Maxwell Bullet Duragreen 4-0-10 +10%Fe

Maxwell Bullet Duragreen 4-0-10 +10%Fe

Iron sulphate gives the initial colour, iron sucrate gives a gentle and consistent release making iron available to the plant over several months to ensure turf remains a brilliant green.

Maxwell Bullet Duragreen - GranularMaxwell Bullet Duragreen Elemental Components
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Maxwell Bullet Duragreen 4+0+10+10% Fe
with Slow Release Iron 20kg

A supremely formulated specialist fertiliser that can be used all year round. The formulation has 65% of the iron derived from iron sucrate, so performance and longevity can last up to 3 months. Improves the appearance of greens, golf tees and approaches, high value lawns and sports pitches.

Duragreen is low in both nitrogen and sulphur but contains high potassium and an additional 9.9% calcium to harden the turf. Duragreen is ideal for application to turf areas as a treatment before the onset of winter, or as an early season starter. Will stimulate plant colour and improve hardiness without stimulating excessive growth.


Application Rate & Spreader Information

LongevityGranule SizeCutting HeightBag SizeApplication Rate g/m²Bag Coverage
10-12 weeksMini 0.8-1.8mmAll turf especially fine turf20kg35-50400-571

  • Apply evenly, avoid overlapping or missing areas, using a suitable calibrated spreader
  • If there is no rain within 2 days of application irrigate the treated area thoroughly. Do not apply in hot, dry weather or frosty conditions.
  • Should not be applied to wood, stone or any hard standing areas as staining may occur.
SpreaderApplication RateSingle PassDouble PassSpread Width
Accupro (cone 6)35g/m²NK3.5mm
Ev-N-Spread 195035g/m²16103m

Bullet Duragreen Analysis

IngredientOxide ValueElemental Value
Total Nitrogen (N) 4.00%
    Ammoniacal Nitrogen (NH4) 4.00%
Phosphorus Pentoxide (P2O5)0.00%0.00%
    Soluble in neutral ammonium citrate0.00%0.00% P
    Soluble in water 0.00%0.00% P
Potassium Oxide (K2O)10.00%8.30% K
    Calcium (CaO)1.40% 1.00% Ca
    Sulphur trioxide (SO3)21.30%8.53% S
    Iron (Fe) 10.00%
    of which Ferrous Sucrate 65.00% (6.5% Fe)
    of which Ferrous Sulphate (FeSO4)  35.00% (3.5% Fe)
    Manganese (Mn) 2.60% Mn
    Zinc (Zn) 0.488% Zn
    Copper (Cu) 0.163% Cu
    Boron (B) 0.146% B


Chelate Molecule

What is a chelate?

Chelate – pronounced “Key-late” – is derived from the Greek word χηλή, (chēlē) meaning claw because the chelating molecule lies around the central molecule like the claws of a lobster. Practically, a chelating agent is an organic molecule which in simple terms encapsulates a plant nutrition molecule, protecting it from precipitation which would make the nutrient unavailable. Ions encapsulated within a chelating agent are far more likely to be absorbed into the plant via the roots and leaf tissue due to changes to the chelated molecules surface properties. It is this which results in greater efficiency of the applied nutrient.

For further information regarding Maxwell Duragreen, please contact our technical sales team on .

Delivery charges (if applicable) applied at checkout. Next working day delivery is available on ‘In Stock’ items, on orders placed before 12 noon. Please allow 3-5 working days on all other orders – possibly longer during the festive season & bank holidays. Please note deliveries to more remote areas may also take longer. More delivery info Please Note: If you have any access restrictions for lorries or large vehicles please speak to our sales team on . Collection from our Naul, Co. Dublin, Trade Counter is available for this product. More info on collections