19
            
            
              
                
                  Part IV
                
              
            
            
              
                
                  FIELD SURVEY SUMMARY TABLES
                
              
            
            
              
                List of Summary Tables in Part IV
              
            
            
              Table No.
            
            
              Province
            
            
              5.
            
            
              Number of fields surveyed, density, species richness and weed-free quadrats in the surveyed crops ..............23
            
            
              6.
            
            
              Irrigated fields in Alberta  .................................................................................................................................24
            
            
              7.
            
            
              Annual crops .................................................................................................................................................26
            
            
              8.
            
            
              Cereal crops ...............................................................................................................................................28
            
            
              9.
            
            
              Spring wheat ..........................................................................................................................................29
            
            
              10.    Barley .....................................................................................................................................................30
            
            
              11.    Corn........................................................................................................................................................31
            
            
              12.   Broad-leaved annual crops.........................................................................................................................32
            
            
              13.    Canola ....................................................................................................................................................33
            
            
              14.    Dry beans ...............................................................................................................................................34
            
            
              15.    Potatoes ..................................................................................................................................................34
            
            
              16.    Sugar beets .............................................................................................................................................35
            
            
              17.  Perennial crops ..............................................................................................................................................36
            
            
              18.    Alfalfa ....................................................................................................................................................37
            
            
              19.    Grass hay................................................................................................................................................38
            
            
              Ecoregion
            
            
              20. Number of fields surveyed by crop in each ecoregion......................................................................................39
            
            
              21. Density, species richness and weed-free quadrats in the surveyed crops in each ecoregion.............................39
            
            
              22. Irrigated fields in the Fescue Grassland Ecoregion  ..........................................................................................40
            
            
              23.  Annual crops .................................................................................................................................................41
            
            
              24.   Cereal crops ...............................................................................................................................................41
            
            
              25.  Perennial crops ..............................................................................................................................................42
            
            
              26. Irrigated fields in the Moist Mixed Grassland Ecoregion  ................................................................................43
            
            
              27.  Annual crops .................................................................................................................................................44
            
            
              28.   Cereal crops ...............................................................................................................................................45
            
            
              29.    Spring wheat ..........................................................................................................................................46
            
            
              30.    Barley .....................................................................................................................................................47
            
            
              31.    Corn........................................................................................................................................................47
            
            
              32.  Broad-leaved annual crops ............................................................................................................................48
            
            
              33.   Canola ........................................................................................................................................................48
            
            
              34.  Perennial crops ..............................................................................................................................................49
            
            
              35.    Alfalfa ....................................................................................................................................................49
            
            
              36.    Grass hay................................................................................................................................................50
            
            
              37. Irrigated fields in the Mixed Grassland Ecoregion  ..........................................................................................51
            
            
              38.  Annual crops .................................................................................................................................................53
            
            
              39.   Cereal crops ...............................................................................................................................................54
            
            
              40.    Spring wheat ..........................................................................................................................................55
            
            
              41.    Barley .....................................................................................................................................................56
            
            
              42.    Corn........................................................................................................................................................57
            
            
              43.   Broad-leaved annual crops.........................................................................................................................58
            
            
              44.    Canola ....................................................................................................................................................59
            
            
              45.    Dry beans ...............................................................................................................................................59
            
            
              46.    Potatoes ..................................................................................................................................................60
            
            
              47.    Sugar beets  ............................................................................................................................................60
            
            
              48.  Perennial crops ..............................................................................................................................................61
            
            
              49.    Alfalfa ....................................................................................................................................................62
            
            
              50.    Grass hay................................................................................................................................................63