Avascular necrosis (AVN) of the hip is an abnormal and possibly crippling condition in which blood cannot get to the hip bone. When the blood supply to the bone is blocked, the area without blood supply can die. This may lead to collapse of the bone requiring replacement with an artificial hip joint.
Nitrogen Fixing Trees for Permaculture Flowers of the leguminous tree, Kowhai, the national flower of New Zealand Nitrogen fixation is a pattern of nutrient cycling which has successfully been used in perennial agriculture for millennia. This article focuses on legumes, which are nitrogen fixers [â¦]
Nitrogen fixing bacteria are nature's main method of changing nitrogen to plant available forms. It occurs underground in a very friendly symbiotic relationship of legume plant with Rhizobium types of bacteria. So Nature's nitrogen factory could look something like this lupine field in Glacier National Park.