Variability Of Soil Chemistry Following
Irrigation With Recycled Municipal Effluent:
A Great Western Vineyard Case Study
Author(s)
P. M. Maher, K. M. Hermon, G. Allinson, F. Stagnitti
& R. Armstrong
Abstract
In areas of Australia where viticultural operations have been limited by lack of
an acceptable irrigation water source, considerable expansion has occurred
through the use of recycled wastewater. Despite this rapid expansion, little is
known of the potential impacts of the water’s chemical constituents on soil
properties, or the long-term sustainability of the vineyards using the water. In
order to establish the impacts of drip irrigated recycled wastewater on a vineyard
in Great Western, Australia, a study comparing the soils from the vineyard
inter-row and row area was undertaken. Chemical and physical properties of the
soil with varying distances from the drip emitter were also investigated. During
the irrigation season, significant differences between the inter-row and row area
were found for several chemical parameters including pH(1:5soil/water) (P<0.001),
electrical conductivity (EC1:5) (P<0.001), water-soluble sodium (WS Na+)
(P<0.001), and water-soluble chloride (WS Cl-) (P<0.001). This paper will
discuss differences observed between soil properties of the inter-row and vine
row area, as well as the spatial distribution of solutes under the drip emitter.
Keywords: wastewater irrigation, soil solute distribution, vineyard
sustainability, irrigation management.
1 Introduction
Grape production in Australia is increasingly becoming a significant part of the
agricultural sector. Rapid growth of the industry in recent years has seen the
Keywords
wastewater irrigation, soil solute distribution, vineyard
sustainability, irrigation management.
Related Book
Other papers in this volume
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