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United States Department of Agriculture

Agricultural Research Service

Research Project: Alternative Irrigation Water Sources for Sustainable Nursery Production and Urban Landscapes

Location: Application Technology Research Unit

Project Number: 3607-21000-017-14
Project Type: Specific Cooperative Agreement

Start Date: Aug 15, 2014
End Date: Jul 14, 2015

Objective:
To evaluate the short- and long-term effects of irrigation with reclaimed water and graywater on nursery & greenhouse crops and landscape plants as compared to municipal potable or high-quality water sources. It is hypothesized that continued irrigation use of these wastewater-based sources significantly impacts the chemical, physical and biological properties of plants, substrates and soils. It is further hypothesized that selection of suitable salt-tolerant plant materials and irrigation and fertilization best management practices can allow for a successful and sustainable use of the alternative irrigation waters in the production of nursery/floriculture crops and management of urban landscapes.

Approach:
Controlled irrigation and survey (sample collection & analyses) studies will be conducted to evaluate the effects of reclaimed and graywater irrigation on nursery/greenhouse crops and landscape plants and selected properties of the substrates and soils where they are growing. This will include comparative assessments of the status and dynamics of selected chemical, physical, biological and aesthetic properties of these crops, plants and soils irrigated short- and long-term with graywater, reclaimed water and conventional (high quality & potable) waters.

Last Modified: 9/20/2014
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