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Encyclopedia > Micronutrient

Micronutrients for plants:


There are about eight nutrients essential to plant growth and health that are only present in very small quantities. These are manganese, boron, copper, iron, chlorine, cobalt, molybdenum, and zinc. Some consider sulfur a micronutrient, but it is listed here as a macronutrient. Though these are present in only small quantities, they are all necessary.


Boron - One of eight micronutrients. Boron is believed to be involved in carbohydrate transport in plants; it also assists in metabolic regulation. Boron deficiency will often result in bud dieback.


Chlorine - One of eight micronutrients in plants. Chlorine is necessary for osmosis and ionic balance; it also plays a role in photosynthesis.


Cobalt - One of eight micronutrients essential to plant health. Cobalt is thought to be an important catalyst in nitrogen fixation. It may need to be added to some soils before seeding legumes.


Copper - One of eight micronutrients in plants. It is a component of some enzymes and of vitamin A. Symptoms of copper deficiency include browning of leaf tips and chlorosis.



Iron - One of eight micronutrients in plants. It is essential for chlorophyll synthesis, which is why an iron deficiency results in chlorosis.


Manganese - One of eight micronutrients. Manganese activates some important enzymes involved in chlorophyll formation. Manganese deficient plants will develop chlorosis between the veins of its leaves. The availability of manganese is partially dependent on soil pH.


Molybdenum - One of eight micronutrients essential to plant health. Molybdenum is used by plants to reduce nitrates into usable forms. Some plants use it for nitrogen fixation, thus it may need to be added to some soils before seeding legumes.


Zinc - One of eight micronutrients necessary for plant health. Zinc participates in chlorophyll formation, and also activates many enzymes. Symptoms of zinc deficiency include chlorosis and stunted growth.


Image File history File links Micronutrients. ...


Micronutrients are essential elements only needed by life in small quantities. Vitamins and trace minerals are sometimes included in the term. A chemical element, often called simply element, is a chemical substance that cannot be decomposed or transformed into other chemical substances by ordinary chemical methods. ... A vitamin is an organic molecule required by a living organism in minute amounts for proper health. ... Microminerals (also known as trace elements) are micronutrients that are chemical elements. ...


Microminerals or trace elements include at least iron, cobalt, chromium, copper, iodine, manganese, selenium, zinc, and molybdenum. They are dietary minerals needed by the human body in very small quantities (generally less than 100mg/day) as opposed to macrominerals which are required in larger quantities. General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... General Name, Symbol, Number cobalt, Co, 27 Chemical series transition metals Group, Period, Block 9, 4, d Appearance metallic with gray tinge Atomic mass 58. ... General Name, Symbol, Number chromium, Cr, 24 Chemical series transition metals Group, Period, Block 6, 4, d Appearance silvery metallic Atomic mass 51. ... General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11, 4, d Appearance metallic brown Atomic mass 63. ... General Name, Symbol, Number iodine, I, 53 Chemical series halogens Group, Period, Block 17, 5, p Appearance violet-dark gray, lustrous Atomic mass 126. ... General Name, Symbol, Number manganese, Mn, 25 Chemical series transition metals Group, Period, Block 7, 4, d Appearance silvery metallic Atomic mass 54. ... SE redirects here. ... General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Appearance bluish pale gray Atomic mass 65. ... General Name, Symbol, Number molybdenum, Mo, 42 Chemical series transition metals Group, Period, Block 6, 5, d Appearance gray metallic Atomic mass 95. ... Dietary minerals are chemical elements required by living organisms. ... Macrominerals (also known as macroelements or bulk minerals) are macronutrients that are chemical elements. ...


Vitamins are organic chemicals that a given living organism requires in trace quantities for good health, but which the organism cannot synthesize, and therefore must obtain from its diet. An organic compound is any of a large class of chemical compounds whose molecules contain carbon, with exception of carbides, carbonates and carbon oxides. ... In nutrition, the diet is the sum of the food consumed by an organism. ...


See also


  Results from FactBites:
 
Preventing micronutrient malnutrition: A guide to food-based approaches - A manual for policy makers and programme ... (2773 words)
Micronutrient malnutrition is a term commonly used to refer to vitamin and mineral nutritional deficiency diseases.
The primary causes of most micronutrient malnutrition are inadequate intakes of micronutrient-rich foods and impaired absorption or utilization of nutrients in these foods due partly to infection and parasitic infestation, which also increase metabolic needs for many micronutrients.
Measures to prevent and control micronutrient deficiencies, as part of an overall framework to improve nutritional wellbeing, were identified and adopted at the International Conference on Nutrition (ICN), which was jointly convened by FAO and WHO in Rome in December 1992.
Sprinkles Global Health Initiative / Micronutrient Deficiencies - The Problem (270 words)
Micronutrient deficiencies are a form of malnutrition caused by deficiencies of vitamins and minerals (also known as micronutrients) from the diet that are essential for human health, growth and development.
Micronutrient deficiencies are a significant cause of illness and premature death throughout the world.
Micronutrient deficiencies also lead to impaired growth and cognitive development, birth defects, cretinism, and blindness, as well as decreased school and work performance and poor general health.
  More results at FactBites »


 

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