Fecha/hora: 13/05/2024 11:11:13

Biblioteca(s): 	INIA Las Brujas.	
Fecha corriente: 	04/03/2024	
Fecha de la última actualización: 	04/03/2024	
Autoria: 	PUTRA, R.; ISLAM, T.; CIBILS-STEWART, X.; HARTLEY, S.E.; JOHNSON, S.N.	
Afiliación: 	ROCKY PUTRA, Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, Australia; Department of Chemical Ecology, Faculty of Biology, Bielefeld University, Bielefeld, Ger; TARIKUL ISLAM, Hawkesbury Institute for the Environment, Western Sydney Univ., Richmond, NSW, Australia; Dept. Entomology, Fac. Agriculture, Bangladesh Agricultural Univ.,  Bangladesh; Dept. Entomology, Rutgers Univ., New Brunswick, NJ, US.; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, Australia; SUSAN E. HARTLEY, York Environmental Sustainability Institute, Department of Biology, University of York, York, United Kingdom; School of Biosciences, University of Sheffield, Sheffield, United Kingdom; SCOTT N. JOHNSON, Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, Australia.	
Título: 	Agroecological consequences of silicon supplementation for a legume cultivation: Two-year-long field observations.	
Año de publicación: 	2024	
Fuente/Imprenta: 	Agriculture, Ecosystems and Environment. 2024, Volume 365, Article 108893. https://doi.org/10.1016/j.agee.2024.108893 -- OPEN ACCESS.	
ISSN: 	0167-8809	
DOI: 	10.1016/j.agee.2024.108893	
Idioma: 	Inglés	
Notas: 	Article history: Received 25 October 2023; Revised 28 December 2023; Accepted 12 January 2024; Available online 7 February 2024; Version of Record 7 February 2024. -- Correspondence: Putra, R.; Department of Chemical Ecology, Faculty of Biology, Bielefeld University, Bielefeld, Germany; email:rocky.putra@uni-bielefeld.de -- Document type: Article - Hybrid Gold Open Access. -- Funding: Rocky Putra is the holder of a scholarship as part of an Australian Research Council Future Fellowship ( FT170100342 ) awarded to S.N.J., the Australian Steel Mill Services (ASMS) and the University of York in the UK. -- Supplementary material:	
Contenido: 	ABSTRACT.- Supplementing plants with silicon (Si) often improves plant productivity and resilience to biotic and abiotic stresses, but this is mostly reported in highly controlled experimental environments. The ecological consequences of Si supplementation, including environmental benefits and potential risks, are therefore poorly understood and require field-scale evaluation of how Si supplementation affects the wider ecosystem, such as invertebrate communities and soil physicochemical properties. We conducted the first field assessment of how a legume (lucerne; Medicago sativa) agroecosystem and its associated invertebrate communities responded to two levels of Si supplementation (calcium silicate slag), over two years. We quantified seasonal changes in the abundance and diversity of aboveground arthropod communities, crop yield, elemental and nutritional chemistry, and soil pH as well as soil chemistry. The highest rate of Si supplementation increased bioavailable Si in the soil by 181% and soil pH from 5.2 to 6.3, relative to untreated plots, with a significant positive correlation between increased soil bioavailable Si and pH. Si supplementation led to an increase in crop yield by up to 52%; however, the magnitude varied with season. Foliar concentrations of Si tended to increase with Si supplementation, but this increase was marginally significant, potentially due to a dilution effect of higher shoot biomass. Si supplementation did not affect concentrations of most soil elements we quantified or forage quality of lucerne. We recorded over 13,600 arthropods; Si supplementation led to a shift in community structure and overall increased diversity of arthropod functional groups. Notably, the saprophytic fly family, Lauxaniidae was more abundant on Si-supplemented plots compared to untreated plots, potentially due to increased plant turnover. These results indicate that silicon supplementation of a legume agroecosystem, using a by-product of steel production, provides productivity benefits that outweigh some possible detrimental impacts on the ecosystem (i.e. decreased arthropod abundances, toxic metal contamination or reduced forage quality), which we did not detect in our current field study. This management intervention enhances crop yield, so could reduce the need for conventional fertilisers as well as changing soil pH to be more beneficial to crops and some arthropod groups. © 2024 The Authors	
Palabras-Clave: 	Agricultural ecosystem; Agroecology; Arthropod; Calcium silicate slag; Forage crop; Medicago.	
Categoría del tema: 	F01 Cultivo	
URL: 	https://www.sciencedirect.com/science/article/pii/S0167880924000112/pdf	
Registro original: 	INIA Las Brujas (LB)	
Ejemplares: 	LB - (103840-1) - PXI - AP - DD - Agriculture Ecosyst. Environment/2024 -  -  - DIS