Abstract
Plant root exudates were shown to accelerate the processes of C and N transformation in the soil. The activity of extracellular enzymes in the rhizosphere depended on both the composition of root exudates and the addition of organic C to the soil. Nitrogen from root exudates was found in all fractions of soil organic matter and microbial biomass.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Blagodatsky S A, Blagodatskaya E V, Gorbenko A Yu and Panikov N S 1987 Rehydration technique for microbial biomass determination in soil. Pochvovedenie 4, 64–73 (in Russian).
Bochkarev A N and Kudeyarov V N 1982 Determination of nitrates in soil, water and plants. Khim. Sel’sk. Khoz. 20, 49–51 (in Russian).
Bottner P, Salih Z and Billes G 1988 Root activity and carbon metabolism in soil. Biol. Fertil. Soils. 7, 71–78.
Broadbent F E and Norman A J 1946 Some factors affecting the availability of the organic nitrogen in soil. Soil Sci. Soc. Amer. Proc. 11, 264–267.
Fog K 1988 The effect of added nitrogen on the rate of decomposition of organic matter. Biol. Rev. 63, 433–462.
Hale M G and Moore L D 1979 Factors affecting root exudation. II: 1970-1978. Adv. Agron. 31, 93–124.
Helal H M and Sauerbeck D 1985 Umsatz von 14C-markierten Pflanzenresten und Veranderung der mikrobillen Biomasse im Boden unter dem Einfluss von Maiswurzeln. Landwirtsch. Forsch. 38, 104–109.
He X T, Stevenson F J, Mulvaney R L and Kelley K R 1988 Incorporation of newly immobilized N into stable organic forms of soil. Soil Biol. Biochem. 20, 75–81.
Huntjens J L M 1971 The influence of living plants on mineralization and immobilisation of nitrogen. Plant & Soil 35, 77–94.
Kasparov S V, Panikov N S and Minko O I 1985 Membrane sampling device for analysis of soil air gas composition. Pochvovedenie 11, 145–150 (in Russian).
Khaziev F Kh 1990 Methods of soil enzymology (in Russian). Nauka, Moscow. 188 p.
Krasilnikov N A 1958 Soil micro-organisms, higher plants (in Russian). Acad. Sci. USSR Publ., Moscow. 145p.
Lambers H 1987 Growth, respiration, exudation and symbiotic associations: The fate of carbon translocated to the roots. In Root Development and function. Eds. P J Gregory, J V Lake and D A Rose. pp. 125–145. Cambridge University Press, Cambridge.
Larionova A A, Koteva Zh, Rosanova L N and Kudeyarov V N 1994 Effect of nitrogen fertilisers on cellulose decomposition as related to C/N ratio in soil (in Russian). Pochvovedenie 9, 55–60.
Mergel A, Timchenko A V, Leoshko V A and Kudeyarov V N 1992 Participation of nitrogen released from roots in the nitrogen transformation in soil and in the process of formation of soil extranitrogen. Agrokhimiya 9, 3–13 (in Russian).
Panikov N S, Gorbenko TA Yu and Svetlov S V 1985 A way for determining total water-soluble organic matter in soil. USSR Authors Certificate N1318909 (in Russian).
Robinson D, Griffiths B, Ritz K and Wheatley R 1989 Root-induced nitrogen mineralization: A theoretical analysis. Plant & Soil 117, 185–193.
Sallih Z and Bottner P 1987 Effect of wheat (Triticum aestivum) roots on mineralization rates of soil organic matter. Biol. Fertil. Soils 7, 67–70.
Sparling G P, Cheshrie M V and Mundie C M 1982 Effect of barley plants on the decomposition of14C-labelled soil organic matter. J. Soil Sci. 33, 89–100.
Vancura V 1967 Root exudates of plants III: Effect of temperatures and “cold shock” on the exudation of various compounds from seeds and seedlings of maize and cucumber. Plant & Soil 27, 319–328.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Mergel, A., Timchenko, A., Kudeyarov, V. (1998). Role of plant root exudates in soil carbon and nitrogen transformation. In: Box, J.E. (eds) Root Demographics and Their Efficiencies in Sustainable Agriculture, Grasslands and Forest Ecosystems. Developments in Plant and Soil Sciences, vol 82. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5270-9_3
Download citation
DOI: https://doi.org/10.1007/978-94-011-5270-9_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6218-3
Online ISBN: 978-94-011-5270-9
eBook Packages: Springer Book Archive