Actually, soils get sulfur from three sources: airborne particles, the weathering of minerals in soils, and microbial activity. Sulfur conversion by microbes happens in soil containing large amounts of decomposing organic materials like green manures, animal wastes (including urine), insects, worms, and dead microbes. Grass clippings contain atmospheric sulfur and should also be added back to the soil. Some soil sulfur occurs naturally from the weathering process of minerals. 


Call Today for delivery pricing.

925-822-5364

925-822-5364

organic soil amendments

Agricultural Sulfur


Sulfur orders are delivered by end dump semi's or high side transfers when needed.  Orders are processed within 24 hours of receipt.

Call us today for product pricing delivered to your location(s)
(925) 822-5364

Norcal Ag Service 

Sold by the truckload (24tons)

Agricultural Prilled Sulfur..........99.5% (elemental)


We sell and deliver agricultural Sulfur as an organic soil amendment and soil conditioner by the truckload throughout central and northern California.

Prilled elemental sulfur to lower soil pH

Soil and Sulfur ?

Sulfur Pile at the Port of Stockton


General symptoms of sulfur deficiency 

  • Young leaves light green to yellowish color. 
  • In some plants, older tissue may be affected also.
  • Small and spindly plants.
  • Retarded growth rate and delayed maturity.