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In situ measurement of soil chemical composition by near-infrared spectroscopy: A tool toward sustainable vineyard management

journal contribution
posted on 18.09.2018, 00:00 by Daniel Cozzolino, WU Cynkar, RG Dambergs, N Shah, P Smith
This study evaluated an in-field near-infrared (NIR) instrument to predict the contents of total nitrogen (TN), organic carbon (OC), potassium (K), sulfur (S), phosphorus (P), pH, and electric conductivity (EC) in soil vineyard samples (n = 70) sourced from three wine regions of Australia. Samples were analyzed using a portable NIR spectrophotometer (ASD FieldSpec III, 350-1800 nm). Partial least squares (PLS) regressions yield a coefficient of determination in calibration (R2) and a standard error in cross validation (SECV) of 0.74 (0.03) for TN, 0.92 (2.19) for S, 0.81 (0.42) for OC, 0.70 (109.2) for K, 0.84 (0.03) for EC, 0.83 (0.44) for pH, and 0.69 (24.6) for P, respectively. This study showed that it is possible to measure soil chemical properties in the vineyard, and the main advantages of this approach will be the speed, low cost, and ability to better manage and monitor soil fertility. © 2013 Copyright Taylor and Francis Group, LLC.

Funding

Category 2 - Other Public Sector Grants Category

History

Volume

44

Issue

10

Start Page

1610

End Page

1619

Number of Pages

10

eISSN

1532-2416

ISSN

0010-3624

Publisher

Taylor & Francis Inc.

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

University of Adelaide; Australian Wine Research Institute; University of Tasmania

Era Eligible

Yes

Journal

Communications in Soil Science and Plant Analysis

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