Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation
This study was undertaken in order to test whether the development of nodule density over the vegetation period is different in lucerne stands grown for 1, 2 or 3 years continuously. For rapidly assessing nodule density in the field, a modified profile wall method was applied. Nodules were counted o...
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Format: | Article |
Language: | English |
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Czech Academy of Agricultural Sciences
2012-09-01
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Series: | Plant, Soil and Environment |
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Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201209-0006_nodulation-of-lucerne-medicago-sativa-l-roots-depth-distribution-and-temporal-variation.php |
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author | F. Li T. Kautz R. Pude U. Köpke |
author_facet | F. Li T. Kautz R. Pude U. Köpke |
author_sort | F. Li |
collection | DOAJ |
description | This study was undertaken in order to test whether the development of nodule density over the vegetation period is different in lucerne stands grown for 1, 2 or 3 years continuously. For rapidly assessing nodule density in the field, a modified profile wall method was applied. Nodules were counted on a vertical profile wall, after spraying away a 2 cm layer of soil. For validating this method nodule density was determined on roots washed from monolith samples. Field data indicate that there is a shift of nodulation towards deeper soil layers with increasing maturity of lucerne stands. In 1-year lucerne nodulation was limited virtually to the top 15 cm of soil. In the 15-30 cm soil layer and in the subsoil (30-80 cm), nodule density increased with the cropping duration (1 year < 2 years < 3 years). Temporal decreases in nodule density during the vegetation period associated with dry spells were more pronounced for 2-years as compared with 3-years lucerne. |
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institution | Directory Open Access Journal |
issn | 1214-1178 1805-9368 |
language | English |
last_indexed | 2024-04-10T08:11:25Z |
publishDate | 2012-09-01 |
publisher | Czech Academy of Agricultural Sciences |
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series | Plant, Soil and Environment |
spelling | doaj.art-f452111afe44450bae06d74d396135d82023-02-23T03:45:52ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682012-09-0158942442810.17221/314/2012-PSEpse-201209-0006Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variationF. Li0T. Kautz1R. Pude2U. Köpke3Institute of Organic Agriculture, University of Bonn, Bonn, GermanyInstitute of Organic Agriculture, University of Bonn, Bonn, GermanyResearch Center Campus Klein-Altendorf, Rheinbach, GermanyInstitute of Organic Agriculture, University of Bonn, Bonn, GermanyThis study was undertaken in order to test whether the development of nodule density over the vegetation period is different in lucerne stands grown for 1, 2 or 3 years continuously. For rapidly assessing nodule density in the field, a modified profile wall method was applied. Nodules were counted on a vertical profile wall, after spraying away a 2 cm layer of soil. For validating this method nodule density was determined on roots washed from monolith samples. Field data indicate that there is a shift of nodulation towards deeper soil layers with increasing maturity of lucerne stands. In 1-year lucerne nodulation was limited virtually to the top 15 cm of soil. In the 15-30 cm soil layer and in the subsoil (30-80 cm), nodule density increased with the cropping duration (1 year < 2 years < 3 years). Temporal decreases in nodule density during the vegetation period associated with dry spells were more pronounced for 2-years as compared with 3-years lucerne.https://pse.agriculturejournals.cz/artkey/pse-201209-0006_nodulation-of-lucerne-medicago-sativa-l-roots-depth-distribution-and-temporal-variation.phpalfalfaperennial cultivationprofile wallsoil monolithsubsoil |
spellingShingle | F. Li T. Kautz R. Pude U. Köpke Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation Plant, Soil and Environment alfalfa perennial cultivation profile wall soil monolith subsoil |
title | Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation |
title_full | Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation |
title_fullStr | Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation |
title_full_unstemmed | Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation |
title_short | Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation |
title_sort | nodulation of lucerne medicago sativa l roots depth distribution and temporal variation |
topic | alfalfa perennial cultivation profile wall soil monolith subsoil |
url | https://pse.agriculturejournals.cz/artkey/pse-201209-0006_nodulation-of-lucerne-medicago-sativa-l-roots-depth-distribution-and-temporal-variation.php |
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