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Armiadi .
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The Role of Molybdenum in Biological Nitrogen Fixation ., Armiadi
Indonesian Bulletin of Animal and Veterinary Sciences Vol 19, No 3 (2009)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (97.615 KB) | DOI: 10.14334/wartazoa.v19i3.921

Abstract

The availability of soil Molybdenum (Mo) especially for acid soil is scarcely found, while their existency determines the process of Nitrogen fixation. Mo is the component of meta-protein nitrogenase which helps the process of biological nitrogen fixation and acts as essential component which needed for N bacteria metabolism. The nitrogenase enzyme needs Mo element in the process of its metabolism, which acts as electron carrier between oxidized and reduction stages. The deficiency of Mo has been reported in several crops, with various appearance, such as chlorosis or yellowish leaves. The paper describes the role of Mo in biological nitrogen fixation.   Key words: Symbiotic fixation, molybdenum, legume, nitrogenase
Biological Nitrogen Fixation on Legume ., Armiadi
Indonesian Bulletin of Animal and Veterinary Sciences Vol 19, No 1 (2009)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.418 KB) | DOI: 10.14334/wartazoa.v19i1.930

Abstract

Nitrogen (N) is one of the major limiting factors for crop growth and is required in adequate amount, due to its function as protein and enzyme components. In general, plants need sufficient nitrogen supply at all levels of growth, especially at the beginning of growth phase. Therefore, the availability of less expensive N resources would reduce the production cost. The increasing  use  of  chemical  fertilizer  would  probably  disturb  soil  microorganisms,  reduce  the  physical  and  chemical characteristics of soil because not all of N based fertilizer applied can be absorbed by the plants. Approximately only 50% can be used by crops, while the rest will be altered by microorganism into unavailable N for crops or else dissappear in the form of gas. Leguminous crops have the capacity to immobilize N2  and convert into the available N if innoculated with Rhizobium. The amount of N2 fixed varies depending on legume species and their environment.   Key words: Nitrogen fixation, legume
Biological Nitrogen Fixation on Legume Armiadi .
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 19, No 1 (2009): MARCH 2009
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.418 KB) | DOI: 10.14334/wartazoa.v19i1.930

Abstract

Nitrogen (N) is one of the major limiting factors for crop growth and is required in adequate amount, due to its function as protein and enzyme components. In general, plants need sufficient nitrogen supply at all levels of growth, especially at the beginning of growth phase. Therefore, the availability of less expensive N resources would reduce the production cost. The increasing  use  of  chemical  fertilizer  would  probably  disturb  soil  microorganisms,  reduce  the  physical  and  chemical characteristics of soil because not all of N based fertilizer applied can be absorbed by the plants. Approximately only 50% can be used by crops, while the rest will be altered by microorganism into unavailable N for crops or else dissappear in the form of gas. Leguminous crops have the capacity to immobilize N2  and convert into the available N if innoculated with Rhizobium. The amount of N2 fixed varies depending on legume species and their environment.   Key words: Nitrogen fixation, legume
The Role of Molybdenum in Biological Nitrogen Fixation Armiadi .
WARTAZOA, Indonesian Bulletin of Animal and Veterinary Sciences Vol 19, No 3 (2009): SEPTEMBER 2009
Publisher : Indonesian Center for Animal Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (97.615 KB) | DOI: 10.14334/wartazoa.v19i3.921

Abstract

The availability of soil Molybdenum (Mo) especially for acid soil is scarcely found, while their existency determines the process of Nitrogen fixation. Mo is the component of meta-protein nitrogenase which helps the process of biological nitrogen fixation and acts as essential component which needed for N bacteria metabolism. The nitrogenase enzyme needs Mo element in the process of its metabolism, which acts as electron carrier between oxidized and reduction stages. The deficiency of Mo has been reported in several crops, with various appearance, such as chlorosis or yellowish leaves. The paper describes the role of Mo in biological nitrogen fixation.   Key words: Symbiotic fixation, molybdenum, legume, nitrogenase
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