Full TGIF Record # 95194
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Web URL(s):https://link.springer.com/article/10.1023%2FB%3APLSO.0000016565.14718.4b
    Last checked: 09/27/2017
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Magid, Jakob; Luxhøi, Jesper; Lyshede, Ole B.
Author Affiliation:Magid and Luxhøi: plant Nutrition and Soil Fertility Laboratory, Department of Agricultural Sciences; Lyshede: Department of Plant Biology, The Royal Veterinary and Agricultural University, Thorvaldsesvej 40, 1871 Frederiksberg C. Denmark
Title:Decomposition of plant residues at low temperatures separates turnover of nitrogen energy rich tissues components in time
Source:Plant and Soil. Vol. 258, No. 1/2, January 2004, p. 351-365.
# of Pages:15
Publishing Information:Dordrecht, Netherlands: Kluwer Academic Publishers
Keywords:TIC Keywords: Decomposition; Plant residues; Air temperature; Nitrogen use; Miscanthus; Vicia villosa; Lolium multiflorum; Trifolium incarnatum; Secale cereale; Electron microscopy; Microbiological soil analysis; Carbon to nitrogen ratio
Cultivar Names:Giganteus
Abstract/Contents:"Carbon and nitrogen loss patterns from stem and leaves from Elephant grass (Miscanthus x ogiformis Honda cv. Giganteus), and five commonly used cover crop species: Hairy vetch (Vicia villosa Roth), Italian ryegrass (Lolium multiflorum L.), Crimson clover (Trifolium incarnatum L.), Rye (Secale cereale L.), and Radish (Raphanus sativus L.) were examined at 3 and 9 °C. The stratified incubation system allowed `dry' recovery of the decomposing plant residues with minimal soil contamination and without loss of soluble substances. The recovered materials were characterized biochemically by light and scanning electron microscopy. When the data was analysed across all treatments and sampling dates, there was no significant effect of temperature on N loss, whereas C loss was significantly affected (P < 0.0001) by temperature. Decomposition at 3 °C led to wider C-to-N ratios in the plant residues. At 3 °C there was no net immobilization of N, whereas at 9 °C net immobilization was strong in the L. multiflorum and M. x ogiformis treatments. The biochemical and microscopic evidence supports that microbial growth and macro-polymer utilization was reduced at 3 °C. It was apparent that the dicot materials leaked substantially more carbon during the early phase of decomposition, whereas in the monocot materials and especially in the M. x ogiformus treatment the microbial growth and substrate utilization must have been contained within the decomposing tissues. Based on this evidence, we propose that the decomposition of intracellular low molecular substances and proteins can be viewed as a process separate from the decomposition of macro-polymers in cell walls. At higher temperatures these processes conicide and thus the distinctiveness is blurred, whereas at low temperatures they may occur more separated in time as well as space due to leaking."
Language:English
References:36
Note:Pictures, color & b/w
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Magid, J., J. Luxhøi, and O. B. Lyshede. 2004. Decomposition of plant residues at low temperatures separates turnover of nitrogen energy rich tissues components in time. Plant Soil. 258(1/2):p. 351-365.
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https://link.springer.com/article/10.1023%2FB%3APLSO.0000016565.14718.4b
    Last checked: 09/27/2017
    Access conditions: Item is within a limited-access website
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