terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Adsorption of tetraconazole by organic residues and vineyard organically-amended soils 

Adsorption of tetraconazole by organic residues and vineyard organically-amended soils 

Abstract

Spain is the country with the largest wine-producing area in the EU and its productivity is largely controlled applying fungicides. However, residues of these compounds can move and contaminate surface and groundwater. The objective of this work was to evaluate the capacity of bioadsorbents from different origin to adsorb and immobilize tetraconazole by themselves or when applied as organic soil amendment, and to prevent soil and water contamination by this fungicide. The adsorption of tetraconazole by 3 organic residues: spent mushroom substrate (SMS), green compost (GC) and vine pruning sawdust (VP), as well as by vineyard soils unamended and amended individually with these residues at 1.5% (w/w) was evaluated using the batch equilibrium technique. Two vineyard soils from La Rioja were selected (S1-sandy loam, 0.26% OC; and S2-clay loam, 0.69% OC). Freundlich Kf adsorption constants of tetraconazole (3.6-19.2) by unamended and amended soils increased in the order: S1 < S2 < S2+GC < S2+VP < S1+VP ≈ S1+GC < S2+SMS < S1+SMS; and for the residues in the order: GC < VP < SMS. The Kf values of amended soils, especially for SMS-amended soils, were higher than those of unamended soils, due to their higher OC content. The application of organic residues to S1 soil increased its Kf value between 3.7-5.4 times, and that of S2 soil up to 2.7 times. However, the Kf values of S1 soil amended with the different organic residues were higher than those of amended S2 soils, despite their lower OC content. Therefore, physicochemical characteristics of soils different from OC (pH, carbonates, clay content, etc.) may also play an important role on the adsorption of tetraconazole by amended soils as observed for other fungicides.

Acknowledgements: We give thanks to Project TED2021-129962B-C41, funded by MCIN/AEI/10.13039/501100011033/ and the European Union (NextGenerationEU/PRTR).

DOI:

Publication date: October 9, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Asier Barrio1, M. Soledad Andrades2, M. Sonia Rodríguez-Cruz1, Jesús M. Marín-Benito1*

1 Institute of Natural Resources and Agrobiology of Salamanca (IRNASA, CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain.
2 Agriculture and Food Department, University of La Rioja, Madre de Dios 51, 26006 Logroño, Spain.

Contact the author*

Keywords

adsorption, fungicide, vineyard soil, conservation, organic amendment

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Can yeast cells sense other yeasts beyond competition interactions?

The utilization of non-Saccharomyces yeasts in the wine industry has increased significantly in recent years. Alternative species need commonly be employed in combination with Saccharomyces cerevisiae to avoid stuck fermentation, or microbial spoilage. The employment of more than one yeast starter can lead to interactions between different species with an impact on the outcome of wine fermentation. Previous studies[1] demonstrated that S. cerevisiae elicits transcriptional responses with both shared and species-specific features in co-culture with other yeast species.

Read More

Understanding the impact of rising temperatures due to climate change on aromatic compositions in Malbec wines from Mendoza, Argentina

Mendoza is one of Argentina’s most important and outstanding wine regions producing the renowned Malbec wines due to its optimal soil and weather conditions. However, the effects of 21st-century climate change would negatively impact Malbec wines quality. This study investigated the effect of temperature increase and the impact of plant hormone abscisic acid (ABA) used to mitigate the negative effect of temperature increase on Malbec wines aromatic composition through GC-MS. Four treatments were applied on vines at field condition: Control, Control + 3 ºC, ABA and ABA + 3 ºC.

Read More

The characterization of Vitis vinifera L cv. Cabernet sauvignon: the contribution of Ecklonia maxima seaweed extract

Biostimulants and biofertilizers are considered environmentally friendly and cost-effective alternatives to synthetic fertilizers, plant growth regulators and crop improvement products. Broadly, plant biostimulants are expected to improve nutrient use efficiency, tolerance to abiotic stress, quality traits and availability of nutrients in the soil or rhizosphere. Currently, seaweed extracts account for more than 33% of the total plant biostimulant market. Within this category, Ascophyllum nodosum (AN), is the most widely studied and applied in biostimulant formulations.

Read More

Biodiversity and biocontrol ability of Trichoderma natural populations in soil vineyards from Castilla y León region (Spain)

Trichoderma is a microorganism present in many agricultural soils and some of its species could be used as natural biological control agents. In this work, the presence of natural populations of Trichoderma was estimated in soil vineyard and its biocontrol capacity against Phaeoacremonium minimum, one of the main agent causals of grapevine trunk diseases instead of using pesticides. Moreover, physicochemical variables in soil such as pH, organic matter and nutrients were evaluated to determine a possible correlation to natural populations of Trichoderma.

Read More

Influence of irrigation frequency on berry phenolic composition of red grape varieties cultivated in four spanish wine-growing regions

The global warming phenomenon involves the frequency of extreme meteorological events accompanied by a change in rainfall distribution. Irrigation frequency (IF) affects the spatial and temporal soil water distribution but its effects on the phenolic composition of the grape have been scarcely studied. The aim of this work was to evaluate the effects of four deficit irrigation frequencies of 30 % ETo: one irrigation per day (T01), two irrigations per week (T03), one irrigation per week (T07) and one irrigation every two weeks (T15) on berry phenolic composition at harvest.

Read More