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Общее количество найденных документов : 16281
Показаны документы с 1 по 20
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1.
| Paramasivam S. Distribution of nitrogen in soils of the southern Mississippi River alluvial plain // Commun. Soil Sci. and Plant Anal., 1994. Vol. 25, N 3-4.-С.247-267
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2.
| Fluxes of CH[4], N[2]O and CO[2] in a drained minerotrophic mire treated with different nitrogen compounds // 11 Int. Symp. Environ. Biogeochem., Salamaca, Sept. 27-Oct. 1, 1993: Abstr.. -Salamanca, 1993.-С.0
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3.
| Rondon M.A. A piston-action ball mill for the rapid preparation of plant and soil samples for the automated analysis of nitrogen ({1}{5}N) and carbon ({1}{3}C) // Commun. Soil Sci. and Plant Anal., 1994. Vol. 25, N 3-4.-С.435-445
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4.
| Fecenko Anorganicky dusik a jeho zavislost' od niektorych frakcii organickeho dusika // Agrochemia., 1993. Vol. 33, N 9.-С.225-228
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5.
| Wiltshire G.H. Effects of sample drying temperature on indices of available nitrogen in soils // S. Afr. J. Plant and Soil, 1994. Vol. 11, N 1.-С.34-40
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6.
| Kovanda Vyuziti metody prutokove injekcni analyzy pri stanoveni obsahu ruznych forem anorganickeho dusiku v pudnich extraktech // Agrochemia, 1993. Vol. 33, N 12.-С.299-301, I
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7.
| Serrasolsas I. Mineralization of phosphorus and nitrogen in some forest soils heated to different temperatures // 11 Int. Symp. Environ. Biogeochem., Salamaca, Sept. 27-Oct. 1, 1993. -Salamanca, 1993.-С.5
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| Emission of N-trace gases from soils of spruce stands in the Black forest // 11 Int. Symp. Environ. Biogeochem., Salamaca, Sept. 27-Oct. 1, 1993. -Salamanca, 1993.-С.5
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9.
| Makarov M.I. Nitrogen cycle disturbance and acidification in polluted forest ecosystems // 11 Int. Symp. Environ. Biogeochem., Salamanca, Sept. 27 - Oct. 1, 1993. -[Salamanca, 1993].-С.1
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10.
| Olfs H.-W. Characterization of the N mineralization potential of soils by measurement of biomass and extractable organic nitrogen fraction // Proc. 2nd ESA Congress, 1992. -Warwick, 1992.-С.420-421
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11.
| Veranderungen der organischen Komponenten organisch-mineralischer Komplexe (OMK) in Dauerfeldversuchen auf LoSS und loSSbeeinfluSSten Substraten // Arch. Acker- und Pflanzenbau und Bondenk., 1991. Vol. 35, N 2.-С.85-93
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12.
| Asmus EinfluSS unterschiedlicher Humusgehalte im Boden auf die N- und C-Mineralisierung und die Wirkung von DungungsmaSSnahmen // Arch. Acker- und Pflanzenbau und Bodenk., 1991. Vol. 35, N 6.-С.393-401
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13.
| Baker J.L. Fertilizer management effects on leaching of labeled nitrogen for notill corn in field lysimeters // J. Environ. Qual., 1994. Vol. 23, N 2.-С.305-310
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14.
| Jemison John M. Nitrate leaching from nitrogen-fertilized and manured corn measured with zero-tension pan lysimeters // J. Environ. Qual., 1994. Vol. 23, N 2.-С.337-343
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15.
| Yevdokimov I.V. Modeling of N immobilization, mineralization and N plant uptake in arable soil // 11 Int. Symp. Environ. Biogeochem., Salamanca, Sept. 27 - Oct. 1, 1993. -Salamanca, 1993.-С.0
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16.
| MacNeal K.E. Comparison of three early season soil N tests with the pre-sidedress nitrate test // Amer. Soc. Agron. Annu. Meet. 1993. -Cincinnati, 1993.-С.278
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17.
| Fischer Auswirkung der Dungung bei einschichtiger extensiver Dachbegrunung // Gartenamt, 1994. Vol. 43, N 7.-С.464-468
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18.
| Maynard D.G. The influence of hexazinone on carbon dioxide evolution and mineralization of nitrogen, phosphorus and sulfur in a forest soil // Can. J. Soil Sci., 1993. Vol. 73, N 4.-С.433-445
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19.
| Mahler R.L. Evaluation of water potential, fertilizer placement and incubation time on volatilization losses of urea in two northern Idaho soils // Commun. Soil Sci. and Plant Anal., 1994. Vol. 25, N 11-12.-С.1991-2004
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20.
| Patra Ashok K. Transformation of a coal fertilizer ammonium polycarboxylate and potentialities of coal produced nitrification inhibitors // J. Indian Soc. Soil Sci., 1993. Vol. 41, N 1.-С.38-41
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