Horti-Base is available in five formulations; four products for peat-based composts and one product for coir:
Peat Mix A
A balanced NPK formulation for general use in potting mixes and in glasshouse soils.
Peat Mix B
A high performance formulation, for fast growing crops requiring more generous levels of potash and trace elements.
Peat Mix C
A low Nitrogen formulation with high Phosphate to encourage good rooting on sensitive crops (eg Antirrhinum, Primula).
Peat Mix D
A high Nitrate formulation, specially designed for seedlings, young plants and Ammonium sensitive sp (eg Begonia, Impatiens, Poinsettia and St Paulia). Mix D is a balanced mix with generous levels of trace elements.
Coir Mix
Contains a high level of phosphorus and Trace Elements in slowly available Frit form. This helps minimise leaching losses in the first few weeks of use. The mix contains no Potash, as a high level of K is already present in the coir.
All mixes are ground to a fine powder to ensure even mixing with the compost substrate.
The Horti-Base Range of Compound Nutrient Powders (%w/w)
| a |
Peat
Mix A |
Peat
Mix B |
Peat
Mix C |
Peat
Mix D |
Coir
Mix |
| Nitrogen (N) |
14.0
|
13.0 | 7.0 | 15.0 | 9.0 |
| - as Nitrate-N | 4.0 | 6.5 | 35 | 8.6 | – |
| - as Ammonium-N | 10.0 | 6.5 | 3.5 | 6.4 | 9.0 |
| Phosphorus (P2O5) | 16.0 | 11.0 | 21.0 | 10.0 | 21.0 |
| Potassium (K2O) | 18.0 | 23.0 | 21.0 | 16.0 | – |
| Mangnesiun (MgO) | 0.7 | 1.5 | 4.0 | 3.8 | 4.8 |
| Iron (Fe**) | 0.15 | 0.23 | 0.09 | 0.09 | 0.17 |
| Manganese (Mn) | 0.10 | 0.15 | 0.16 | 0.16 | 1.6-.8* |
| Boron (B) | 0.03 | 0.04 | 0.4 | 0.03 | 0.25- |
| Zinc (Zn) | 0.03 | 0.04 | 0.4 | 0.04 | 0.35* |
| Copper (Cu) | 0.02 | 0.03 | 0.23 | 0.15 | 1.3-1.6* |
| Molybdenum (B) | 0.01 | 0.02 | 0.23 | 0.20 | 1-3-1.6* 0.3-0.4* |
* Trace Elements in slowly available Frit Form.
** Chelated Iron added as EDTA in Peat mixes A,B and as EDDHA in mixes C, D & Coir mix.
Horti-Base mixes are packed in easy to handle 20 kg bags.
Made to measure service. Includes special Calcifuge mixes. Minimum order size = 500 kg
Hortifeeds 2001