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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 2023-05-17, 20:42 authored by Cozzolino, D, Cynkar, WU, Robert Dambergs, Shah, N, Smith, P
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.

History

Publication title

Communications in Soil Science and Plant Analysis

Volume

44

Issue

10

Pagination

1610-1619

ISSN

0010-3624

Department/School

Tasmanian Institute of Agriculture (TIA)

Publisher

Taylor & Francis Inc

Place of publication

United States

Rights statement

Copyright 2013 Taylor & Francis

Repository Status

  • Restricted

Socio-economic Objectives

Wine grapes

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