Skip to content
Your #1 Source for Organic & Biological Farm Supplies
Your #1 Source for Organic & Biological Farm Supplies

Potassium

Biological and mineral potassium sources for pre-plant and top/side dress K needs. Potassium is critical for key plant functions including regulating plant water status and CO2 uptake.

Similar Categories

  • Original price $52.00 - Original price $52.00
    Original price
    $52.00
    $52.00 - $52.00
    Current price $52.00

    Allganic Soluble Potassium Sulfate SOP (0-0-52+S18%) - 50 lb Bag

    Potassium Sulfate Allganic Brand Water Soluble SOP (0-0-52-Sulfur 18%) This is a soluble SOP for crop production. It is best to apply according to ...

    View full details
    Original price $52.00 - Original price $52.00
    Original price
    $52.00
    $52.00 - $52.00
    Current price $52.00
  • Original price $262.00 - Original price $262.00
    Original price
    $262.00
    $262.00 - $262.00
    Current price $262.00

    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...

    View full details
    Original price $262.00 - Original price $262.00
    Original price
    $262.00
    $262.00 - $262.00
    Current price $262.00
  • Original price $33.00 - Original price $33.00
    Original price
    $33.00
    $33.00 - $33.00
    Current price $33.00

    Potassium Sulfate Granular (SOP) (0-0-50+S17%) - 50 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...

    View full details
    Original price $33.00 - Original price $33.00
    Original price
    $33.00
    $33.00 - $33.00
    Current price $33.00
  • Original price $39.00 - Original price $39.00
    Original price
    $39.00
    $39.00 - $39.00
    Current price $39.00

    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...

    View full details
    Original price $39.00 - Original price $39.00
    Original price
    $39.00
    $39.00 - $39.00
    Current price $39.00
  • Original price $14.00 - Original price $14.00
    Original price
    $14.00
    $14.00 - $14.00
    Current price $14.00

    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...

    View full details
    Original price $14.00 - Original price $14.00
    Original price
    $14.00
    $14.00 - $14.00
    Current price $14.00
  • Original price $42.00 - Original price $42.00
    Original price
    $42.00
    $42.00 - $42.00
    Current price $42.00

    K*ASH - Sunflower Hull Ash (0-4-34)+micros - 50 lb Bag

    Enriches the soil and tempers acidity. Improves soil structure and microbial flora. Its high pH (~10) is beneficial for flowers and perennials when...

    View full details
    Original price $42.00 - Original price $42.00
    Original price
    $42.00
    $42.00 - $42.00
    Current price $42.00
  • Original price $52.50 - Original price $52.50
    Original price
    $52.50
    $52.50 - $52.50
    Current price $52.50

    BioLink® Potassium Fertilizer Liquid (0-0-6) - 2.5 Gallon

    Potassium Fertilizer Liquid (0-0-6) - From ORGANIC BIOLINK® Contains 6.0% soluble potash essential for a vigorous root system, improved plant growt...

    View full details
    Original price $52.50 - Original price $52.50
    Original price
    $52.50
    $52.50 - $52.50
    Current price $52.50
  • Allganic Soluble Potassium Sulfate SOP (0-0-52-Sulfur 18%) - 50 lb x 56 Bags

    Potassium Sulfate Allganic Brand Water Soluble SOP (0-0-52-Sulfur 18%) - This is a soluble SOP for crop production. Also available in a 50 lb Solub...

    View full details

Shipping Notice

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!