macronutrient element

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• macronutrient — “+ noun Etymology: macr + nutrient : a chemical element (as potassium, calcium, magnesium, nitrogen, phosphorus, sulfur) of which relatively large quantities are essential to the growth and welfare of a plant called also macroelement, major… …   Useful english dictionary

• macronutrient — noun Date: 1942 1. a chemical element (as nitrogen, phosphorus, or potassium) of which relatively large quantities are essential to the growth and health of a plant 2. a substance (as protein or carbohydrate) essential in large amounts to the… …   New Collegiate Dictionary

• macronutrient — mac·ro·nu·tri·ent n(y)ü trē ənt n a chemical element or substance (as protein, carbohydrate, or fat) required in relatively large quantities in nutrition * * * mac·ro·nu·tri·ent (mak″ro nooґtre ənt) an essential nutrient required in a… …   Medical dictionary

• macronutrient — A major chemical element essential for normal growth and development. In tissue culture media, macronutrients are those required in concentrations above 0.5 millimole/litre …   Glossary of Biotechnology

• trace element — noun a) A chemical element present in a sample in very small quantities. b) A chemical element in an organism’s diet that is required in very small amounts in order to maintain proper biochemical function; a micronutrient. Syn: micronutrient …   Wiktionary

• mineral element — noun : a chemical element usually other than carbon, hydrogen, oxygen, or nitrogen that is a constituent of plant or animal tissue and in most cases is found in the ash remaining after incineration of the tissue specific roles of the mineral… …   Useful english dictionary

• major element — noun : macronutrient * * * Geol. any chemical found in great quantity in the rocks of the earth s crust. Cf. minor element (def. 1) …   Useful english dictionary

• plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… …   Universalium

• Soil conservation — is set of management strategies for prevention of soil being eroded from the earth’s surface or becoming chemically altered by overuse, salinization, acidification, or other chemical soil contamination. The principal approaches these strategies… …   Wikipedia

• Dietary mineral — Dietary minerals (also known as mineral nutrients) are the chemical elements required by living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen present in common organic molecules. Examples of mineral elements… …   Wikipedia

• Potassium — (pronEng|pəˈtæsiəm) is a chemical element. It has the symbol K ( la. kalium, from ar. qalīy), atomic number 19, and atomic mass 39.0983. The name potassium comes from the word potash , as potassium was first isolated from potash. Potassium is a… …   Wikipedia