28 Aug 2018
Identifying Opportunities to Promote Water Conservation Practices among Nursery and Greenhouse Growers
Warner, L.A., Lamm, A.J., Beattie, P., Fisher, P.R. (University of Florida), and S.A. White (Clemson University)
In this study we assessed knowledge level of U.S. greenhouse and nursery growers about eight water conservation technologies and examined the rate at which growers had adopted and continued their use. Overall, greater levels of knowledge corresponded to both greater adoption and continued use of a technology. Other factors, such as economic cost and technical feasibility are undoubtedly important. Findings highlight an opportunity to focus educational programs on the systems-based strategies that are beneficial to growers, but growers are least knowledgeable about to increase adoption of effective water conservation methods that currently have low levels of grower implementation.
HortScience 2018 Warner et al (363 KB)
10 Apr 2018
Improving Irrigation Efficiency Reduces Water Use
Ristvey, A., Oki, L.R., Haver, D.L., and B.J.L. Pitton (University of California Davis)
A high level of irrigation application uniformity is essential to maximize irrigation efficiency and several strategies are available to audit irrigation systems. Limitations in system design and uniformity can decrease water availability and distribution, thereby hindering efforts to provide sufficient water to plants. Inadequate plant water can reduce growth and quality, decreasing saleable product and profits, while potentially creating environmental problems. Discussed in this article are irrigation system best management practices (BMPs) to improve water use efficiency (WUE), with the potential to increase the amount of water available for distribution and decrease waste.
5 Dec 2017
Modeling Global Warming Potential, Variable Costs, and Water Use of Young Plant Production System Components Using Life Cycle Assessment
Ingram, D.L., Knight, J. (University of Kentucky), and C.R. Hall (Texas A&M University)
The components for two production systems for young foliage plants in 72-count propagation trays were analyzed using life cycle assessment (LCA) procedures. System A was modeled as a gutter-connected, rounded-arch greenhouse without a ridge vent and covered with double-layer polyethylene and plants were fertigated through sprinklers on stationary benches. System B was modeled as a more modern gutter-connected, Dutch-style greenhouse using natural ventilation, and moveable, ebb-flood production tables. Generally, the more modern greenhouse in System B was more efficient in terms of space utilization for production, heating and cooling, fertilization, and water use. While overhead costs were not measured, these differences in efficiency would also help to offset any increases in overhead costs per square foot associated with higher-cost, more modern greenhouse facilities.
HortScience 52 2017 (358 KB)