I garden quite a lot. In the years when I add significant amounts of composted steer manure to the garden soil, I get excellent plant vigor and great harvests. And, in these years, I also usually feel a need to add a little fertilizer as side dressing at most once or twice during the summer. What I add is ordinary commercial composted steer manure I buy in 30 or so lb. bags at the local hardware store (Orchard Supply Hardware -- OSH). I'm a believer in composted steer manure! In years I fail to add steer manure, I get significantly less robust plants and lesser harvest (chiles, tomatoes, whatever), and even so I have to use more fertilizer during the summer. My soil contains a high proportion of clay, though fortunately not the Child's Modelling Clay some people have. For the past several years, the amount of steer manure I mix in is (almost always, but I forgot to this year :-( ) approximately 1/8-1/4 bag per planting hole for chiles -- this means something on the order of 1/4-1/3 of the soil in the 12" diameter region surrounding each plant is steer manure. Due to "shortage of time", I usually plant each plant within 5 minutes of mixing the steer manure into the soil, though I prefer to have several weeks go by between these two events since that allows soil critters to mix everything a bit making the soil structure much easier to work for planting. --- Brent