Norcal Ag Service delivers organic composts such as organic greenwaste compost, cow manure compost and composted chicken manure  by the truckload  to Yuba City, Sacramento, Merced,  Modesto, Livermore, Napa Valley, Sonoma, Lodi and all communities throughout central and northern California

How compost is made

Organic Composts

Call Today for delivery pricing.


Why use compost

Serving all of central and northern California

We also do custom blending with gypsum, limestone, sulfur and other soils and amendments....just ask!

Largest Variety of Organic Compost

Chicken, Cow, Mushroom, Greenwaste

Oxygen Stage
When the windrow is formed microorganisms consume oxygen (aerobic decomposition.) As oxygen is used up aerobic decomposition slows down. Aeration is provided by mechanical turning to add oxygen and replenish pore space within the settled medium.This promotes air movement through the windrow.

Temperature Stage
Temperature increases due to microbial activity in the windrow.  The temperature increases to 40-60  C and generally is maintained for several weeks. As aerobic decomposition slows the temperature drops off.

Curing Stage
When the aerobic decomposition has slowed the curing phase has begun.  Oxygen usage is so slow the windrows don't need to be turned anymore. As the temperature drops to that of ambient air the compost is done.

5  locations in central & northern California

  • Organic Green Waste Compost

Norcal Ag Service provides growers two types of organic certified greenwaste composts.  Inputs from lawn, shrub and tree clippings make up over 95% of the material used to produce this type of compost.  Screened at "3/8 inch and processed through a "windrow" composting technique.

1.  OMRI/CDFA Certified Organic Compost                      (Grade B - less than 1% foreign material)

2.  CCOF Certified Organic Compost                               (Grade A+ - NO PLASTIC OR GLASS) - Private Yard

Get Ready for Spring! 

Bulk by the truckload

Compost 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

Using Windrows​

Norcal Ag Service is where to buy organic composts

  • Dairy Cow/Steer Manure & Compost

Norcal Ag Service provides two different cow manure natural fertilizers for growers to consider. (bulk by the truckload)

1.  Fresh and wet cow manure

2.  Cooked and Screened (3-2-2)

  • Chicken Manure  & Compost

Norcal Ag Service provides three different types of chicken manure natural fertilizers for growers to choose from. (bulk by the truckload)

1.  Raw (hot) pure chicken manure (4-3-3)

2.  Cooked and Screened (3-3-2)

3.  OMRI Listed Composted Chicken Manure                (for certified organic growers)



Norcal Ag Service