8 Jan 2019
Global Warming Potential, Variable Costs, and Water Use of a Model Greenhouse Production System for 11.4-cm Annual Plants Using Life Cycle Assessment
Ingram, D.L. (University of Kentucky), Hall, C.R. (Texas A&M), and J. Knight (University of Kentucky)
Life cycle assessment (LCA) was used to analyze production system components for a 11.4-cm container of wax begonia in a 12-plant shuttle tray modeled in a gutter-connected, Dutch-style greenhouse with natural ventilation in the northeastern U.S. The global warming potential (GWP) of input products, equipment use and environmental controls for an individual plant would be 0.140 kg CO2e and the variable costs would total $0.666. Fifty-seven percent of the GWP and 43% of the variable costs would be due to the container and the portion of a 12-plant shuttle tray assigned to a plant. Electricity for irrigation and general overhead would be only 13% of GWP and 2% of variable costs. Natural gas use for heating would be 0.01% of GWP and 0.001% of variable costs, even at a northeastern U.S. location. This was due to the rapid crop turnover, and only heated for 3 months of a 50-wk production year
HortScience 2018 (464 KB)
30 Oct 2018
Behe, B.K. (Michigan State University), Knuth, M., C.R. Hall (Texas A&M University), Huddleston, P.T., and R.T. Fernandez (Michigan State University)
This article is the second in a two-part series. The first article was "Conserving water, sales." This second article talks about water conservation and consumer perceptions on recycled water for plant production and landscape.
18 Sep 2018
Conserving water, sales
Behe, B (Michigan State University), Knuth, M., Hall, C., Huddleston, P. (Texas A&M University) and T. Fernandez (Michigan State University)
The industry must react to consumer perceptions, attitudes, and purchase behavior with landscape plants during real and perceived drought periods. This article presents consumer attitudes and perceptions of water use and source with regard to landscape plants.