Christmas tree cultivation has shifted toward the production of higher-quality trees, increasing land quality expectations as well. Indeed, some species of tree, such as the Fraser fir, are unable to grow on low-quality, marginal farmland. Flat or gently rolling land is preferred to that with steep slopes and inclines, which is prone to erosion and fluctuations in fertility. Noticeable obstructions, such as rocks, fences or significant underbrush, are also undesirable. Like all crops and plants, Christmas trees require a specific set of nutrients to thrive. There are 16 elements crucial for growth; of those, three are obtained through air and water: hydrogen, carbon,
Douglas Fraser 23, 2008, of complications from emphysema at Providence Hospital in Southfield, Michigan. His life and professional career is documented in historical materials housed within the Walter P. Reuther Library at Wayne State University. His time as UAW president and vice-president and as university professor are chronicled in individual collections. The archival materials include personal correspondence, administrative memoranda, photographs, and other record types. Researchers are encouraged to find the collections at the Walter P. Reuther Library website. Douglas Fraser Douglas Andrew Fraser (December 18, 1916 – February 23, 2008) was a Scottish-American union leader. He was president of the United Auto