The Formation of Nitrates in a Soil Following the Growth of Red Clover and of Timothy

Lyon, T. L.; Bizzell, J. A.; Wilson, B. D.

doi:10.1097/00010694-192001000-00004

Cited by 10 publications

(13 citation statements)

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“…The higher nitrification rate under and some time after the legumes as compared to non-legumes noted in this investigation as well as in several earlier ones (10,11) may be explained in various ways. The primary cause is probably connected with the amount of mobilizable organic nitrogen, which is greater in the legume plots (8), due either to the secretion of organic nitrogen compounds or to the lower carbon nitrogen ratio in the dying roots of the legumes.…”

Section: Methodssupporting

confidence: 46%

Influence of legumes on microbial activity in soil

Kaila

1951

AFSci

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The influence higher plants are known to exert upon the development of soil microflora is of the highest importance. The abundance and quality of the microscopic population in the soil has been found to depend more on the crop than on the moisture, temperature and acidity of their environment, provided these factors vary within natural ranges (5). Even the so called seasonal fluctuation of microorganisms in the soil is attributed to the development of the higher plants (14). Plants modify the soil structure by the penetration of their roots, thus causing changes in the aeration and moisture conditions of the soil. They withdraw mineral nutrients from soil, and excrete carbon dioxide and various organic compounds, and after their death large amounts of organic matter remains in the soil. All this affects the development of soil microorganisms, and since both the activities of various plants and the amount and quality of their residues vary, the population harbouring the soil under and after each crop has its own characteristics.

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Section: Methodssupporting

confidence: 46%

Influence of legumes on microbial activity in soil

Kaila

1951

AFSci

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“…The reduction of nitrates has been investigated by Beijerinck, 1888;Orla-Jensen, 1909;Zipfel, 1911;Prucha, 1915;Wilson, 1917;Hills, 1918;Miiller and Stapp, 1925;Leonard, 1929;and Pohlman, 1931c. Zipfel noted that the organisms of pea, horse bean, red clover, and garden bean nodules all reduce nitrate to nitrite but not to ammonia.…”

Section: Nitrogen Nutrition |mentioning

confidence: 99%

“…Gelatin liquefaction. Almost without exception, the early investigators, Beijerinck, 1888;Hiltner, 1900b;Kellerman and Beckwith, 1906b;Harrison and Barlow, 1907;de'Rossi, 1907;Zipfel, 1911;Prucha, 1915;Wilson, 1917; and others reported the nodule bacteria unable to liquefy gelatin. Fremlin, 1898, made ROOT…”

Section: University Of Wisconsin Studiesmentioning

confidence: 99%

“…The influence of a great number of salts such as chlorides, nitrates, and sulphates on the vitality of soybean bacteria was studied by Wilson, 1917. His procedure was to expose the bacteria to the action of the salts of Pfeffer's solution in various dilutions and combinations in distilled water. After 4-6 weeks he tested for survival, or the ability of the organism to effect nodulation.…”

Section: Tt Of Solutionmentioning

confidence: 99%

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Root Nodule Bacteria and Leguminous Plants

1939

Agronomy Journal

115

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Root fOLMS cecccccescceecccesceeesecccecnececececcecssseecesasesecenaeeccsteceseeeseecsnnneesnenneeenscenensseemseeneseonsecensesuencenneseans 24 Alig DOAUCS cecoccmcecccocacsacscccesecesssanessessseraesesnesesesenesessesecnsncosecconeatecsssoneeeaeensesseestsetsnsesseeeneee 24 Coriaria NOAULES ceccccccocccccccccesccsescecescecseseseecesesesnesescernecesecaneneuseeceeseaeeceetsesseteecesetsnscetensecsenene QO -Nodules on the Elaecagnaceae......ccscccsessccccecsessassccnssscesseceeesssnesecsssaesenesensssnecosssnecaneenasectneee ZO Ceanothus todtles cocccccccccccoscscco-ccsucsuvsvssossnessceneeneeneronssessesesecseceenetstencenseenesateeneecessesseseseesenee OD Meyrica nodules -.n..cessecescecssccesceceesceeeeeseneeseeceeteneatectecesenenssssenecneaseee menmeccenanaesnmecnsenenaeateaeass Podocar pus nOdules -...-.-sceccccccecececceccceceeeneeccereeeeneeseneecenssensecnmmemnessteneeesnsnesnenemamemenenaesenseatens Nodules on the Cycadaceae -...n..ssssssssssssscsnsssoseecosssesescessenesseneeseessenesesnenconesensessnsesscatecsatees COSUAVING TOAUICS ceccecccmcoccccsecccsscoescssesessssesceseeeesesoesteseeenecesesecotssssnenetestneneacoesesersesessesnesenenseee

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“…than of timothy that these experiments were begun. A preliminary report (4) was published in I9I9. This contained a review of the literature dealing with (r) the capacity of a soil to form nitrates from the nitrogen remaining after the growth of certain legumes, and (2) the power of the soil to form nitrates from nitrogenous organic matter or ammonium salts when brought into the laboratory and incubated.…”

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confidence: 99%