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 Mineral Nutrition

IMPORTANT TERMS:

  Aeroponics:The technique of growing plants in above ground strands provided with fine mist of normal solution.

·         Autotrophs:The organisms which prepare their own food through photosynthesis.

·         Ammonification:The process by which proteins and amino acids of dead bodies are decomposed into ammonia.

·         Bacteroids:Some bacteria which become enlarged to become membrane bound in the root nodules of leguminous plants.

·         Biological Nitrogen Fixation: Fixation of atmospheric nitrogen into the soil by bacteria and cyanobacteria.

·         Chelator:An organic element whose addition to culture solution ensures availability of another unavailable inorganic element.

·         Essential Elements: The nutrients essential for the healthy growth of the plants.

·         Heterotrophs:The organisms which cannot make their own food, but obtain their nutrition from autotrophs.

·         Hydroponics:The method of growing plants by placing their roots directly in nutrient solution.

·         Leghaemoglobin:A pink coloured oxygen scavenger present in the root nodules of legume plants.

·         Macro Nutrients: The essential elements present in plant tissues in easily detectable quantity.

·         Micro Nutrients: The essential elements present in plant tissues only in traces.

·         Mineral Nutrients: The process by which plants obtain and utilize mineral elements for their growth and development.

·         Non-mineral Elements: The essential elements obtained by the plants from air or water.

·         Nitrification:The process of conversion of ammonia to nitrates.

·         Primary Deficiency: Deficiency caused by a critical element (N, P or K).

 

                                    ADDITIONAL  INFORMATION

·      Liebig:Recorded minerals in plant ash and proposed the ‘law of minimum’. He is known as ‘Father of Biochemistry’.

·      Gericke (1940):  Developed hydroponics.

·      Aeroponics: It is a technique of growing plants in above ground strands provided with  fine mist of normal solution.

·      Nehar and Sakmann: Got Nobel prize for discovering single ion channels in the plasma membrane.

·      Winogradsky (1891): Discovered biological nitrogen fixation.

·      Most free ion: Potassium.

Mr. A. KINGSLIN M.Sc, BEd, Phd,(doing)

Post Graduate Teacher in Botany

St. Mary Goretty Hr. Sec School, Manalikarai 

Kanyakumari district