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,
Fraser Noble Universities of the United Kingdom (now known as Universities UK). From 1948 to 1957 he lectured in Political Economy (Economics) at the University of Aberdeen. He drew up the constitution for the Scottish Economic Society. He became the Principal of the University of Aberdeen in 1976. The university, like Leicester, has a Fraser Noble Building. He was knighted in the 1971 Birthday Honours. He married in 1945 and they had a son and a daughter. His wife taught Maths at Nairn Academy. He enjoyed playing golf. He lived in Nairn for the last 22 years of his life. Fraser Noble