The organic base of OPF consists of plant based raw materials with high levels of natural sugars. Specific fermentation processes upgrade the organic materials to an excellent fertilizer. The high content of trace elements and sugars supports a healthy soil life and provides healthy and stable plant growth. The amino acids in OPF originate from plants and are therefore easy to absorb, even at low temperatures. The balance between slow and quick released nitrogen elements ensures an effect of up to 3 weeks. OPF is a natural product and contains no preservatives.
OPF liquid has been greatly improved
At PHC we are constantly working on product development to optimize our products. OPF liquid fertilizers are now processed at 200 micron particle size. This has significantly improved the sprayability, making OPF liquid fertilizers suitable for use in practically all spray systems. An additional advantage is an even better stability of the formulation. The high concentration of vegetable amino acids and the specific composition of minerals make OPF a good choice in the tank mix.
Minimum dilution with water 1:20, 600-1000 liter water/ha. Spray diluted or mixed product within 4-6 hours. Perform a test spraying on sensitive crops. Do not mix with copper fertilizers.
Used raw materials are extracted from commonly grown crops, possibly resulting in residue. For fertilization in tomato cultivation, OPF 7-0-2 is recommended.
Different doses may apply for the recovery of fields in poor (bio) condition. Consult your product representative for tailor made advice.
||Irrigation / fertigation
||5-10 1/ha, biweekly
||5-10 1/ha, 2 – 3 weeks
||10 – 50 l/ha, biweekly
||3-5 l/ha, weekly
||5 %, as needed
||1 ml/m2, weekly
||25-50 l/ha, biweekly
Use in combination with other (PHC) products
OPF 4-2-8 may be used in combination wit all other PHC fertilizers, PHC bacterial products, PHC mycorrhiza products and PHC plant enhancers. The use of Biopak, MooR and PHC mycorrhiza products supports efficient use of fertilizers. Application of Fulvic 25 amplifies the effect of OPF 4-2-8.
|Totaal dry matter
||49.3 % (of total weight)
|Organic matter (OS)
|| 35.9 %
||5.5 – 6.0
||13 – 15 %
|| 1.3 kg/l
For other product information, please refer to the technical data sheet (downloadable on this page).
As with all organic materials, the analysis can deviate by 15%.
OPF 4-2-8 is an organic liquid fertilizer and is approved for use in organic farming in accordance with EU regulation 834/2007, NOP (Control Union: P180973) and NPOP. Approved input by Soil Association (UK) and Kiwa Sverige AB (SE). Belgium Exemption EM064.I: Solution of compound fertilizers NPK with amino acids. Check current listings also on inputs.bio, inputs.eu.
Approved input for use within Bio-Austria; Check current admission and possible restrictions on infoxgen.com.
Packaging, transport & storage
OPF 4-2-8 is supplied in cans of 20 litre or IBC’s of 1.000 litre. Must be stored closed, dry, in a frost-free place, away from direct sunlight. Large or sudden temperature changes may cause crystals. OPF 4-2-8 is free of preservatives and therefore long-term storage might not be stable. Shake, stir or aerate the product before use in order to restore the original structure. PHC can supply special aerate rods that supports aeration.
Shelf life: 1 year (possible up to 2 years).
Health and safety information
Not intended for ingestion. Wash hands after use. While handling the product, wear protective clothing. In case of an accident or if you feel unwell, consult a doctor. KEEP OUT OF REACH OF CHILDREN.
Plant Health Cure sells the product OPF. Follow the instructions on the packaging closely for use. We cannot guarantee suitability of the product outside the originally intended application. Plant Health Cure is only obliged to replace products that do not meet the specifications. Suggestions for use and information about results after use of the product – obtained from the manufacturer – can be considered reliable. As Plant Health Cure cannot exercise any control over the conditions of use, the buyer/user is responsible for all results, including injury or damage resulting from the use of this product alone or in combination with other materials. Keep out of reach of children.