Bolinder, Martin and Kätterer, Thomas and Poeplau, Christopher and Börjesson, Gunnar and Parent, Leon E.
(2015).
Net primary productivity and below-ground crop residue inputs for root crops: Potato (Solanum tuberosum L.) and sugar beet (Beta vulgaris L.).
Canadian Journal of Soil Science. 95
:2
, 87-93
[Research article]
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Official URL: http://dx.doi.org/10.4141/CJSS-2014-091
Abstract
Root crops are significant in agro-ecosystems of temperate climates. However, the amounts of crop residues for these crop types are not well documented and they need to be accounted for in the modeling of soil organic carbon dynamics. Our objective was to review field measurements of root biomass left in the soil as crop residues at harvest for potato and sugar beet. We considered estimates for crop residue inputs as root biomass presented in the literature and some unpublished results. Our analysis showed that compared to, for example, cereals, the contribution of below-ground net primary productivity (NPP) to crop residues is at least two to three times lower for root crops. Indeed, the field measurements indicated that root biomass for topsoils only represents on average 25 to 30 g dry matter (DM) m(-2) yr(-1). Other estimates, albeit variable and region-specific, tended to be higher. We suggest relative plant DM allocation coefficients for agronomic yield (R-P), above-ground biomass (R-S) and root biomass (R-R) components, expressed as a proportion of total NPP. These coefficients, representative for temperate climates (0.739:0.236:0.025 for potato and 0.626:0.357:0.017 for sugar beet), should be useful in the modeling of agro-ecosystems that include root crops.
Authors/Creators: | Bolinder, Martin and Kätterer, Thomas and Poeplau, Christopher and Börjesson, Gunnar and Parent, Leon E. | ||||
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Title: | Net primary productivity and below-ground crop residue inputs for root crops: Potato (Solanum tuberosum L.) and sugar beet (Beta vulgaris L.) | ||||
Alternative abstract: |
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Series Name/Journal: | Canadian Journal of Soil Science | ||||
Year of publishing : | 2015 | ||||
Volume: | 95 | ||||
Number: | 2 | ||||
Page range: | 87-93 | ||||
Number of Pages: | 7 | ||||
Publisher: | Agricultural Institute of Canada | ||||
ISSN: | 0008-4271 | ||||
Language: | English | ||||
Publication Type: | Research article | ||||
Refereed: | Yes | ||||
Article category: | Scientific peer reviewed | ||||
Version: | Published version | ||||
Full Text Status: | Public | ||||
Agris subject categories.: | P Natural resources > P30 Soil science and management | ||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science | ||||
Agrovoc terms: | root crops, crop residues, soil organic matter, carbon, net primary productivity, potatoes, sugarbeet | ||||
Keywords: | Roots, soil organic carbon, crop residues, agro-ecosystems, root crops | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-2879 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2879 | ||||
Additional ID: |
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ID Code: | 12550 | ||||
Faculty: | NJ - Fakulteten för naturresurser och jordbruksvetenskap | ||||
Department: | (NL, NJ) > Dept. of Soil and Environment (S) > Dept. of Soil and Environment (NL, NJ) > Dept. of Ecology (S) > Dept. of Ecology | ||||
Deposited By: | SLUpub Connector | ||||
Deposited On: | 28 Sep 2015 07:54 | ||||
Metadata Last Modified: | 09 Sep 2020 14:17 |
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