Mike Orzolek reviews methods & practices for weed control.
Effective weed control in vegetable production involves more than the use of herbicides. An effective weed management program includes the use of both cultural and chemical practices. There are several cultural practices that help to suppress both annual and perennial weeds including: liming, band application of fertilizer, moldboard plowing, cultivation(s), crop rotations, and use of black or colored polyethylene mulch.
Also see: Weed Control Strategy Differences in Alternative/Organic vs Conventional Farming by Brad Majek and Jack Rabin.