Schädlings-Frei-Organic
€16,95
For spraying or watering, depending on the authorised use. The method depends on the plant, pest and location.
Mixing compatibility confirmed by GREEN24.
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At a glance
Meister Set K – Potassium Fertiliser Refill, 250 ml
Potassium-focused PROFI LINE K liquid concentrate for refilling the Meister Set. One bottle contains 250 ml and is suitable for soil and foliar feeding.
- NPK
- 2.5–4.0–6.0
- Dilution
- 10 ml per 2.5 litres of water
- Application
- Soil & foliar feeding
250 ml makes 62.5 litres of fertiliser solution.
Mix 10 ml (2 capfuls) with 2.5 litres of water; apply every 1–2 weeks from April to September, according to growth.
Easy application
Meister Set K – Potassium Fertiliser Refill, 250 ml: correct dosage
Enter the water volume in litres. The calculator works out the concentrate needed. View application
3 litres · standard4 litres · Plus
* Severe deficiency, heavy feeders, intensified feeding. Increases the indicative application volume, not the concentration.
Please enter valid positive numbers. A comma or full stop can be used as the decimal separator.
Approximate amount of waterApproximate prepared solution10 L
Add concentrateConcentrate needed for this amount40.0 ml
Shake well before use. Add the concentrate and mix thoroughly.
Mix 10 ml (2 capfuls) with 2.5 litres of water; apply every 1–2 weeks from April to September, according to growth.
Choosing 3 or 4 litres changes the approximate amount of prepared solution to apply. The concentration is determined separately by the selected growth stage. Always mix according to the label.
A rough guide for one root application, not an exact water requirement: use your usual watering volume and the substrate’s capacity as a guide. Water the root zone first, then distribute the fertilizer solution evenly. This is not a spray volume for foliar feeding.
The calculated amount is for the entire hedge section entered, not for each individual plant.
Guide: plant width × plant height × 3 litres of prepared solution; for increased nutrient deficiency, × 4 litres. All dimensions in metres. Measurements entered in centimetres are automatically converted to metres.Guide for standards and trees: crown width × total tree height × 3 litres of prepared solution; for increased nutrient deficiency, × 4 litres. All dimensions in metres. Measurements entered in centimetres are automatically converted to metres.Guide for the whole hedge: hedge height × hedge length × 3 litres of prepared solution; for increased nutrient deficiency, × 4 litres. All dimensions in metres. Measurements entered in centimetres are automatically converted to metres.
Hydroponics
Hydroponics requires product- and crop-specific instructions. The watering dilution above is not a guide for a permanent nutrient solution. This calculator therefore does not calculate hydroponic doses, EC targets or top-up amounts for this fertiliser concentrate. Please discuss the product and your hydroponic system with our advisers.
Contact our advisers →Irrigation system / fertilizer injector
Dosing units, irrigation systems and fertilizer injectors need settings suitable for the product and equipment. Plant size alone cannot determine pump settings, running time or a stock solution.
- Establish the actual water flow and intended running time.
- Check injection ratio, suction and product suitability against the equipment and product instructions.
- Prepare a flow test with clean water according to the equipment instructions. Do not use the normal watering dilution as continuous injection without checking its suitability.
Product information
Application & dosageMandatory instructions and the product leaflet.
Mandatory application instructions
Mix 10 ml (2 capfuls) with 2.5 litres of water; apply every 1–2 weeks from April to September, according to growth.
Suitable for soil and foliar feeding. Follow the safety and application instructions below.
Please follow the product-specific information on the label and in the full description.
Information sheet 130405 – liquid fertilizer concentrates (PDF) ↗
The general information sheet describes liquid fertilizer concentrates. Ready-to-use and solid fertilizers have their own application instructions on the product label.
Mixing with other productsMixing, combining or applying separately
Using products as part of the same care routine is different from mixing them in one container. Follow the labels and application instructions of all products involved.
- Tank mixing: Combine products in a watering can or spray tank only when the manufacturer instructions confirm the specific combination and use. Do not mix undiluted concentrates together.
- Separate application: Applying products separately or at different times does not automatically establish compatibility. Check the species, location, plant condition and instructions for both products. No universal waiting period follows from this.
- Complementary products: A recommendation for suitable growing media, accessories or another care product does not mean that it may be mixed with the fertiliser.
- Plant protection products: The crop, target organism, application method and pack instructions must also be suitable. The fertiliser calculator does not calculate plant protection product quantities or confirm compatibility.
Plant protection products and application
Check the plant species, pest and location for each product. Use the current instructions for dosage, application rates and water volumes.
Combine fertilising and plant protection
For an explicitly confirmed mixing partner. Confirmation applies to each product individually.
- Prepare the fertiliser solution using the appropriate water volume and dosage.
- Use the selected plant protection product’s instructions to determine its dosage and application rate, then add it to the prepared fertiliser solution.
- Mix thoroughly and use for the specified watering or spray application.
The fertiliser calculator calculates fertiliser only. Its watering volumes and young plant or seedling adjustments do not apply to plant protection products.
Use plant protection products safely. Always read the label and product information before use.
GREEN24 · Product knowledge
About Meister Set K – Potassium Fertiliser Refill, 250 ml
Potassium-focused PROFI LINE K liquid concentrate for refilling the Meister Set. One bottle contains 250 ml and is suitable for soil and foliar feeding.
Application
Mix 10 ml (2 capfuls) with 2.5 litres of water; apply every 1–2 weeks from April to September, according to growth.
250 ml makes 62.5 litres of fertiliser solution.
Declaration
NPK fertiliser solution 2.5–4.0–6.0 made using fertilisers. 2.50% total nitrogen, including 2.00% urea nitrogen. 4.00% water-soluble phosphate (P₂O₅); 6.00% water-soluble potassium oxide (K₂O). Net mass: 281 g per 250 ml. Starting materials: NPK fertiliser. pH 6.8.
Trace nutrients, original figures in % / g/l: boron (B) 0.0050% / 0.0625 g/l; copper (Cu) as EDTA chelate 0.0020% / 0.0250 g/l; iron (Fe) as EDTA chelate 0.0100% / 0.1250 g/l; manganese (Mn) as EDTA chelate 0.0060% / 0.0750 g/l; molybdenum (Mo) 0.0005% / 0.0065 g/l; zinc (Zn) as EDTA chelate 0.0020% / 0.0250 g/l.
Responsible supplier: GREEN24 GmbH, Am Neggenborn 125, 44892 Bochum, Germany; info@green24.de.
Information sheet 130405 – general application of liquid fertilisers
Safety and storage
Safety instructions
SDS – Safety data sheet available on request.
- For horticultural use.
- Suitable for soil and foliar feeding.
- Keep out of reach of children and animals.
- Shake well before use.
- Store dry and dark, above 8 °C and at no more than 38 °C.
- Official advisory recommendations take precedence.
- Concentrate: Do not apply undiluted.
- Use low-lime water or rainwater at a temperature of 15–25 °C where possible.
- Do not fertilise in direct sunlight or at temperatures below 5 °C or above 30 °C.
- Apply only to a pre-moistened root area or spray the foliage.
- Apply only from April to September and according to growth; follow the product-specific interval.
- Do not spray open flowers.
- Avoid contact with skin, eyes and clothing.
- Avoid aerosol formation and ensure adequate ventilation.
- Do not eat, drink or smoke while working. Wash hands after use.
- Do not store together with food or animal feed.
- Keep containers tightly closed and store in original containers or containers of equivalent material in well-ventilated rooms.
- Do not allow the product to enter drains, surface water or groundwater.
- For prolonged or repeated contact, wear nitrile protective gloves; wear close-fitting safety goggles where splashing is possible and use normal protective work clothing.
Wash your face and hands thoroughly. Use diluted fertiliser promptly and keep it out of water bodies and wastewater.
Storage
Please follow the product-specific information on the label and in the full description.
Read the full product description →