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Langeberg, Langebaanweg, Vredenburg, Western Cape South Africa
Work Hours
Monday to Friday: 8AM - 5PM
Results & Research
Results & Resources
Proven Performance. Backed by Science.
Discover the real-world impact of Langfos and Eco Pellets through yield data, field trials, testimonials, and expert reports. Whether you’re a commercial grower, agronomist, or retailer, our resource library gives you access to valuable insights, technical documentation, and product performance results — all in one place.
RESULTS IN THE FIELD
Consistent Yields. Proven Value. Trusted by Farmers.
Langfos delivers long-term phosphorus availability and measurable results across a variety of crops and climates. Broadcast before planting and paired with nitrogen top-dressing and planting mixtures, Langfos remains one of the most cost-effective fertilization strategies in South Africa.
FIELD-PROVEN RESULTS ACROSS CROPS
From Maize to Sugar Cane – Langfos Delivers Measurable Yield Gains
Across South Africa, farmers have seen the benefits of Langfos in real-world conditions — from dryland maize fields to intensive sugar cane operations. Applied through broadcast or top-dressing methods and paired with planting mixtures and nitrogen, Langfos consistently improves soil health and increases yield. With long-term phosphorus availability and region-specific performance, these results highlight the reliability and versatility of Langfos across crops, climates, and soil types.
Maize:
Eastern Cape
6.3 ton/ha. 500 kg of Langfos/ha followed by planting mixture and nitrogen top‑dressing.
Eastern Free State
6.3 ton/ha. 600 kg Langfos/ha followed up by planting mixture and nitrogen side‑dressing.
Western Transvaal
5.22 ton/ha. 500 kg Langfos/ha supplemented with planting mixture and nitrogen top‑dressing.
Wheat:
Langfos broadcast before planting, natural rainfall.
Cape
– 4.86 ton/ha. 290kg of Langfos + 50kg of Supers and nitrogen top-dressing.
Eastern Free State
– 5.4 ton/ha. 1000kg of Langfos applied once for 3 years ahead, followed yearly by planting mixture.
– 3.42 ton/ha. 350kg of Langfos/ha and plant mixture.
Pasture:
– Langfos as top-dressing, natural rainfall.
Sugar Cane:
Langfos at planting into the furrows and as top-dressing for racoon crops, natural rainfall.
Natal
– 450 tons of cane and 64 tons of raw sugar (E.R.S.)/ha. 1400kg of Langfos for 3 crops (2 years cycle each) with top-dressing of nitrogen and potash fertilizers.
PRODUCT INFO & NUTRIENT BREAKDOWN
Naturally Rich in Phosphorus,
Packed with Trace Elements
Langfos is a slow-release, organic phosphate fertilizer designed to support healthy plant growth over the long term. Registered as a Group 2 Organic Fertilizer (Reg No. B4038), it is particularly effective in both acidic and alkaline soils, where it gradually releases phosphorus and enriches the soil with essential micronutrients. Finely milled and partially soluble in weak acids like citric acid, Langfos is ideal for broadcast application across a range of crops — without the risk of overuse.
This unique formulation includes valuable trace elements such as calcium, magnesium, sulphur, zinc, and iron, along with the ability to reduce aluminum toxicity in soils, especially in coastal regions like KwaZulu-Natal and the Eastern Cape. Whether applied in vineyards, orchards, or row crops, Langfos not only promotes strong root development and photosynthesis, but also enhances microbial life — even contributing to increased phosphate levels when consumed by earthworms.
Available in bulk, 50kg, 500kg, and 1-ton bags, Langfos offers flexibility for farms of all sizes. For best results, consult with one of our agents to tailor your application to soil analysis and crop type.
PRODUCT INFO AND ANALYSIS
Naturally Reactive,
Universally Effective
Langfos dissolves partially in week acids such as citric acid and when finely milled it is used as a phosphate fertilizer, especially in high and low Ph soils.
- Organic Registered No. B4038 Fertilizer Group 2 – Act 36 of 1947
- Available in bulk, 50kg bags, 500kg bags and 1 ton bags.
Benefits
As Langfos is not water soluble, it’s a slow release product which releases the phosphate to the plants over many years assisting the farmer to build up healthy lands. It enriches the soil with trace elements and stimulates root growth and helps with photosynthesis in all plants.
Analysis
| STANDARD ANALYSIS 5% P | % m / m | |
| Total Phosphorus | (P) | 8-10 |
| (Krumm/Wagner Method – slow release) | ||
| Calcium | (Ca) | 20.1 |
| Sulphur | (S) | 0.145 |
| Magnesium | (Mg) | 1.30 |
| Iron | (Fe) | 0.73 |
| mg / kg | ||
| Manganese | (Mn) | 9 |
| Copper | (Cu) | 3 |
| Zinc | (Zn) | 13 |
| Molybdenum | (Mo) | <10 |
| Boron | (B) | 0.8 |
| Fluoride | (F) | 0.76 |
General recommendations for usage
Langfos can be applied according to need of soil (P) analysis.
Langfos will never cause a problem if too much is applied. Recommendations can range from 100kg to 1500kg per hectare.
Consult one of our agents in this regard.
Langfos and ammonium sulphate nitrogen is a very good combination, which is further improved if mixed with any organic fertilizer.
Preparation of vinyards:
Langfos broadcast 700kg–1 ton per hectare
New plantations:
500g Langfos per hole
Existing vines:
200g Langfos under dropper per vine
Earthworms and Langfos
Very recently earthworms were fed Langfos along with other organic food. There was 20kg of Langfos fed to 8000 earthworms over a period of 8 weeks. The manure was analyzed and there was a significant increase in the phosphate content. The Bemlab analysis below shows the differences. Samples 1 and 2 were earthworm manure where Langfos was fed. This will result in when earthworms are present in soil and Langfos is administered, it will further enrich the soil and increase the P %.
Trace elements in Langfos
Almost all natural trace elements are present in Langfos and as Langfos is an organic phosphate, it is registered as such with the Department of Agriculture as a Fertilizer Group 2 Reg B4038.
Aluminum toxic soils
Langfos has the unique property as to when agricultural soils are contaminated with toxic aluminum, especially in KZN (coastal), North West and Eastern Cape (coastal areas), it restores the soil so that it releases more phosphorus for root development. In toxic aluminum soils chemical phosphates cannot fully work, but after Langfos is applied broadcast and chemical phosphate used to plant the two phosphates combine to form a tri-phosphate.
COMPANY & REGISTRATIONS :
• B4038 Gecko Fert (Pty) Ltd Registration 2027
• B5147 Eco Pellets Registration 2027
• Gecko Fert BBBEE Certificate
• Cape Chamber of Commerce & Industry Certificate
• Proudly South African Certificate 2014
• POPI compliant documentation
• POPIA Compliant PAIA Manual Gecko Fert
• Website Terms and Conditions Gecko Fert
• Geckofert PAIA Registration Certificate 2023
ANALYSIS & REPORTS :
• Mintek-Muller-Lab-Analysis-Certificate-1977
• Muller-Lab-Analysis-Certificate-2010
• Muller-Lab-Analysis-Certificate-2012
• Muller-Lab-Analysis-Certificate-2013
• Muller-Lab-Analysis-Certificate-2014
• Bemlab Langfos Earthworm Analysis
• Langfos Phosphate Micronutrient Analysis
• Technical Specification Langfos
• Langfos Analysis 2016 NR000253
ECOCERT CERTIFICATION
EU & NOP Standards
• Input Attestation EU – 2026
ALL THE INFO YOU NEED IN ONE PLACE
Downloads & Certifications
Access our official documentation, certifications, product analyses, and compliance records. Whether you’re looking for company registration details, fertilizer composition reports, or international organic certifications — everything you need to verify the quality, credibility, and compliance of Gecko Fert products is available for download below.
NUTRI-TECH ARTICLE
The Phosphate Equation
By Graeme Sait
The unparalleled, 100% price increase in DAP/MAP in just a few short months has generated shock waves throughout agriculture, as reality bites and growers begin to understand that peak oil means peak prices. Prices for urea, pesticides and diesel have also risen considerably but it is a special set of circumstances that is responsible for the massive blow-out in prices for the world’s largest selling fertilisers, DAP and MAP. Key contributors include a 400% increase in raw material costs combined with reduced manufacturing plants (linked to rationalisation) and huge demand due to the US ethanol boom. Energy price hikes have also contributed to the blow-out. The upside of this dramatic increase in production costs is that many growers are now forced to re-evaluate the efficiency and cost effectiveness of their phosphate fertilising. In doing so, many have realised that unstable, acid-treated phosphate, where up to 70% may be lost to lock-ups, was dubious value at $650 (AU) per tonne but it is an extremely poor investment at double that price. Let’s look more closely at the phosphate investment in crop production – let’s look at how this mineral works in the soil and in the plant, how we can increase the efficiency of phosphate fertilisers and how we can reduce costs without loss of production.
Proudly South African
Locally Mined. Nationally Trusted. Globally Respected.
At Gecko Fert, we take pride in being 100% South African — from our people and processes to our products and principles. Langfos is the only organic sedimentary phosphate mined and manufactured locally, supporting not only our country’s agricultural sector but also its economy, communities, and sustainability goals. By choosing Gecko Fert, you’re investing in homegrown innovation, job creation, and food security for generations to come.
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Gecko Fert
BBBEE
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HISTORICAL INFO AND DOCUMENTS
Our Legacy in the Soil
From 1923 to Today – A Rich History of Growth
Langfos holds a unique place in South African agricultural history as the only Organic Sedimentary Rock Phosphate ever mined locally. First extracted in 1923, it was widely used until 1994 — and many farmers still see its long-lasting benefits in their fields today. In 2010, Gecko Fert reopened the mine at Langebaanweg, proudly restoring this natural resource to its rightful place in the future of farming.
Explore our collection of historical documents, early advertisements like our Landbouweekblad feature from 1945, and archived material that tells the story of a product — and a legacy — built to last.
Advertisement: Landbouweekblad – 7 November 1945
PODCAST DOWNLOAD
The Phosphorus Puzzle: Why the World Can’t Get Enough
In a compelling podcast hosted by Michael Avery, a panel of agricultural and environmental experts unpack the growing global demand for phosphorus—a critical nutrient driving food security worldwide. Originally aired on 12 November 2013, this discussion remains as relevant as ever, shedding light on the challenges of sustainable phosphorus sourcing and the crucial role products like Langfos play in securing long-term soil health.
[Download the Podcast] and hear first-hand insights into the future of farming and food production.
Langfos Rock Phosphate
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Eco Pellets
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Committed to Healthier Soils, Stronger Harvests
At Gecko Fert, we’re driven by more than just fertilizer — we’re cultivating a better future. From our organic phosphate mine in Langebaanweg to our eco-friendly manufacturing processes, we are dedicated to delivering natural products that work with the earth, not against it. With Langfos and Eco Pellets, we’re helping farmers improve soil quality, crop yields, and sustainability — season after season.
Soil-Friendly Formulas
Boosts microbial activity and enhances soil fertility naturally.
Made for African Conditions
Formulated to thrive in our unique climate and soil types.
Proven Long-Term Impact
Langfos effects remain visible years after application.
Sustainable Mining & Rehabilitation
Environmentally responsible operations with active land rehabilitation.
Antibiotic-Free Manure Sources
Eco Pellets are safe, clean, and free of harmful residues.
Farmer-Approved
Trusted by growers across South Africa, Namibia, Mozambique, and Botswana.
Discover the Power of Langfos
Looking for a natural, effective way to boost soil health and crop performance? Visit our dedicated Langfos website to learn more about South Africa’s only Organic Sedimentary Rock Phosphate — trusted by farmers across the country.