Technical Info: Soil Amendment
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New planting schemes are often sited on nutrient poor soils which have been depleted of organic matter. In many cases, the soil has been disturbed following building or construction.
In order to create a suitable substrate for the plants to root into, the soils need to be enriched with humus to improve the soil properties. Fairfield's compost is made from fruit, vegetable, plant and woody waste. These are some recommended properties of a good compost for use in turf establishment and maintenance:
|
Parameters |
Units of Measure |
Recommended Range |
|
pH* |
pH Units (1:5 water extract) |
7.0 - 8.7 |
|
Moisture Content |
%mm of fresh weight |
35% - 55% |
|
Organic Matter Content |
% dry weight basis |
25% minimum |
|
Electrical Conductivity |
mS/m (1:5 water extract) |
200 maximum |
|
C:N Ratio |
|
20:1 maximum |
|
Screen Aperture Size |
mm |
25 maximum for turf establishment |
Using Compost for Soil Improvement
Container Planting, Site Conditions and Maintenance
Nutrient Values
