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,
General Noble (tree) General Noble (tree) The General Noble Tree was a Giant Sequoia tree formerly within the Converse Basin Grove, with its site located in Giant Sequoia National Monument of the Sierra Nevada, in Fresno County, California. The General Noble Tree was cut down in 1892 to create an exhibit for the 1893 World's Columbian Exposition held in Chicago. The General Noble Tree, with a ground perimeter of (measured on a slope), was the second largest tree in the Converse Basin Grove (after the Boole Tree) and it was the largest tree ever cut down. Although not among the very largest Giant