Sodium-Free Potassium Humate
Sodium-Free Potassium Humate
65-70% potassium humate water solubility
potassium humate 1kg bags
potassium humate 25kg bag
1kg + 25kg potassium humate bags

Super Potassium Humate Flakes / Powder Overview

ISO, CERES EU/NOP & EU REACH-compliant Potassium Humate (65-70% Humic Acid) features large molecular weight for superior water-locking (ideal for sandy/heavy clay soils).

Fully water-soluble, it activates beneficial soil microbes, boosts root vigor and cation exchange capacity, and enhances drought/salinity/cold/heat resistance.

Designed for standalone application (not compatible with fertilizers/pesticides), it’s perfect for organic farming, hydroponics, seed treatment, orchards and high-performance sustainable agriculture.

* Note: Need a potassium humate compatible with fertilizers/pesticides? See our complementary product – Mineral source humic fulvic fertilizer (formulated for standard agri-input compatibility). 

Super Potassium Humate Flakes / Powder Technical Details

 AppearanceBlack Flakes / Powder
 Product codeJFHA-KHA-1-F/P
 Water Solubility100%
 Potassium(K₂O dry basis)10.0%-12.0% min
 Humic Acid(dry basis)* 1/265.0-70.0% min
 Fulvic Acid(dry basis)* 12.0% min
 Moisture15.0% max
 Particle size1-2 mm
 Fineness80-100 mesh
 pH9-10

* 1 is the test methods,HGT5334-2018 / ISO 19822 / HPTA / AAPFCO / IHSS Analysis method
* 2 is another test method, CDFA / Colorimetric method

Recommended Applications

Application Scope

Agricultural Crops

Field crops such as wheat, corn, rice, cotton, and oilseeds, soybeans, sugar beet, barley, and so on.

Vegetables

Open-field and greenhouse vegetables including tomatoes, cucumbers, peppers, lettuce, and broccoli.

Fruit Trees

Pome fruits (apple, pear), stone fruits (peach, cherry), citrus, grapes, and berries, Tropical & Subtropical Fruits.

* Other Scenarios: Hydroponics, substrate cultivation, lawn & landscape greening, seed treatment, nursery production, and flower farming.

Application Methods

Application MethodKey OperationsSuitable ScenariosAdvantages
Soil Incorporation (Base Fertilizer)Spread uniformly, plow 10-20 cm deep to mix with soil.Field crops, fruit trees, vegetables (pre-sowing/transplanting)Long-term soil improvement, enhances water/nutrient retention (leveraging large molecular weight advantage)
Ditching/Hole TopdressingDig trenches/holes near root zones (avoid direct root contact), apply and cover soil.Fruit trees, cash crops (growth stage)Reduces nutrient loss, targets root absorption
Drip Irrigation/DrenchingDissolve in water (follow dilution ratio), apply via drip system or root drenching.Greenhouses, water-saving agriculture, saline-alkaline/sandy soilsFast absorption, improves water-use efficiency
Foliar SprayingPrepare dilute solution, spray evenly on leaf surfaces (focus on young foliage).Critical stages (blooming, fruit enlargement, stress periods)Rapid stress relief, boosts photosynthesis
Seed Treatment (Soaking/Coating)Soak seeds in 0.1-0.5% solution for 6-12 hours, or coat with powder.All crops (seedling stage)Improves germination rate, strengthens seedling vigor

Recommended Dosage by Crop Type

Crop/ScenarioSoil TypeDosage (Acre/Ha)Application Timing
Wheat/Corn/Rice (Base)Loam/Sandy Loam15-25 kg / 37.5-62.5 kgPre-sowing/transplanting
Wheat/Corn/Rice (Base)Saline-Alkaline/Sandy25-30 kg / 62.5-75 kg+25% dosage for water-locking
Cotton/Soybean (Topdress)Arid/Semi-Arid1.0-1.5 kg / 2.5-3.75 kgBlooming-podding stage (1-2x)
Fruits (Apple/Grape)All Soils30-40 kg/acre (base); 1.0-1.2 kg/ha (topdress)Dormant period; fruit enlargement
Vegetables (Tomato/Potato)Greenhouse/Field15-20 kg/acre (base); 0.2-1.0 kg/acre (topdress)Transplanting; fruiting/tuber initiation
Organic FarmingAll Soils25-40 kg/acre (base); 1.0-1.5 kg/acre (topdress)Comply with CERES EU/NOP standards
Drought/Saline-AlkalineDegraded Soils+20-30% vs. standardSplit application (autumn + spring)

Mixing Steps

  • Half-filled water
  • Add liquid humic acid
  • Add other fertilizers/pesticides
  • Fill water and stir

COMPATIBILITY TEST REQUIRED BEFORE BLENDING

  1. Conduct small-scale trial at actual dilution ratio.
  2. Stand 10-15 mins; check for flocculation/precipitation.
  3. Blend in full scale only if no anomalies—avoid operational issues.

STIR CAUTION

Blend → stir → stand 30 mins → stir again.
Avoid stratification & reduced efficacy.

Packaging & Storage

We offer a range of standard packaging solutions: 1kg, 5kg, 10kg, 20kg, 25kg bags,and 1ton jumbo bags..Custom packaging services are also available. Our team will provide tailored recommendations based on your specific requirements to ensure proper storage and transportation, maintaining product integrity throughout the process.

1kg bag

10kg 20kg 25kg bag​

jumbo ton bag

Certifications & Compliance

  • CERES (Confirmationfor Materials Used in Organic Agriculture)
  • REACH (Green chemical innovation, permitted in the EU)
  • ISO9001 / ISO14001 / ISO22000
  • Heavy Metal Test Report from ISO certified lab
Get latest documents here

Safety Data Sheet / Technical Data Sheet

  • MSDS (Super Potassium Humate Flakes / Powder material safety data sheet)
  • TDS (Super Potassium Humate Flakes / Powder material safety data sheet)
Get latest documents here

Successful Cases

  • Application Details: Foliar spray + drip irrigation with Super Potassium Humate during the whole growth period .
  • Key Results: Yield increased by 35%, soluble sugar content by 30%, and sugar-acid ratio by 41%. Root length increased by 118% at the seedling stage, and phosphorus absorption in fruits increased by 45%.
  • Core Value: Enhanced nutrient uptake efficiency in sandy soil, leveraging the product’s water-retention and chelation properties.
  • Source: Chinese Society of Agricultural Science Journals
  • Application Details: 6% potassium humate foliar spray combined with 100 mg/L proline during the growth period .
  • Key Results: Significantly reduced salt stress damage, increased grain protein content, and achieved the highest yield among all treatments.
  • Core Value: Enhanced crop salt tolerance, verifying the product’s effectiveness in degraded soil remediation.
  • Source: Journal of Soil Sciences and Agricultural Engineering
  • Location: Gaotang County, Liaocheng City, Shandong Province (concentrated saline-alkaline soil area)
  • Crop: Winter Wheat
  • Application Scheme: Apply high-purity potassium humate (65-70% humic acid) as base fertilizer, supplemented with the same type of product for topdressing. Uniformly spread before sowing, plow 15-20 cm deep for soil mixing; apply via drip irrigation during the wheat regreening stage for topdressing.
  • Core Results: Broke the “low-yield curse” of saline-alkaline soil—wheat yield reached 746 kg per mu (≈11.2 tons/ha), an increase of 100 kg per mu compared to traditional fertilization. The wheat growth cycle returned to normal, with robust plants and plump ears, effectively alleviating the “early maturity and low yield” caused by saline-alkaline stress.
  • Core Value: Leveraging the acid-adjusting and alkali-inhibiting properties of high humic acid content, it improves soil structure, enhances water and nutrient retention capacity, and strengthens wheat stress resistance—achieving a win-win for saline-alkaline soil remediation and high crop yield.
  • Source: Field Report by Sohu.com
  • Location: Yanzike Ecological Tea Garden, Wuyishan City, Fujian Province (sandy loam soil with low organic matter and poor water/nutrient retention)
  • Crop: Wuyi Rock Tea
  • Application Scheme: Apply 25-30 kg per mu of high-purity potassium humate mixed with organic materials as base fertilizer, plow deeply for uniform mixing; conduct drip irrigation topdressing every 2 months during the growing period, 1.0-1.2 kg per mu each time.
  • Core Results: Soil compaction was significantly improved, soil looseness increased, and the number of tea tree capillary roots increased by over 40%. Tea quality was greatly enhanced—amino acid content increased by more than 30%, tea polyphenols by 20%, resulting in rich aroma and mellow taste, meeting organic tea standards.
  • Core Value: Utilizes the advantage of large-molecular-weight potassium humate in constructing soil aggregate structure, improves water and nutrient retention of sandy loam soil, and activates beneficial soil microorganisms—providing a healthy soil environment for organic tea cultivation.
  • Source: Report by NetEase News “China Tour of Agricultural University Humic Acid Quality”, Supporting Research on Tea Quality by Chengdu Institute of Biology, Chinese Academy of Sciences
  • Location: Protected Agriculture Park, Xinxiang City, Henan Province (continuous cropping greenhouse plots)
  • Crop: Pepper
  • Application Scheme: Foliar spraying during the growing period—dilute high-purity potassium humate 10,000 times with water, spray evenly on both sides of leaves, once every 15 days for 3 consecutive applications.
  • Core Results: Pepper plants grew robustly, plant height increased by 12-15%, and fruit setting rate by 18%. Soluble sugar content of fruits increased significantly, nitrate content decreased by over 35% with better quality; meanwhile, pepper resistance to diseases under high humidity in greenhouses was enhanced.
  • Core Value: Relies on the biostimulant effect of high-activity humic acid to activate the pepper’s own enzyme system, promote nutrient absorption, and reduce pollutant accumulation—adapting to the needs of green production of protected vegetables.
  • Source: Research Paper on China Humic Acid Network
  • Location: Lakeside of Central Yunnan, Yuxi City, Yunnan Province (sandy soil with weak water and nutrient retention capacity)
  • Crop: Protected Tomato
  • Application Scheme: Apply 30 kg per mu of high-purity potassium humate as base fertilizer, mixed with a small amount of organic fertilizer and plowed 20 cm deep; adopt a combined method of “drip irrigation topdressing + foliar spraying” during the growing period—1.0 kg per mu each time via drip irrigation, once every 10 days; spray 800-fold diluted solution twice during the fruit enlargement stage.
  • Core Results: Soil water retention capacity of sandy soil increased by 70%, effectively alleviating the problem of “water and nutrient leakage”. Tomato roots developed, root length increased by 118%, and yield increased by 35%. Soluble sugar content of fruits increased by 30%, sugar-acid ratio optimized by 41%, with significantly improved taste and marketability.
  • Core Value: Highlights the super water-locking advantage of large-molecular-weight potassium humate, specifically addressing the pain points of sandy soil, while enhancing tomato resistance to drought and nutrient loss—realizing high-yield and high-quality cultivation in sandy soil.
  • Source: Agricultural Technology Practice Sharing on Douyin Platform

Super Potassium Humate Flakes / Powder FAQ

Answer: No adverse side effects occur with proper dosage. Key notes for safe long-term use:
  1. It promotes beneficial soil microbial activity and improves soil structure over time, without causing compaction or nutrient imbalance.
  2. Avoid excessive application—overdosing may lead to overly vigorous root growth but slower above-ground plant development.
  3. For saline-alkaline or heavy-metal contaminated soils, combine with soil testing and apply in split doses to prevent potential heavy-metal accumulation.
  4. Follow recommended dosage ranges (base + topdressing) for sustained soil and crop health.
  • Flakes: Slower dissolution (10-15 mins stirring or overnight soaking for large-scale use), cost-effective, suitable for base application/soil incorporation.
  • Powder: Instant dissolution (5 mins), convenient for drip irrigation/foliar spraying. Choose based on application method: flakes for base fertilization; powder for topdressing (drip/foliar) or time-sensitive scenarios.
No. This product is not compatible with fertilizers (NPK, calcium/magnesium-based) or pesticides. Maintain a ≥72-hour interval between application and other agri-inputs. For blending needs, use our complementary product: Mineral source humic fulvic fertilizer (formulated for compatibility).
  1. Saline-alkaline soil: Increase dosage by 20-30% (base + topdressing) to enhance acid-adjusting and alkali-inhibiting effects;
  2. Sandy soil: Increase by 15-25% to maximize water-locking capacity;
  3. Clay soil: Reduce by 10-15% (avoids excessive moisture retention);
  4. Fertile soil: Reduce by 10-20% to prevent nutrient leaching.
  1. Soil improvement effects (loosening, water retention): Visible in 2-4 weeks (e.g., saline-alkaline soil EC value decreases by 15-20%);
  2. Crop growth effects (root development, vigor): 1-2 weeks for foliar spray/drip irrigation;
  3. Yield and quality improvement: Manifested in critical stages (flowering, fruit enlargement) or at harvest (yield +11.5-35%, sugar content +7-30%).
Yes. It fully complies with organic agricultural standards, with key certifications:
  • CERES EU/NOP (organic input certification);
  • ISO Quality Management System Certification;
  • EU REACH Compliance. It can be directly used in organic crop cultivation without violating certification requirements.
  1. Foliar spraying: Dilute 1:500-800 (w/v) with clean water (pH 6.0-7.5), spray on both leaf sides in early morning or late afternoon (avoid direct sunlight); 
  2. Drip irrigation: Dilute 1:200-300 (w/v), stir thoroughly until fully dissolved, filter with 120-150 mesh screen to prevent nozzle clogging;
  3. Key note: Flakes need pre-soaking (10-15 mins) before dilution.
Storage conditions: Keep in a dry, cool (15-25℃), well-ventilated area; avoid moisture, direct sunlight, and contact with strong acids/alkalis. Shelf life: 24 months in original sealed packaging. Open packages should be used within 3 months and resealed tightly after each use.
  1.  Higher humic acid content (65-70% vs. 50-60% for ordinary products);
  2.  Large molecular weight (2-3x stronger water-locking and soil improvement effects);
  3.  Strict organic certifications (CERES EU/NOP, REACH) for global market access;
  4.  Proven results (11.5-35% yield increase in domestic field trials, applicable to problematic soils like saline-alkaline/sandy soil).
  1. Avoid direct contact with crop roots (dig trenches/holes 15-20 cm away during topdressing) to prevent root burn;
  2. Wear gloves and a mask when operating, rinse with water immediately if it comes into contact with skin/eyes;
  3. Keep away from children and pets;
  4. Do not mix with strong acidic/alkaline substances (e.g., concentrated sulfuric acid-based fertilizers) to avoid flocculation.

Related Products

Potassium Humate (60% humic acid, 10% K2O)​
Sodium Humate Big Shiny Flakes​
Enzymolysis Green Seaweed Extract Powder Fertilizer​
Compound Amino Acid Powder Fertilizer
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HUMIC-ACID-POWDER-2048x1536
insoluble humic acid crystal
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insoluble humic acid 1ton bag

Insoluble Humic Acid Product Overview

Insoluble Humic acid is formed by microbial degradation of the dead biological substances. Its specific properties and structure depending on a given sample source from water or soil to extract the specific conditions.Products we have are humic acid powder, granular humic acid and humic acid crystal.

Humus in soils and sediments can be divided into three main parts: humic acid (HA), fulvic acid (FA) and humin (HM). HA is soluble in alkali solution, but not soluble in water and acid, FA is soluble in alkali, soluble in water and acid; the HM is neither soluble in alkali, nor soluble in water and acids.

Insoluble Humic Acid Technical Details

 AppearanceBlack Powder / Granule / Crystal
 Product codeJFHA-HA-1-P/G/CJFHA-HA-2-P/G/C
 Organic Matter (dry basis)85.0% min80.0% min
 C.E.C≥250meq / 100g≥200meq / 100g
 Free Humic Acid (dry basis) 160.0% min50.0% min
 Moisture25.0% max
 Particle size2-4mm / 2-6mm
 Fineness80-100 mesh
 Granule Radial Load12N
 pH4-6

* 1 Test Methods,GB/T 11957-2001 / ISO 19822 / HPTA / AAPFCO / IHSS Analysis method

Recommended Applications for Insoluble Humic Acid

Application Scope

Agricultural Crops

Field crops such as wheat, corn, rice, cotton, and oilseeds, soybeans, sugar beet, barley, and so on.

Vegetables

Open-field and greenhouse vegetables including tomatoes, cucumbers, peppers, lettuce, and broccoli.

Fruit Trees

Pome fruits (apple, pear), stone fruits (peach, cherry), citrus, grapes, and berries, Tropical & Subtropical Fruits.

* Other Scenarios:  substrate cultivation, lawn & landscape greening, nursery production, and flower farming.

I. Core Application Scenarios & Dosage

1. Soil Improvement (Primary)

Suitable for: Sandy/barren soil, heavy clay, saline-alkaline soil, continuous cropping obstacle soil.
Method: Basal application (before plowing), mixed with organic/compound fertilizer for better effect.
Soil Type
Powder Dosage (kg/hectare)
Granule Dosage (kg/hectare)
Frequency
Sandy/Barren
750-1,200
1,200-1,800
1-2 times/year (Spring/Autumn)
Heavy Clay/Saline-Alkaline
1,200-1,800
1,800-2,250
2 times/year (Deep + Shallow plowing)
Ordinary Farmland/Orchard
450-750
750-1,200
1 time/year (Base fertilizer)

2. Crop Base Fertilizer

Suitable for: Field crops, fruit trees, vegetables, medicinal herbs, etc.
Methods: Field crops – 450-750kg/hectare powder + compound fertilizer (basal); Fruit trees/vegetables – 50-100g granules per planting hole + organic fertilizer; Perennial crops – 1,200-1,800kg/hectare granules (autumn post-harvest).

3. Targeted Scenarios

  • Seedling substrate: Add 5%-10% (volume) powder to improve germination rate and seedling vigor.
  • Saline-alkaline/degraded soil: 1,800-2,250kg/hectare granules + 750kg/hectare gypsum (saline-alkaline); 2,250-3,000kg/hectare (mine reclamation/wasteland).

II. Powder vs. Granules Selection

Feature
Powder
Granules
Recommended Clients
Convenience
Needs mixing; high uniform requirement
Direct application; mechanized-friendly
Smallholders (powder); large mechanized farms (granules)
Efficacy/Validity
Faster onset (1-2 weeks)
Longer validity (3-6 months)
Short-cycle crops (powder); long-cycle crops (granules)
Transport/Storage
Dusty; moisture-proof packaging needed
Dust-free; low loss
Domestic short-distance (either); international trade (granules)
Cost
Lower unit price
Higher cost but labor-saving
Cost-sensitive (powder); efficiency-focused (granules)
Trade script: “Powder is cost-effective for small-scale farming; granules suit large mechanized plantations and long-distance shipping (dust-free, easy to apply).”

III. Key Usage Notes

  1. No foliar spray (insoluble, causes leaf burn/clogged sprayers; soil application only).
  2. Irrigate after application to avoid soil compaction.
  3. Not a fertilizer substitute; use with NPK/compound/organic fertilizers.
  4. Suitable for pH 5.5-8.5; adjust acidic soil (pH<5.5) with lime first.
  5. Seal and keep moisture-proof; avoid mixing with acids; crush clumped granules for reuse.

Packaging & Storage

We offer a range of standard packaging solutions: 20kg, 25kg bags,and 1ton jumbo bags.Custom packaging services are also available. Our team will provide tailored recommendations based on your specific requirements to ensure proper storage and transportation, maintaining product integrity throughout the process.

20kg 25kg bag

Jumbo ton bag

Certifications & Compliance

  • CERES (Confirmationfor Materials Used in Organic Agriculture)
  • REACH (Green chemical innovation, permitted in the EU)
  • ISO9001 / ISO14001 / ISO22000
  • Heavy Metal Test Report from ISO certified lab
Get latest documents here

Safety Data Sheet / Technical Data Sheet

  • MSDS (Insoluble humic acid material safety data sheet)
  • TDS (Insoluble humic acid material safety data sheet)
Get latest documents here

Successful Cases

1. Core Successful Cases

Case 1: Saline-Alkali Soil Remediation (Kezuohouqi, Inner Mongolia, China)
Product: Water-insoluble granular humic acid amendment | Application: 60 hectares, 150-250 kg/hectare (broadcast & rotary till mixed) | Results: Rice yield increased 108.7%-118% (3,027→6,317-6,599 kg/ha); soil pH dropped from 9.5+ to 7.5-8.0; 30% lower remediation cost.
Case 2: Soda Saline-Alkali Soil Transformation (Heilongjiang/Jilin, China)
Product: Lignite-based water-insoluble humic acid conditioner | Application: 1,800-2,250 kg/hectare | Results: Zhaoyuan (Heilongjiang): rice yield 323% increase (915→2,959 kg/ha); Da’an (Jilin): 3,922% increase (59→2,314 kg/ha); long-term effect (3-5 years).
Case 3: Grape Orchard Soil Enhancement (Zhejiang, China)
Product: Water-insoluble humic acid powder (60% content) | Application: 450 kg/hectare (autumn post-harvest, mixed with organic fertilizer 1:3) | Results: Soil pH 5.78→6.55; water-holding capacity +20%; grape yield +18% (18,600→22,000 kg/ha); sugar content 16%→19%.
Case 4: Ginger & Garlic Yield Improvement (Shandong, China)
Product: Water-insoluble humic acid granules (65% content + microbial inoculant) | Application: Ginger 1,500 kg/ha (base fertilizer); Garlic 1,200 kg/ha (pre-planting) | Results: Ginger yield +40% (45,000→63,000 kg/ha); garlic yield +25% (30,000→37,500 kg/ha); root rot/blight reduced 40%-60%.
Case 5: Tobacco Quality & Profit Enhancement (Yunnan, China)
Product: Water-insoluble humic acid powder + NPK blend | Application: 750 kg/ha humic acid + 300 kg/ha NPK (base fertilizer) | Results: Tobacco yield +20.8% (1,880→2,250 kg/ha); profit +43.6% ($4,268→$6,127/ha); high-grade leaves 52%→67%.
Case 6: Heavy Metal-Contaminated Soil Remediation (China)
Product: Modified water-insoluble humic acid powder | Application: 2,250-3,000 kg/ha (incorporated 20cm deep) | Results: Wheat grain cadmium content -81.77% (0.35→0.064 mg/kg, meets food safety); soil available cadmium -65%; yield +10-15%.

2. Core Implementation Tips

  • Soil application only; no foliar spray (insoluble in water).
  • Irrigate thoroughly after application (moisten 20cm soil depth) to activate binding.
  • Mix with organic fertilizer (1:3) for best effect; replace 20-30% chemical fertilizer.
  • Optimal timing: early spring/autumn; apply as base fertilizer for annual crops.

Insoluble Humic Acid FAQ

Core functions include improving soil structure, enhancing water and fertilizer retention, slow nutrient release, regulating soil pH, and remediating saline-alkali or heavy metal-contaminated soils. It is mainly used as a soil amendment and base fertilizer.
No. Insoluble humic acid cannot dissolve in water; foliar spraying will cause leaf burn and clog sprayers. It is only suitable for soil application.
  • Powder: Cost-effective, suitable for smallholder farmers (manual planting) and short-cycle crops (e.g., vegetables, wheat) due to faster onset (1-2 weeks).
  • Granules: Dust-free, easy for mechanized operation, suitable for large-scale farms, long-cycle crops (e.g., fruit trees, medicinal herbs) and long-distance transportation (longer validity: 3-6 months).
It is highly effective for sandy/barren soil, heavy clay soil, saline-alkali soil (including soda saline-alkali soil), continuous cropping obstacle soil, and heavy metal-contaminated soil.
  • Storage conditions: Keep in a dry, well-ventilated warehouse; avoid moisture, direct sunlight, and contact with strong acids/alkalis. Seal the package tightly after opening to prevent caking.
  • Shelf life: 2-3 years for unopened packages (stored as required); use opened products within 6 months for best effectiveness.
  • Note: Mild caking does not affect product performance—crush it before use.
Yes. Irrigate thoroughly after application (moisten soil to 20cm depth) to activate the binding between humic acid and soil particles, avoiding soil compaction.
No. It cannot replace chemical fertilizers or organic fertilizers. It should be used with NPK compound fertilizers or organic fertilizers (mix with organic fertilizers at 1:3 for best effect) to improve fertilizer use efficiency and can replace 20-30% of chemical fertilizers.
  • Powder: Faster onset, visible effects (e.g., improved seedling vigor, soil looseness) in 1-2 weeks;
  • Granules: Slow release, long-term validity (3-6 months), obvious yield increase effects in 1-2 growing seasons.
Yes. Modified insoluble humic acid can effectively immobilize heavy metals (e.g., cadmium). For cadmium-contaminated farmland, it can reduce wheat grain cadmium content by 81.77% and soil available cadmium by 65%, meeting food safety standards.
The optimal time is early spring or autumn. For annual crops, apply as base fertilizer before planting; for perennial crops (e.g., fruit trees), apply after autumn harvest (around the drip line of the crown).

Related Products

Potassium Humate (60% humic acid, 10% K2O)​
Sodium Humate Big Shiny Flakes​
Enzymolysis Green Seaweed Extract Powder Fertilizer​
Compound Amino Acid Powder Fertilizer

Insoluble Humic Acid Powder

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