Christmas tree cultivation tractors, and shaper sheers. Mechanized planters, at a cost of about US$4,000, are not essential but a work-saving luxury for farmers. Farmers can purchase seedlings, the lifeblood of a Christmas tree farm, from nurseries. One farmer in Oregon purchased seedlings for between US$200–300 per 1,000 plants. The farmer, a wholesaler, sold his final products for about $20 each; after the cost of the trees and other expenses, a profit of $2–3 per tree. The best-selling species in the North American market are Scots pine, Douglas-fir, noble fir, balsam fir, Fraser fir, Virginia pine, and eastern white pine, although other types
Douglas E. Noble Douglas E. Noble Douglas E. Noble is an American architect and tenured faculty member at the USC School of Architecture. He is a fellow of the American Institute of Architects. He is known for his work in four overlapping arenas: Architectural Computing, Building Science, Architecture Education, and Design Theories and Methods. He received the ACSA/AIAS New Faculty Teaching Award in 1995, and the ACSA Creative Achievement Award in 2013 He was named among the "10 most admired educators" in architecture in 2010 and was twice more selected as a "most admired educator" in 2015 and 2018 He is the recipient