese (Mn), boron (B), zinc (Zn) and molybdenum
MAXIMUM individual application rate for the fertiliser should be
25 grams per square metre for Couch and 12 grams per square metre
for Kikuyu and Buffalo
fertiliser is required, apply in spring or early Autumn (Sept, Oct,
Nov, Mar and Apr)
not fertilise in summer or winter
not over water
local plants – they require less fertiliser and water
the map below, identify your soil type. And then download the Fertilise
Wise Guide and Local Plant Guide that applies to your area: