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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 $23.25 - Original price $23.25
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    Current price $23.25

    Azomite Micronized Powder - 44 lb Bag

    This naturally mined, volcanic mineral has over 66 minerals and trace elements that are important for plant nutrition and growth. It improves deple...

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    Original price $23.25 - Original price $23.25
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    $23.25
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    Current price $23.25
  • Original price $63.00 - Original price $63.00
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    $63.00
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    Current price $63.00

    Thorvin Kelp - 50 lb Bag

    This is the best kelp on the market and it is certified organically grown. This Icelandic kelp is processed in a state of the art plant that is bui...

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    Original price $63.00 - Original price $63.00
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    $63.00
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    Current price $63.00
  • Original price $23.25 - Original price $23.25
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    $23.25
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    Current price $23.25

    Azomite Granular - 44 lb Bag

    This naturally mined, volcanic mineral has over 66 minerals and trace elements that are important for plant nutrition and growth. It improves deple...

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    Original price $23.25 - Original price $23.25
    Original price
    $23.25
    $23.25 - $23.25
    Current price $23.25
  • Original price $23.00 - Original price $23.00
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    $23.00
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    Current price $23.00

    Elemental Sulfur 90% - 50 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 $23.00 - Original price $23.00
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    Current price $23.00
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    Original price $19.50 - Original price $19.50
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    $19.50
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    Current price $19.50

    Magnesium Sulfate Epsom Salt - Technical Grade - 50 lb Bag

    Magnesium Sulfate Epsom Salt Technical Grade - Mg 9.8%, S 12.9%. Quick acting Mg & S fertilizer. Can be used for a foliar application. Can be m...

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    Original price $19.50 - Original price $19.50
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    Current price $19.50
    Sold out
  • Original price $55.00 - Original price $55.00
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    $55.00
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    Current price $55.00

    Nature's Kelp from Thorvin 50 lb

     Nature’s Kelp from Thorvin is a certified organic Ascophyllum Nodosum dried kelp that is a rich source of natural minerals which has been used wor...

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    Original price $55.00 - Original price $55.00
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  • Original price $249.00 - Original price $249.00
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    AgSil 16H Potassium Silicate Powder 52% SiO2 (0-0-32) 50 lb Bag

     AgSil helps plants to resist toxicity from phosphorous, manganese, aluminum and iron and increases tolerance to salt. AgSil also aids in resistanc...

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    Original price $249.00 - Original price $249.00
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    Current price $249.00
  • Original price $12.00 - Original price $12.00
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    $12.00
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    Current price $12.00

    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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    Original price $12.00 - Original price $12.00
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    $12.00
    $12.00 - $12.00
    Current price $12.00
  • Original price $12.00 - Original price $12.00
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    $12.00
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    Current price $12.00

    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 $12.00 - Original price $12.00
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    $12.00
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    Current price $12.00
  • Original price $73.00 - Original price $73.00
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    $73.00
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    BioLink® Cal Plus Liquid 6% - 2.5 Gallon

    From ORGANIC BIOLINK® this liquid Calcium is complexed with naturally fermented organic acids and is immediately available to plants. Calcium is es...

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    Original price $73.00 - Original price $73.00
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  • Original price $34.00 - Original price $34.00
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    Iron Sulfate Powder 20% - 50 lb Bag

    Essential Iron 20%. Ferrous (Iron) Sulfate Heptahydrate. A soluble product that can be broadcast, side banded or foliar sprayed. Guaranteed Analysi...

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    Original price $34.00 - Original price $34.00
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    Current price $34.00
  • Original price $27.50 - Original price $27.50
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    $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 $75.00 - Original price $75.00
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    $75.00
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    Manganese Sulfate Powder 32% (For Feed or Fertilizer) - 55 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 $75.00 - Original price $75.00
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  • Original price $27.00 - Original price $27.00
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    Greensand by Agrolift (0-0-1.4) - 50 lb Bag

    Greensand contains minerals and trace elements that improves the chemical, physical and biological conditions of the soil as well as the moisture a...

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    Original price $27.00 - Original price $27.00
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  • Original price $25.00 - Original price $25.00
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    Biomin® Liquid Calcium 5% - 1 Gallon

    Amino Acid Chelated Minerals contains 5% complexed chelated calcium derived from calcium amino acid complex. Biomin is designed for soil and foliar...

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    Original price $25.00 - Original price $25.00
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  • Original price $99.00 - Original price $99.00
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    $99.00
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    Current price $99.00

    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 $99.00 - Original price $99.00
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    $99.00
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    Current price $99.00
  • Original price $30.75 - Original price $30.75
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    $30.75
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    Current price $30.75

    Boron 10% Granular - 50 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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    Original price $30.75 - Original price $30.75
    Original price
    $30.75
    $30.75 - $30.75
    Current price $30.75
  • Original price $11.25 - Original price $11.25
    Original price
    $11.25
    $11.25 - $11.25
    Current price $11.25

    Azomite Granular - 10 lb Bag

    This naturally mined, volcanic mineral has over 66 minerals and trace elements that are important for plant nutrition and growth. It improves deple...

    View full details
    Original price $11.25 - Original price $11.25
    Original price
    $11.25
    $11.25 - $11.25
    Current price $11.25
  • Sold out
    Original price $26.00 - Original price $26.00
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    Biomin® Booster 126 Amino Acid Chelated Minerals - Gallon

    A mixture of the amino acid encapsulated micronutrients magnesium, boron, copper, iron, manganese, and zinc. Created using an encapsulation of thes...

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    Original price $26.00 - Original price $26.00
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  • Original price $20.00 - Original price $20.00
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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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  • 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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    Current price $89.00
  • Original price $85.00 - Original price $85.00
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    $85.00
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    Current price $85.00

    Copper Oxide 12% Granular - 50 lb Bag

    This Tiger brand micronutrient is the regular grade – 260 SGN Prill size. 72% S & 12% Cu. Derived from Copper Oxide Apply according to your so...

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    Original price $85.00 - Original price $85.00
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    $85.00
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    Current price $85.00
  • Original price $50.50 - Original price $50.50
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    Zinc Oxide 18% Granular - 50 lb Bag

    Tiger Micronutrient brand, this Zinc is the Regular Grade – 260 SGN Prill size. 65% S & 18% Zn. Derived from Zinc Oxide.  Apply according to yo...

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    Original price $50.50 - Original price $50.50
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  • Original price $78.00 - Original price $78.00
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    $78.00
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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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    Original price $78.00 - Original price $78.00
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    $78.00
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    Current price $78.00