Keith Day Ag Services is the Central Coast leader in the agriculture soil amendment industry. Not only can we produce, deliver, and spread our conventional and organic compost.  We also provide soil blends consisting of lime, gypsum, or any other amendment tailored to your crop needs. Our compost and soil blends are the result of close collaboration with farmers and growers to meet a wide range of needs. All our products are laboratory tested to meet stringent regulatory standards. Our goal is to provide the best quality compost and soil amendments, along with excellent service at the best price. 

Custom Blending

 At Keith Day Ag Services, we provide compost products tailored to meet the needs of both conventional and organic growers, with a focus on improving soil health and crop performance. 

Conventional Blending 

For conventional operations, we offer compost combined with soil amendments such as gypsum, lime, and other commercial fertilizers. These products are customized based on your soil conditions and nutrient requirements to support healthy crops and efficient field management. 

Organic Blending

Our organic inputs are registered with the California Department of Food and Agriculture (CDFA) Organic Input Materials (OIM) program and approved for use in certified organic production. All products meet the standards set by the California Fertilizing Materials Law and Regulations and the USDA National Organic Program. Each option is developed to help organic growers meet production goals while maintaining compliance and promoting soil vitality.

Delivery, Application and Spreading

Our delivery fleet includes side dump trailers, belt trailers, transfers trucks and moving floor trailers to cover almost any delivery requirement. We also operate specialized spreader trucks which apply material precisely to our customer location and specifications. In addition to our spreader trucks, we offer a spreader trailer that is ideal for use in confined spreading locations such as vineyards.