You’re likely no stranger to humic acid. The challenge isn’t finding a product—it’s finding one that’s potent enough to make a real difference and convenient enough to actually use. Many are diluted fillers. Others are messy powders that clog your sprayers.
Siro-60 Humic Acid is different. We started with a simple goal: create a high-purity, truly soluble formula that delivers the foundational benefits of humic acid, plus a meaningful boost of potassium, in a form that works with your equipment—not against it.
At its core, it’s 60% pure humic acid fortified with 10% potassium (K₂O), available in both easy-to-spread flakes and fine, instantly soluble powder. It’s the closest thing to a multitool for soil and plant health.
Breaking Down the “Why”: 60% Purity Matters
Not all “humic substances” are created equal. A product claiming 60% humic acid is fundamentally different from one claiming 60% humic substances (which can include less-active fulvic acid). Here’s what that high, pure concentration means on your farm:
-
It’s a Soil Sponge and Glue: Humic acid binds to soil particles, creating the soft, crumbly structure roots love. More importantly, it has a massive negative charge (high CEC). Think of it as a magnet in your soil that grabs and holds onto positively charged nutrients (like ammonium, calcium, magnesium, and potassium), preventing them from leaching away and offering them to plant roots on demand.
-
It Wakes Up the Soil Food Web: That 60% organic carbon is a feast for beneficial bacteria and fungi. A more active microbial population means better nutrient cycling, natural disease suppression, and the creation of soil glue (glomalin) that holds everything together.
The Potassium Bonus: More Than Just a Number
The 10% K₂O isn’t an afterthought—it’s strategic synergy. Potassium is crucial for water regulation, sugar transport, and stress tolerance. By delivering it chelated within the humic acid matrix, you get a double win:
-
The humic acid improves the root environment and nutrient-holding capacity.
-
The potassium is supplied in a form that’s readily available and used more efficiently by the plant.
It’s a gentle, sustained feed that supports everything from drought resilience to fruit quality.
Why an Alkaline pH is Your Friend for Acidic Soils
With a pH of 9-11, Siro-60 does more than just feed—it helps correct acidic soil conditions. Over time, many fertilizers (especially ammonium-based ones) acidify the soil, locking up nutrients. Applying Siro-60 is like adding a gentle, long-acting lime. It neutralizes acidity, which in turn unlocks phosphorus and micronutrients that were previously stuck, making your entire fertility program work better.
Choosing Your Form: Flakes vs. Powder
We offer two forms because farming isn’t one-size-fits-all.
-
Go with FLAKES (2-5mm) if you: Want to broadcast and incorporate it into the soil before planting as a base amendment. It’s perfect for building long-term soil structure and is less dusty to handle.
-
Go with POWDER (80-100 mesh) if you: Use fertigation, drip systems, or want to apply it as a foliar spray. It dissolves completely in water in minutes, leaving no residue to clog your filters or nozzles.
How to Use It: Simple, Flexible Applications
🧱 For a Season-Long Foundation (Soil Application)
-
At Planting: Mix 8-12 kg per acre into the topsoil during bed preparation or planting.
-
As Top Dress: Side-dress 5-8 kg per acre during peak vegetative growth for crops like corn or tomatoes.
💧 Through the Drip Line (Powder Form)
-
Rate: 3-5 kg dissolved per acre, every 3-4 weeks during the growing season.
-
Tip: This is an incredibly efficient way to keep humic acid active in the root zone all season, enhancing everything else you put through the line.
🍃 As a Quick Leaf Boost (Powder Form, Foliar Spray)
-
Mix: 2-3 grams per liter of water.
-
When: During times of stress (transplant, heat) or at key growth stages. Spray in the cool of the day.
What crops love it? Honestly, almost everything. You’ll see dramatic responses in high-value vegetables, fruit trees, and field crops grown on tired, sandy, or compacted soils.
Real Questions from Growers
“How is this different from the cheaper humate I can buy?”
Cheaper products are often low-grade lignite or leonardite with low solubility and 10-20% humic substances. Ours is a refined, concentrated extract with a guaranteed 60% humic acid and near-total solubility. You use less, it works faster, and it won’t clog your equipment. It’s the difference between raw ore and refined fuel.
“Is it really organic?”
Yes. It’s mined from ancient, premium leonardite deposits—a natural, fossilized organic material. It’s widely accepted in organic programs, but as always, check with your specific certifier.
“When will I see a difference?”
In the plant, you might see improved greening and vigor within 1-2 weeks, especially with foliar or fertigation use. The real payoff—better soil structure, water retention, and yield consistency—builds over the season and improves year after year.
“Can I mix it with…?”
Generally, yes—with most liquid fertilizers and many crop protection products. However, because of its high pH, avoid mixing it with strongly acidic concentrates (like some phosphoric acids) without first doing a small jar compatibility test.
Built by a Leader in Soil Health
Siro-60 is manufactured by Shanxi Jinfeng Biotechnology, a top global producer of humic substances. We don’t just sell a product; we understand the soil system. This formula is the result of working with growers in over 30 countries to solve real problems of nutrient efficiency, soil degradation, and environmental stress.
It’s for the grower who is done treating symptoms and is ready to invest in the long-term health and productivity of their land.
Stop just fertilizing your crops. Start actively rebuilding your soil. Try Siro-60.
