I recommend watching the video backtoedenfilm.com by placing wood chips (example is from a tree trimming company) in your garden and around fruit trees... the deteriorating chips will provide wonderful mulch for veggies, fruits etc...
Thanks @rockriver looks like a good film, I will watch it later. Back to Eden Film | The Official Website - Watch Back to Eden Film Organic Gardening Documentary for Free the video is located at the bottom of the page.
It's a good film but few have reproduced similar results. Keep in mind, Paul has been building his soil from wood chips and chicken poos for 20+ years...it won't happen in 2-3.
Wood chips do require plenty of Nitrogen in the decomposition process. Something to keep in mind, also. Wood Chip Backyard Biology
One thing to remember about using woodchips which may or may not apply to your area - woodchips are a favorite breeding ground for ticks.
Depends on the wood chips and what other type of composting material you use. Not a huge fan of wood chips except as a ground cover for keeping weeds down in flower beds.
Wood chips are good for weed suppression, reducing water loss due to evaporation, moderating soil temperature, adjusting soil PH, and improving the soil profile. However...depending on the source of the parent wood.... may Encourage white-ants, termites, borers, Affect soil PH adversely by raising or lowering soil PH, Affect soil fertility due to nitrogen draw down caused by microbes metabolising the cellulose in the wood chips, Create habitat for bugs, spiders, insects, etc that may be harmful to garden plants (on the upside..the habitat may support beneficial insects and spiders etc. Cause Tannins and other chemicals to leach from wood/bark chips which may suppress your fruit and vegetable plants as well as weeds. Create a fire risk, especially if placed adjacent to dwellings and out buildings. Before deciding on woodchips as a gardening option....do a risk / cost-benefit analysis first.
There are a few dairy farms that stopped/minimize there use of antibiotics and I pick up some of their manure.