Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita
Improving fertility of marginal soils for the sustainable production of biomass is a strategy for reducing land use conflicts between food and energy crops. Digestates can be used as fertilizer and for soil amelioration. In order to promote plant growth and reduce potential adverse effects on roots...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-07-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fpls.2018.01095/full |
| _version_ | 1811236546846654464 |
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| author | Moritz Nabel Silvia D. Schrey Hendrik Poorter Robert Koller Kerstin A. Nagel Vicky M. Temperton Charlotte C. Dietrich Christoph Briese Nicolai D. Jablonowski |
| author_facet | Moritz Nabel Silvia D. Schrey Hendrik Poorter Robert Koller Kerstin A. Nagel Vicky M. Temperton Charlotte C. Dietrich Christoph Briese Nicolai D. Jablonowski |
| author_sort | Moritz Nabel |
| collection | DOAJ |
| description | Improving fertility of marginal soils for the sustainable production of biomass is a strategy for reducing land use conflicts between food and energy crops. Digestates can be used as fertilizer and for soil amelioration. In order to promote plant growth and reduce potential adverse effects on roots because of broadcast digestate fertilization, we propose to apply local digestate depots placed into the rhizosphere. We grew Sida hermaphrodita in large mesocosms outdoors for three growing seasons and in rhizotrons in the greenhouse for 3 months both filled with marginal substrate, including multiple sampling dates. We compared digestate broadcast application with digestate depot fertilization and a mineral fertilizer control. We show that depot fertilization promotes a deep reaching root system of S. hermaphrodita seedlings followed by the formation of a dense root cluster around the depot-fertilized zone, resulting in a fivefold increased biomass yield. Temporal adverse effects on root growth were linked to high initial concentrations of ammonium and nitrite in the rhizosphere in either fertilizer application, followed by a high biomass increase after its microbial conversion to nitrate. We conclude that digestate depot fertilization can contribute to an improved cultivation of perennial energy-crops on marginal soils. |
| first_indexed | 2024-04-12T12:10:03Z |
| format | Article |
| id | doaj.art-55dd243a1f3148f1a40c3d79ed95c7d5 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-12T12:10:03Z |
| publishDate | 2018-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-55dd243a1f3148f1a40c3d79ed95c7d52022-12-22T03:33:36ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2018-07-01910.3389/fpls.2018.01095365287Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphroditaMoritz Nabel0Silvia D. Schrey1Hendrik Poorter2Robert Koller3Kerstin A. Nagel4Vicky M. Temperton5Charlotte C. Dietrich6Christoph Briese7Nicolai D. Jablonowski8Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Ecology, Leuphana University Lüneburg, Lüneburg, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyInstitute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, GermanyImproving fertility of marginal soils for the sustainable production of biomass is a strategy for reducing land use conflicts between food and energy crops. Digestates can be used as fertilizer and for soil amelioration. In order to promote plant growth and reduce potential adverse effects on roots because of broadcast digestate fertilization, we propose to apply local digestate depots placed into the rhizosphere. We grew Sida hermaphrodita in large mesocosms outdoors for three growing seasons and in rhizotrons in the greenhouse for 3 months both filled with marginal substrate, including multiple sampling dates. We compared digestate broadcast application with digestate depot fertilization and a mineral fertilizer control. We show that depot fertilization promotes a deep reaching root system of S. hermaphrodita seedlings followed by the formation of a dense root cluster around the depot-fertilized zone, resulting in a fivefold increased biomass yield. Temporal adverse effects on root growth were linked to high initial concentrations of ammonium and nitrite in the rhizosphere in either fertilizer application, followed by a high biomass increase after its microbial conversion to nitrate. We conclude that digestate depot fertilization can contribute to an improved cultivation of perennial energy-crops on marginal soils.https://www.frontiersin.org/article/10.3389/fpls.2018.01095/fulldigestate fertilizationlocalized fertilizer placementmarginal substrateperennial plantsrhizotronroot plasticity |
| spellingShingle | Moritz Nabel Silvia D. Schrey Hendrik Poorter Robert Koller Kerstin A. Nagel Vicky M. Temperton Charlotte C. Dietrich Christoph Briese Nicolai D. Jablonowski Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita Frontiers in Plant Science digestate fertilization localized fertilizer placement marginal substrate perennial plants rhizotron root plasticity |
| title | Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita |
| title_full | Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita |
| title_fullStr | Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita |
| title_full_unstemmed | Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita |
| title_short | Coming Late for Dinner: Localized Digestate Depot Fertilization for Extensive Cultivation of Marginal Soil With Sida hermaphrodita |
| title_sort | coming late for dinner localized digestate depot fertilization for extensive cultivation of marginal soil with sida hermaphrodita |
| topic | digestate fertilization localized fertilizer placement marginal substrate perennial plants rhizotron root plasticity |
| url | https://www.frontiersin.org/article/10.3389/fpls.2018.01095/full |
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