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SOIL AMENDMENTS

At Superior Soil Supplements, we provide agricultural soil amendments to meet any soil or crop requirement. Wherever your farm is located, Superior Soil Supplements will provide quick delivery, and we can arrange for spreading services at your request. The most commonly requested soil amendments are listed below.  Don’t see what you are looking for, call to see how we can help.

Call to speak with a representative:             (559) 584-9650

Gypsum

More properly called Calcium Sulfate, this naturally-occurring mineral adds supplemental calcium, which is vital to both plant nutrition and to the tilth of the soil.  Gypsum also helps to improve water penetration into the soil, and helps to move excess salts, such as sodium, magnesium and chlorides down below the root zone.  Superior Soil Supplements can provide you with all grades of gypsum, for both Organic and Conventional farming, in both broadcast and solution grades.

Product variety available in:

  • Bulk (Tons)
  • Super Sacks
  • 50 Lbs. Bags / Pallets
Gypsum with Jar
Lime & Jar

Lime & Dolomite

LIME ~ (calcium carbonate) and DOLOMITE (magnesium carbonate) may be required for soils with low pH and/or low magnesium levels, and are available for both Organic and Conventional farming, and in broadcast and solution grades.

Product variety available in:

  • Bulk (Tons)
  • Super Sacks
  • 50 Lbs. Bags / Pallets

Sulfur

SULFUR ~ is an important amendment for acidifying problem soil.  Soils with high pH essentially “lock up” nutrients in forms that are unavailable to plants.  Lowering the pH to 6.5 to 7.5 increases nutrient availability and created a more hospitable growing environment for most plants.  In addition to conventional soil sulfur, we offer Organic fast-acting Super Sulfur Plus, which is mined from naturally-occurring deposits.  This mined product contains elemental Sulfur,as well as thiosulfate and sulfate forms, as well as potassium and micronutrients, and is available in solution grade!

Product variety available in:

  • Bulk (Tons)
  • Super Sacks
SR90 Sulfur and Jar
Jar with green waste compost

Compost

COMPOST ~ is important to agricultural land, providing organic matter for improved water and nutrient retention.  Superior Soil Supplements has composted dairy manure, composted grape pomace, and OMRI certified greenwaste compost.  To save you time and money, we offer custom blends of compost, soil amendments and fertilizer to meet your specifications.  We also offer liquid Dynamic Humic Acid and dry Terra C Humate products for an extra boost of organic matter.

Product variety available in:

  • Bulk (Tons)
  • Super Sacks

Potash

POTASH ~ we offer potash (potassium) in both sulfate of potash and muriate of potash formulations, as well as solution grade and organic potash.

Product variety available in:

  • Bulk (Tons)
  • Super Sacks
  • 50 Lbs. Bags / Pallets
Bottle with SOP
Lime-Bar-Full

Product Inventory

Select a dropdown to see available options for each product. Note: Product sold in BULK can be purchased by tons. For more questions on any of our product, pricing, or don’t see what you are looking for, please call our office to see how we can help:  (559) 584-7695

ProductType
Bulk
50 Lbs. Bags
Pallets
Other
Active80 AG (Black Earth Humate)Organic

 

55.1 Lbs. Bags

✔

Super Sacks

Compost 

✔

 

 

 

Endomycorrizae 

 

20Lbs. Bags

✔

 

VermiculiteOrganic

✔

 

 

65 Cu. Ft. Bags

ProductType
Bulk
50 Lbs. Bags
Pallets
Other
Potassium Sulfate (S.O.P.) 0-0-50 

✔

✔

✔

✔

11-52-0 (Mono Amonium Phosphate) 

✔

✔

✔

 

15-15-15 

✔

✔

✔

 

16-16-16 

✔

✔

✔

 

21-0-0 (Amonium Sulfate) 

 

✔

✔

 

15.5-0-0 (Calcium Nitrate) 

 

✔

✔

 

Ferrous (Iron) Sulfate 

 

✔

✔

 

Fruit & Nut Paks 19-7-11 

 

 

 

Cases (250 per case)

K-Mag Fertilizer 0-0-21.5 

✔

 

 

 

Muriate of Potash 

 

 

 

Super Sacks

Prilled Zinc Sulfate 35% 

 

✔

✔

 

6-1-2 Fertilizer 

 

✔

✔

 

ProductType
Bulk
50 Lbs. Bags
Pallets
Other
90% GypsumBroadcast

✔

 

 

 

92% AG GypsumBroadcast/Prilled

 

✔

✔

 

97% Solution Gypsum (Diamond K)Solution Grade

✔

✔

✔

 

100% GypsumBroadcast

✔

 

 

 

ProductType
Bulk
50 Lbs. Bags
Pallets
Other
Dolomatic Limestone 

✔

 

 

 

Limestone 

✔

 

 

 

Prilled Limestone 

✔

✔

✔

 

ProductType
Bulk
50 Lbs. Bags
Pallets
Other
Micro-Sul 70(Cake)

✔

 

 

 

Organic Sulfur(Organic)

✔

 

 

✔

Soil Sulfur 

✔

 

 

 

SR-90(Organic)

✔

 

 

Super Sacks

Tiger 90(Organic)

 

✔

✔

 

Custom Blends Available

Looking for a custom blend for your field, contact us to see how we can help.

Don't Know What You Need?

Did you know that a pH test from your soil could be the biggest clue in identifying if your soil has a problem? A comprehensive soil analysis from a reputable lab could be the biggest clue to identifying imbalances in your crops. Water analysis can help determine your water’s irrigation quality which is essential for good crop/plant production. Testing your water can help determine your water’s alkalinity, pH levels and see if there is a high level of soluble salts; as a result, saving you money in the end. Contact us to see how we can help.

Organic Farmer?

Most our products are organic compliant. Click the link below and contact us to find out more about our Organic Certified Amendments and Fertilizers. 

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