what crops do they cultivate?
Wheat and canola.
Alberta
Wheat and canola are primary farm crops, with Alberta leading the provinces 
who was richard gavin reid? A Canadian politician. had he been a premier? Yes, he was the sixth Premier of Alberta. which party did he represent? United Farmers of Alberta. what is the capital of the region where he served as the premier? Edmonton
wiki:1631555
Alberta [SEP] Agriculture and forestry
Agriculture has a significant position in the province's economy. The province has over three million head of cattle, and Alberta beef has a healthy worldwide market. Nearly one half of all Canadian beef is produced in Alberta. Alberta is one of the top producers of plains buffalo (bison) for the consumer market. Sheep for wool and mutton are also raised. Wheat and canola are primary farm crops, with Alberta leading the provinces in spring wheat production; other grains are also prominent. Much of the farming is dryland farming, often with fallow seasons interspersed with cultivation. Continuous cropping (in which there is no fallow season) is gradually becoming a more common mode of production because of increased profits and a reduction of soil erosion.