BI111 Lecture Notes - Nutrient, Hydroponics, Nitrification
Document Summary
Micronutrients: any mineral required by an organism in small trace amounts. Essential nutrients: any of the essential amino acids, fatty acids, vitamins, and minerals required in a plant. Nitrification: a metabolic process in which certain soil bacteria convert ammonia or ammonium ions into nitrites that are then converted by other bacteria into nitrates, a form usable by plants. Hydroponics an experimental method for identifying minerals absorbed into plant tissues that were essential for growth. Scientist sachs, measured various amounts of minerals and nutrients in solutions, in which he grew plants. By eliminating the elements on at a time, he determined the six essential nutrients: nitrogen, calcium, magnesium, phosphorous, sulfur. You must remember to supply air bubbles to the roots because it is an essential nutrient. Carbon, hydrogen and oxygen are the only plant nutrients not considered to be minerals: these nutrients are obtained from the air and water (the others are obtained from the soil, or dissolved in water)
