Wheat and barley are important crops to the Tulelake Basin and other intermountain valleys of northern California. Both bread wheats and durum wheats are grown. Barley is used for malting and as a feed grain. The yields of barley and wheat vary widely from field to field and from year to year, ranging from 2000 to 7000 pounds per acre. These fluctuations are attributed to climatic and soil factors, and to the cultural practices followed.