Blaukorn 
A range of granular NPK fertilisers, with added magnesium and trace elements, with a granule size range of 2-4mm, averaging 3.2mm (except where indicated below). These are produced by Compo Expert.
Blaukorn classic 12-8-16 (+3%Mg, 10%S +TE);
Blaukorn 12-12-17 (+2% MgO, 8% S +TE);
Blaukorn pro 14-7-17 (+2% MgO, 9%S +TE) (granule range 2mm-5mm; average diameter being 3.4mm);
Blaukorn premium 15-3-20 (+3% MgO, 10%S +TE);
Blaukorn suprem 21-5-10 (+3% MgO, 6% S +TE);
Blaukorn N-Max 24-5-5 (+2% MgO, 5% S +TE).
Bone Meal
An organic source of phosphate which also supplies a small amount of nitrogen. It was traditionally used as a fertiliser for seed beds and prior to turfing. It typically contains 10% phosphorus (22% phosphate) and a small amount of nitrogen at 4% but being organic in origin this will vary with a typical range being 3.5-5% N, and 20 ¯ 25% P2O5). Regular applications of bone meal can encourage weeds, especially clover, and encourage earthworm activity.
Bullet Calcium Phosphite
A product name for a soluble liquid concentrate of calcium phosphite, providing 25% P2O5 and 19% CaO (13.58% Ca) used as a foliar spray. The application rate is 5-10 litres of concentrate in 220-600 litres of water per hectare. It is supplied by Agrovista Amenity.
Bullet Chelated Iron
A product name for a soluble liquid concentrate of chelated iron, providing 7.52% Fe, 13.6% SO3 and 2.48% N.
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Bullet Liquid Iron
A product name for a soluble liquid concentrate of iron (6.1%), along with sulphur (7%) and manganese (0.26%), from a source of iron sulphate.
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Bullet Magnesium
A product name for a soluble liquid concentrate of magnesium (3%), with a small amount of nitrogen (2.2%), from a source of magnesium nitrate.
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Bullet Manganese
A product name for a soluble liquid concentrate of manganese (17.3%), with a small amount of sulphur (3.7%), from a source of manganese sulphate.
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Bullet Phosphite
A product name for a soluble liquid concentrate of phosphite and potassium, providing 33.1% P2O5, 37% Phosphite PO3 and 20.3% Potash K2O. The application rate is 5-10 litres of concentrate in 200-300 litres of water per hectare. It is supplied by Agrovista Amenity.
Bullet Potassium Silicate
A product name for a soluble liquid concentrate of potassium (27.9%) and silicon (22.9%).
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Bullet Trace Element Complete
A product name for a soluble liquid concentrate consisting of 6 micronutrients.
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