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Your #1 Source for Organic & Biological Farm Supplies
Your #1 Source for Organic & Biological Farm Supplies

Soil Amendments

Mixed and single-source macro and micro-nutrients.
  • Original price $27.50 - Original price $27.50
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    Sea-90 Minerals & Trace Elements for Crops - 50 lb Bag

    SEA-90 sea mineral solids are 100% natural water soluble minerals listed by the USDA National Organic Program and Organic Materials Review Institut...

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    Original price $27.50 - Original price $27.50
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  • Original price $7.95 - Original price $7.95
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    Hi-Cal Lime Powder - 50 lb Bag

    This is a pulverized powder (calcium carbonate) - This high quality 100% pulverized limestone is high in calcium and very low in magnesium content....

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    Original price $7.95 - Original price $7.95
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    Original price $39.00 - Original price $39.00
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    Kmag or SulPoMag Granular (0-0-22+21S+11Mg) - 50 lb Bag

    Intrepid Trio brand is 100% natural Langbeinite, a unique mineral with three essential nutrients in every granule. Trio provides a long-lasting, re...

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    Original price $39.00 - Original price $39.00
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  • Original price $12.00 - Original price $12.00
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    Elemental Sulfur 90% - 10 lb Bag

    Elemental Sulfur90% - Pelletized sulfur is useful in lowering pH without potential aluminum sulfate toxicity.  Our elemental sulfur will have a lig...

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  • Original price $125.00 - Original price $125.00
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    Copper Sulfate Powder - 50 lb Bag

    COPPER SULFATE- Chemical Analysis, Copper (Cu) 25.2% min, Arsenic (Ar) 10 ppm max, Cadmium (Cd) 15 ppm max, Lead (Pb) 50 ppm Copper Sulfate is a va...

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    Original price $125.00 - Original price $125.00
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  • Original price $39.00 - Original price $39.00
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    CrabLife Flake 3-3-0 +19% Ca - 44 lb Bag

    By providing existing soil microbes with food and energy, CrabLife™ naturally and safely improves soil health by enhancing the beneficial microbial...

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    Original price $39.00 - Original price $39.00
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  • Original price $10.00 - Original price $10.00
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    Copper Sulfate Powder - 1 lb

    COPPER SULFATE- Chemical Analysis, Copper (Cu) 25.2% min, Arsenic (Ar) 10 ppm max, Cadmium (Cd) 15 ppm max, Lead (Pb) 50 ppm Copper Sulfate is a va...

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    Fish Bone Meal 40% Protein (4-14-0) - 50 lb Bag

    A marine-based alternative to traditional steamed bone meal and a great source of organic phosphorus and calcium (12%-17%). Derived from fresh cutt...

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    Original price $54.00 - Original price $54.00
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  • Original price $14.00 - Original price $14.00
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    Potassium Sulfate Granular (SOP) (0-0-50+S17%) - 10 lb Bag

    Potassium is essential for a vigorous root system, plant growth, disease resistance, as well as fruit and vegetable quality. SOP granular is a natu...

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    Zinc Sulfate Powder, Ag & Livestock, 1 lb Bag

    Zinc sulfate monohydrate powder, Guaranteed Analysis: Zinc(Zn) 35.5%, Water Soluble Zinc (Zn) 35.5%, Sulfur (S) 17%. Zinc sulfate powder can be app...

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    Zinc Sulfate Powder, Ag & Livestock- 50 lb Bag

    Zinc sulfate monohydrate powder, Guaranteed Analysis: Zinc(Zn) 35.5%, Water Soluble Zinc (Zn) 35.5%, Sulfur (S) 17%. Zinc sulfate powder can be app...

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    Humic DG - 40 lb Bag

    The Andersons brand, this easy flow micro-pelletized Humic acid is derived from a high quality 70% leonardite, containing 35% fulvic and 35% humic ...

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    Biogreaux Blackstrap Molasses (1-0-5) 1 Gallon

    Biogreaux Blackstrap Molasses is an all-natural organic fertilizer and potassium booster made from the byproduct of Louisiana sugarcane processing....

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  • Original price $310.00 - Original price $310.00
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    Ferti Nitro Plus Soluble Soy (13.62-0-0) - 50 lb Bag

    From Ferti-Organic - A water-soluble powder produced enzymatically, without animal by-products. A nontoxic, non-polluting and vegan plant nutrient....

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    Original price $310.00 - Original price $310.00
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    Solubor 20.5% Boron (Sodium Borate) - 5 lb Bag

    Solubor® is manufactured to combine the highest concentration of boron with the maximum possible dispersion and solubility in water. As such, it ha...

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    Original price $20.00 - Original price $20.00
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    Rock Phosphate Pelletized (0-3-0) - 50 lb Bag

    Ida-Gro brand pelletized (0-3-0) - 20% total phosphate, 3% available phosphate and 20% calcium. Biological activity speeds release in compost or in...

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    Original price $24.00 - Original price $24.00
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    Gypsum Ida-Gro Pelletized - 50 lb Bag

    Calcium sulfate improves the structure of heavy clay soils. An excellent source of calcium containing 32% calcium oxide. No effect on soil pH. Cont...

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    Brown's Fish Fertilizer (2-3-1) - 5 Gallons

    Produced in Western North Carolina. This product is made from fresh water trout. Brown's is a fish hydrolysate and is produced using a cold process...

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    Original price $67.00 - Original price $67.00
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    Grower’s Secret Nitrogen (14-0-0)- 50 lbs

    Provides a rich source of nitrogen for nitrogen loving plants. Use to help plants grow quickly, and to improve plant quality and appearance. Grower...

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    Original price $185.00 - Original price $185.00
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    Symphony Organic Fertilizer w/9% Ca (5-4-3) - 50 lb Bag

    Almost identical to Harmony but it comes from the USDA organic egg laying operation at the same NY farm that produces Harmony. What is in Harmony a...

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  • Original price $89.00 - Original price $89.00
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    Solubor 20.5% Boron (Sodium Borate) - 50 lb Bag

    Solubor® is manufactured to combine the highest concentration of boron with the maximum possible dispersion and solubility in water. As such, it ha...

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    Original price $89.00 - Original price $89.00
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    $89.00
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    Boron 10% Granular - 10 lb Bag

    Boron 10 % Cameron Chemicals Brand - Pelletized and derived from Sodium Calcium Borate, Non-Acid forming, Product of Chile. Side dress plants or b...

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    Brown's Fish Fertilizer (2-3-1) - 1 Gallon

    Produced in Western North Carolina. This product is made from fresh water trout. Brown's is a fish hydrolysate and is produced using a cold process...

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    Original price $18.50 - Original price $18.50
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    Manganese Sulfate Powder 31.5% - 1 lb Bag

    Manganese Sulfate with 18% sulfur., For soils deficient in Manganese (Mn), apply this fast-acting source of 32% Mn to the soil. Can be broadcast, s...

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    Original price $10.00 - Original price $10.00
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Looks like your order might be big enough to ship on a pallet!

We have great pallet rates with our partner carriers and, if you're east of the Mississippi, you likely qualify for flat rates up to 2400 lbs. We can ship any size order but for orders of 5000 lbs and up (or if the website is only quoting UPS rates) you'll want to call us 800-540-9181 for the best shipping rate. Thank you!