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.
19 Mar 2018
Slow Sand Filters
Pitton, B.J.L., Oki, L.R. (University of California Davis), White, S.A (Clemson University)
Slow sand filters (SSF) can provide high-quality water from untreated sources like irrigation runoff. SSFs consist of a sand bed with about three feet of water above that flows through the sand via gravity. A microorganism community develops on the sand that has the ability to remove plant pathogens, including water molds, viruses, bacteria, and fungi. Flow rates are approximately six inches per hour so they can occupy a large area if sizable volumes of water need to be treated. However, SSFs are simple to install and are fairly cheap to operate compared to other treatment technologies.
16 Feb 2018
Plants With Purpose
Garcia-Chance, L., Majsztrik, J., and S. White (Clemson University)
Bioremediation, which is the process of using plants and microbes to remove contaminants from water and soil, has been used successfully in many different forms. Ornamental growers can use plants to effectively treat irrigation water. These systems are able to remove nutrients, sediment, and other contaminants from water before it is reused of runs off site. There are a number of different ways that bioremediation can be used at ornamental operations including installing floating mats on irrigation ponds which can save space, provide additional revenue, and reduce algae growth.
Nurserymag Dec 2017 (1518 KB)