Fertiliser

On some planting sites, fertiliser is necessary to promote early tree growth. The application of fertiliser should be undertaken based on a prescription resulting from a chemical analysis of soil or if after planting, of foliar samples.

Ideally broadleaf sites seldom require fertiliser. If a nutrient deficiency is suspected at any stage, a foliar analysis should be carried out.

Fertiliser must be applied between the months of April and August, preferably in May or June during dry weather minimising the run-off risk. This is to maximise fertiliser uptake and minimise the risk of environmental damage. All fertiliser should be applied broadcast and evenly distributed after tree planting.

Apply fertiliser manually to afforestation sites avoiding drains, buffer zones, areas within 20 metres of aquatic zones and waterlogged areas.

Fertiliser should not be applied during or immediately after periods of heavy rainfall.

Phosphate

Phosphorous deficiency in conifer trees is characterised by: poor height growth; dull green needle
colour; reduced needle length; and sparse foliage.
Phosphorus is the most commonly applied fertiliser on newly planted trees, usually in the form of Ground Rock Phosphate (GRP):

On former agricultural land where there is a phosphate deficiency a rate of application of 250kg/ha is recommended of Granulated Rock Phosphate (approx 11% P) or Ungranulated Rock Phosphate (approx 14% P).