| In return, the plant shelters and nourishes the bacterium inside root nodules, where nitrogen fixation occurs. |
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| In the 1970s, purified heterocysts from this strain were used to demonstrate that they are the sites of aerobic nitrogen fixation. |
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| The nitrogen fixation process depends on a successful symbiotic relationship between a bacteria species and a host plant. |
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| In addition, when Cuscuta parasitises Lupinus albus, atmospheric nitrogen fixation by the nitrogen-fixing host is severely depressed. |
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| Legumes, such as soybean, are able to capture atmospheric nitrogen and utilize it through the process of nitrogen fixation. |
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| Thus, we can see that nitrogen fixation is a unique process in which the soybean plant and bacteria work closely together throughout the season. |
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| Sources of immobilized nutrients during decomposition include translocation from soil or litter via fungal hyphae, throughfall, and nitrogen fixation. |
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| However, in 1969 Postgate put a student, Ray Dixon, on to the study of the genetics of nitrogen fixation. |
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| It does this by integrating natural processes such as nutrient cycling, nitrogen fixation, soil regeneration and natural enemies of pests into food production processes. |
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| This nitrogen fixation still requires intense respiration, which depends on the oxygen permeability of the nodules. |
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| Faba bean and lupin are champions of nitrogen fixation when moisture is plentiful. |
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| What is the role of iron as a limiting nutrient and affecting nitrogen fixation and carbon sequestration in large areas of the Southern Ocean? |
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| One study has also shown that glyphosate applications on RR soybeans may depress soybean root nodulation and therefore nitrogen fixation. |
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| Crotalaria is a tropical legume that suppresses nematodes, resists drought and is associated with high levels of nitrogen fixation. |
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| Vance's focus is on improving biological nitrogen fixation for alfalfa and other legumes as well as improving how plants acquire more phosphorus from the soil. |
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| Strains of Sinorhizobium meliloti that have been genetically improved to enable nitrogen fixation by the plant have been used since 1997 to seed legume crops. |
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| Support was also provided through the UNESCO Dakar Office for a training course on biological nitrogen fixation, organized in collaboration with the African Association for Biological Nitrogen Fixation. |
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| They form symbiotic associations by inducing nodule formation on the root system of their legume host plant, providing optimal conditions for nitrogen fixation. |
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| Terrestrial ecosystems rely on microbial nitrogen fixation to convert N2 into other forms such as nitrates. |
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| This revealed the significance of legume in nitrogen fixation and its inclusion to cropping system. |
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| Cyanobacteria have specialized, walled-off cells called heterocysts in which nitrogen fixation is carried out. |
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| In Iran few studies have been done on biological nitrogen fixation but in recent years special attention has been paid to this matter. |
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| This anthropogenic addition of nitrogen has reached a magnitude comparable to about half of global ocean nitrogen fixation. |
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| There, he undertook research into the symbiotic nitrogen fixation of leguminous plant and rhizobia, and began an over-a-half-century career of soil science and research. |
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| Inadequate plant available soil P can in turn lead to poor legume nodulation, low biological nitrogen fixation, and reduced forage or green manure growth. |
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| Oligotrophy and nitrogen fixation during Eastern Mediterranean sapropel events. |
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| The steps, which are not altogether sequential, fall into the following classifications: nitrogen fixation, nitrogen assimilation, ammonification, nitrification, and denitrification. |
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| Ideally, growers will vary cover crops from year to year to take advantage of different botanical characteristics such as rooting patterns, allelopathy and nitrogen fixation. |
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| The unique ecological role of Fabaceae is in nitrogen fixation. |
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| In general, it appeared that nitrogen fixation depends on a group of bacteria whose active enzyme contains iron as the central element, similar to the structure of haemoglobin. |
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| In agriculture, a priority of modern plant genetics is to replace nitrogen fertilizers, a major source of pollution, with nitrogen fixation within the plant. |
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| Legumes can add nitrogen through nitrogen fixation and deep rooted green manure crops such as sweet clover and alfalfa can retrieve nutrients such as nitrogen and phosphorous from deep in the soil profile. |
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| Cyanobacterium is a photosynthetic bacterium of the class Coccogoneae or Hormogoneae, generally blue-green in colour and in some species capable of nitrogen fixation. |
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| There are other long term targets such as nitrogen fixation, lignin biosynthesis, cellulose biosynthesis, photosynthetic efficiency, cytoplasmic male sterility and apical dominance. |
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| Nitrogen is put in the soil by the use of mineral fertilisers and livestock manure, through atmospheric deposition, biological nitrogen fixation and incorporation of crop residues. |
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| In nature, two principal processes of nitrogen fixation are known. |
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| Bio-fertilizers increase soil fertility through varied processes, such as phosphorus solubilizing, nitrogen fixation, and synthesis of growth-enhancing substances. |
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| The Germans employed the Haber process of nitrogen fixation to provide their forces with a constant supply of gunpowder despite the British naval blockade. |
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| Aerobiology has been little studied, but there is evidence of nitrogen fixation in clouds, and less clear evidence of carbon cycling, both facilitated by microbial activity. |
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| Nitrogen fixation was also much more tolerant of salinity in this selection than in the other genotypes studied. |
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| Nitrogen fixation associated with rhizosheaths of Indian ricegrass used in the stabilization of Slick Rock, Colorado, tailings pile. |
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| Sprent JI Nitrogen fixation and growth of non-crop legume species in diverse environments. |
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| Nitrogen fixation and petrochemicals were invented by Westerners. |
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