Limited effects of crop foliar Si fertilization on a marginal soil under a future climate scenario.
| Autor: | Rineau F; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Groh J; Institute of Crop Science and Resource Conservation - Soil Science and Soil Ecology, University of Bonn, Bonn, Germany.; Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany.; Research Area 1 'Landscape Functioning,' Leibniz Centre for Agricultural Landscape Research (ZALF), Müncheberg, Germany., Claes J; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Grosjean K; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Mench M; Univ. Bordeaux, INRAE, Biogeco, Bat B2, Allée G. St-Hilaire, F-33615 Pessac cedex, France., Moreno-Druet M; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Povilaitis V; Lithuanian Research Centre for Agriculture and Forestry, Akademija, LT-58344, Kedainiai distr. Lithuania., Pütz T; Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany., Rutkowska B; Warsaw University of Life Sciences - SGGW, 02-787 Warsaw, Poland., Schröder P; Research Unit Environmental Simulation, Helmholtz Center for Environmental Health, German Research Center for Environmental Health, Neuherberg, Germany., Soudzilovskaia NA; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Swinnen X; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Szulc W; Warsaw University of Life Sciences - SGGW, 02-787 Warsaw, Poland., Thijs S; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Vandenborght J; Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany., Vangronsveld J; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Vereecken H; Institute of Bio- and Geoscience (IBG-3, Agrosphere), Forschungszentrum Jülich GmbH, Jülich, Germany., Verhaege K; Environmental Biology, Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium., Žydelis R; Lithuanian Research Centre for Agriculture and Forestry, Akademija, LT-58344, Kedainiai distr. Lithuania., Loit E; Estonian University of Life Sciences, Chair of Field Crops and Plant Biology, 51006 Tartu, Estonia. |
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| Jazyk: | angličtina |
| Zdroj: | Heliyon [Heliyon] 2023 Dec 18; Vol. 10 (1), pp. e23882. Date of Electronic Publication: 2023 Dec 18 (Print Publication: 2024). |
| DOI: | 10.1016/j.heliyon.2023.e23882 |
| Abstrakt: | Growing crops on marginal lands is a promising solution to alleviate the increasing pressure on agricultural land in Europe. Such crops will however be at the same time exposed to increased drought and pathogen prevalence, on already challenging soil conditions. Some sustainable practices, such as Silicon (Si) foliar fertilization, have been proposed to alleviate these two stress factors, but have not been tested under controlled, future climate conditions. We hypothesized that Si foliar fertilization would be beneficial for crops under future climate, and would have cascading beneficial effects on ecosystem processes, as many of them are directly dependent on plant health. We tested this hypothesis by exposing spring barley growing on marginal soil macrocosms (three with, three without Si treatment) to 2070 climate projections in an ecotron facility. Using the high-capacity monitoring of the ecotron, we estimated C, water, and N budgets of every macrocosm. Additionally, we measured crop yield, the biomass of each plant organ, and characterized bacterial communities using metabarcoding. Despite being exposed to water stress conditions, plants did not produce more biomass with the foliar Si fertilization, whatever the organ considered. Evapotranspiration (ET) was unaffected, as well as water quality and bacterial communities. However, in the 10-day period following two of the three Si applications, we measured a significant increase in C sequestration, when climate conditions where significantly drier, while ET remained the same. We interpreted these results as a less significant effect of Si treatment than expected as compared with literature, which could be explained by the high CO Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2023 The Authors.) |
| Databáze: | MEDLINE |
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