CULTIVATION TRIALS IN CEREAL FIELD CONDITIONS

摘要

There have been many 'muddy floods' in recent years, defined as flash floods that affect only a relatively small area, full of soil and lasting only an few hours. Many studies have demonstrated that these usually come from farmers fields and that the farming of those fields has changed as the floods have increased. Study of fields where muddy floods started shows that the water flowing off the field has often done so down the tramlines, at least for a part of the journey off the field or during a concentration phase. Study of the history of these fields shows that many of them were classed as too steep, too shallow of soil or else too poor to be arable and so were grassland. Often the now large field was also broken by hedges and/or ditches in the past.