| Crop production is a complex business, requiring many skills (such 
            as biology, agronomy, mechanics, and marketing) and covering a variety 
            of operations throughout the year. In this module, the practice of 
            crop production will be described by discussing eight components in 
            the crop production cycle: For each component, the operations and when they need to be carried 
              out, the machinery or equipment farmers use, potential environmental 
              concerns related to that component, and best management practices 
              recommended to minimize environmental problems will be described. 
             |  Source: 
            USDA - National Resources Conservation Service
 |