This document provides information about arable farming practices in the UK, including the types of arable crops grown, the benefits of crop rotation, and the typical production cycle and activities involved in growing wheat, potatoes, oilseed rape, and sugar beet. It notes that while pollution incidents and pesticide levels in rivers have declined since 1990 due to environmental improvements, some farmland wildlife species are still declining and nutrients, pesticides, and sediment continue to pollute watercourses. Key farmland bird populations have experienced dramatic declines of 55-89% since 1970.