Terroir 2010 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2010 9 Geology and Soil: effects on wine quality (T2010) 9 On-the-go resistivity sensors employment to support soil survey for precision viticulture

On-the-go resistivity sensors employment to support soil survey for precision viticulture

Abstract

There is an increasing need in agriculture to adopt site-specific management (precision farming) because of economic and environmental pressures. Geophysical on-the-go sensors, such as the ARP (Automatic Resistivity Profiling) system, can effectively support soil survey by optimizing sampling density according to the spatial variability of apparent electrical resistivity (ER).
The aim of this work was to test the sensitivity of the ARP methodology in supporting soil survey for precision viticulture. In particular, an optimization procedure for coupled geoelectrical and soil surveys is illustrated.
The research was carried out in a vineyard located in Tuscany (central Italy) affected by low yield due to soil salinity; the investigation was simultaneously conducted by soil survey and resistivity measurements. The ARP method consists in the electric current injection into the ground and in the continuous measure of the resulting potential, simultaneously providing three georeferenced values of ER related to 50, 100 and 170 cm depths for each point.
Forty-nine soil samples were taken at 10-30 cm depth and analyzed for moisture, particle size distribution and electrical conductivity. The best correlation (R2 = 0.609; P <0.01) was obtained between clay content and ER referred to the 0-50 cm depth (ER50).
The evaluation of the density reduction effect for both ARP and soil survey was expressed in terms of ER50 and clay predictability. Doubling the ARP swaths width (12 m) the ER50 accuracy was substantially in agreement with that obtained for the highest ARP survey density (22 swaths 6 m spaced); the further width doubling (24 m) provided a moderate accuracy. With regard to clay content prediction k accuracy values ranged between 0.87 and 0.49 for the 22 swaths/25 soil samples and 10 swaths/12 soil samples combination, respectively.

Download the PDF

DOI:

Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

M.C. Andrenelli, E.A.C. Costantini, S. Pellegrini, R. Perria, and N. Vignozzi

CRA-ABP- Centro per l’Agrobiologia e la Pedologia, Piazza M. D’Azeglio, 30 50121, Firenze, Italy

Contact the author

Keywords

ARP, ER, accuracy, precision viticulture, GIS, clay

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Validation of a high-throughput method for the quantification of volatile carbonyl compounds in wine and its use in accelerated ageing experiments

the aim of this study was the optimization and validation of a robust and comprehensive method for the determination of volatile carbonyl compounds (VCCs) in wines
Read More

Towards the definition of a detailed transcriptomic map of grape berry development

In the last years the application of genomic tools to the analysis of gene expression during grape berry development generated a huge amount of transcriptomic data

Read More

CONSUMER PERCEPTION OF INTERSPECIFIC HYBRID RED WINE COLOR IN RELATION TO ANTHOCYANIN PROFILE AND CHEMICAL COLOR PARAMETERS

Interspecific hybrid winegrapes are of growing interest in the context of climate change based on their disease resistance and cold hardiness. In addition to a need for increased understanding of their chemical composition, there is little empirical evidence on the consumer perception of non-vinifera wine. Phenolic compounds, and particularly color, play an important organoleptic and quality determination role in wine, but can vary significantly in interspecific hybrid wines compared to wines produced from Vitis vinifera cultivars [1, 2, 3]. Anecdotally, the variation in anthocyanin species, interactions, and concentrations in interspecific hybrids could result in a variance from“vinifera-like” wine color.

Read More

Development of a standardized method for metabolite analysis by NMR to assess wine authenticity

The wine sector generates a considerable amount of wealth but is facing a growing problem of fraud. Wine counterfeiting is one of the oldest and most common cases of food fraud worldwide. Therefore, the authenticity and traceability of wine are major concerns for both the industry and consumers. To address these issues, robust and reliable analysis and control methods are necessary. Several methods have been developed, ranging from simple organoleptic tests to more advanced methodologies such as isotopic techniques or residual radioactivity measurements.

Read More

AGING PATTERNS OF VARIETAL VOLATILE PROFILES OF WHITE WINES: A CASE STUDY ON 18 ITALIAN VARIETAL WHITE WINES

During wine aging many compositional changes take place. In particular, aroma undergoes dramatic modifications through a wide range of reactions that to date are only partly understood. Italy owns one of the largest ampelographic heritages worldwide, with over three-hundred different varieties. Among these, many white grapes are employed for the production of dry still white wines. Some of these wines are consumed young while others are more prone to aging. For many of these wines, the aging patterns related to volatile composition are still unknown.

Read More