Recent studies by Washington State University Cooperative Extension show that applying compost to the soil can radically increase plant yield. An astonishing 60% yield increase was produced in some of their Whatcom County vegetable growing tests.
Although there is no way to guarantee the same results in your garden, there is no question that the broad range of nutrients contained in dairy compost will slowly and gently add nutrients and greatly benefit your soil and its vegetation.
Healthy soils are teeming with a community of earthworms, ground beetles, centipedes and other organisms. Adding compost will help maintain these beneficial soil populations and inhibit the growth of detrimental soil micro-organisms.
Compost will also increase soil permeability and improve water holding capacity.