Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth
Weed suppression of cover crops is a result of competition for light, space, water and nutrients and the release of allelochemicals in the soil. Two laboratory and greenhouse experiments were conducted to analyse biochemical effects of extracts and mulches of Fagopyrum tataricum (L.) Gaertn., Raphan...
| Main Authors: | , |
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| Format: | Article |
| Language: | deu |
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Julius Kühn-Institut
2016-02-01
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| Series: | Julius-Kühn-Archiv |
| Subjects: | |
| Online Access: | http://pub.jki.bund.de/index.php/JKA/article/view/6198/5882 |
| _version_ | 1819209027279650816 |
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| author | Sturm, Domonic Johannes Gerhards, Roland |
| author_facet | Sturm, Domonic Johannes Gerhards, Roland |
| author_sort | Sturm, Domonic Johannes |
| collection | DOAJ |
| description | Weed suppression of cover crops is a result of competition for light, space, water and nutrients and the release of allelochemicals in the soil. Two laboratory and greenhouse experiments were conducted to analyse biochemical effects of extracts and mulches of Fagopyrum tataricum (L.) Gaertn., Raphanus sativus var. oleiformis Pers. and a cover crop mixture on germination and plant growth of the crop plants maize (Zea mays L.) and sugar beet (Beta vulgaris ssp. vulgaris var. altissima Döll.) and the weeds Chenopodium album L., Matricaria chamomilla L. and Stellaria media (L.) Vill.. In the first experiment, aqueous cover crop extracts were applied on crop and weed seeds in germination assays. Germination rate, mean germination time and root length of crops and weeds were measured. In experiment 2, the influence of cover crop mulch on germination rate and dry weight of the test plants was determined after a period of 21 days. Significant reductions of the root length for all test plants were observed in experiment
1. Additionally, mean germination time was extended for crops and weeds by all cover crops. Germination rate and dry matter of crops and weeds were decreased significantly in experiment 2 compared to the untreated control. Root length, germination rate and mean germination time in germination tests in experiment 1 were found to be correlated with biomass of crops and weeds in experiment
2. This work reveals the important role of biochemical effects on weed suppression by cover crops. |
| first_indexed | 2024-12-23T05:48:45Z |
| format | Article |
| id | doaj.art-f51ea6a4cadc4249bd7bfc6105d63b25 |
| institution | Directory Open Access Journal |
| issn | 1868-9892 1868-9892 |
| language | deu |
| last_indexed | 2024-12-23T05:48:45Z |
| publishDate | 2016-02-01 |
| publisher | Julius Kühn-Institut |
| record_format | Article |
| series | Julius-Kühn-Archiv |
| spelling | doaj.art-f51ea6a4cadc4249bd7bfc6105d63b252022-12-21T17:58:01ZdeuJulius Kühn-InstitutJulius-Kühn-Archiv1868-98921868-98922016-02-0145242443010.5073/jka.2016.452.056Comparison of different cover crop mulches and extracts on inhibition of crop and weed growthSturm, Domonic Johannes0Gerhards, Roland1Department of Weed Science, Institute of Phytomedicine, University of Hohenheim, Stuttgart, GermanyDepartment of Weed Science, Institute of Phytomedicine, University of Hohenheim, Stuttgart, GermanyWeed suppression of cover crops is a result of competition for light, space, water and nutrients and the release of allelochemicals in the soil. Two laboratory and greenhouse experiments were conducted to analyse biochemical effects of extracts and mulches of Fagopyrum tataricum (L.) Gaertn., Raphanus sativus var. oleiformis Pers. and a cover crop mixture on germination and plant growth of the crop plants maize (Zea mays L.) and sugar beet (Beta vulgaris ssp. vulgaris var. altissima Döll.) and the weeds Chenopodium album L., Matricaria chamomilla L. and Stellaria media (L.) Vill.. In the first experiment, aqueous cover crop extracts were applied on crop and weed seeds in germination assays. Germination rate, mean germination time and root length of crops and weeds were measured. In experiment 2, the influence of cover crop mulch on germination rate and dry weight of the test plants was determined after a period of 21 days. Significant reductions of the root length for all test plants were observed in experiment 1. Additionally, mean germination time was extended for crops and weeds by all cover crops. Germination rate and dry matter of crops and weeds were decreased significantly in experiment 2 compared to the untreated control. Root length, germination rate and mean germination time in germination tests in experiment 1 were found to be correlated with biomass of crops and weeds in experiment 2. This work reveals the important role of biochemical effects on weed suppression by cover crops.http://pub.jki.bund.de/index.php/JKA/article/view/6198/5882allelopathycover cropsgermination testsmulchweed suppression |
| spellingShingle | Sturm, Domonic Johannes Gerhards, Roland Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth Julius-Kühn-Archiv allelopathy cover crops germination tests mulch weed suppression |
| title | Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth |
| title_full | Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth |
| title_fullStr | Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth |
| title_full_unstemmed | Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth |
| title_short | Comparison of different cover crop mulches and extracts on inhibition of crop and weed growth |
| title_sort | comparison of different cover crop mulches and extracts on inhibition of crop and weed growth |
| topic | allelopathy cover crops germination tests mulch weed suppression |
| url | http://pub.jki.bund.de/index.php/JKA/article/view/6198/5882 |
| work_keys_str_mv | AT sturmdomonicjohannes comparisonofdifferentcovercropmulchesandextractsoninhibitionofcropandweedgrowth AT gerhardsroland comparisonofdifferentcovercropmulchesandextractsoninhibitionofcropandweedgrowth |