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Ann Marie VanDerZanden and Tom Cook

Once an abandoned property at the edge of campus, the 7,000 ft2 (650.3 m2) horticulture teaching garden at Oregon State University has evolved from an overgrown residential lot into a well-defined and meticulously maintained garden. Since its beginning, an irrigation system, hardscapes, turf, bulbs, annuals, perennials, and woody plants have been installed by students enrolled in undergraduate horticulture courses. About 200 students use the garden annually as part of their formal instruction and it is currently integrated into the curricula of courses in landscape design, landscape construction and maintenance, and herbaceous and woody plant identification. Because the garden space is dynamic, curriculum changes can easily be accommodated.

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Yan Chen, Regina P. Bracy, Allen D. Owings and Joey P. Quebedeaux

Use of slow-release fertilizers or CRF is being recommended to the landscape service industry as a best management practice ( Florida Yards & Neighborhoods, 2006 ; Louisiana Yards & Neighborhoods, 2007 ). Benefits of using CRF include improved

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Dan T. Stearns

To strengthen students' ability to solve landscape problems creatively while working in group settings, faculty members in the landscape contracting program at The Pennsylvania State Univ. incorporated experiential learning through the construction of on-campus landscape projects between 1992 and 1994. Collaborative student groups developed landscape plans and built the projects. Partnering with other university units resulted in benefits essential to completion of the projects. Student evaluations were shared between the instructor and the students. The success of these projects has led to plarming future experiential projects.

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Catherine K. Singer and Chris A. Martin

Oral Session 9—Ornamental/Landscape and Turf Moderator: Jeffrey Adelberg 19 July 2005, 8:00–9:30 a.m. Room 108

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T.K. Broschat, D.R. Sandrock, M.L. Elliott and E.F. Gilman

Fertilization of established ornamental plants within the landscape has been given little attention by researchers to date. This may be because of a number of factors. Soils and climatic characteristics vary considerably among regions, and optimum

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S. Christopher Marble, Jeff L. Sibley, Charles H. Gilliam and H. Allen Torbert

disposal methods with respect to non-point source pollution and other environmental concerns ( Ribaudo, 2003 ). Because leached nitrate-N from landscape fertilization programs can contaminate drinking water, it is important to identify landscape

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Chris A. Martin, Sean A. Whitcomb and Jean C. Stutz

Pruning is an integral management practice for controlling growth of woody shrubs in urban landscapes. In arid cities such as Phoenix, AZ, the practice of frequent shearing is often used to train shrubs into geometric shapes as a result of a

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Bert T. Swanson, James B. Calkins and Debra L. Newman

A manual for certified nursery and landscape professionals has been developed by the University of Minnesota Extension Service in conjunction with the Minnesota Nursery and Landscape Association (MNLA). The purpose of the certification manual is to facilitate the improvement of basic skills and knowledge of nursery and landscape professionals, to further the education and training of competent nursery and landscape professionals, and to serve as a training and reference manual for most levels of nursery and landscape culture and management. The manual consists of thirty-four chapters covering all aspects of woody plant biology and culture: abiotic and biotic plant stress; landscape design; installation and maintenance; plant marketing, merchandising and sales; and laws, regulations and safety concerns for nursery, landscape and garden center personnel. A concise glossary, the American Standard For Nursery Stock, and an illustrated nursery catalog are also included in the manual. The manual is an important part of the MNLA Certification Program whose purpose is to improve the skills, knowledge and, expertise of nursery and landscape professionals. The Certification Program also strives for faster recognition and promotion of professionalism within the industry and to the general public.

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Roger Kjelgren and Larry Rupp

As populations become increasingly urbanized, landscape water conservation becomes more important. Landscape water consumption can increase municipal water use up to 4-fold during the growing season, and account for half the total yearly water use. Landscape water conservation is important in decreasing peak summer water demand to reduce the strain on delivery systems, and to reduce total demand so that development of new sources can be forestalled. Potential water savings from existing landscapes can be estimated by comparing historical usage gleaned from water meter readings to plant water needs estimated from reference evapotranspiration. Estimating water needs for turf is straightforward because of the few species involved and the uniformity of turf landscapes. Estimating water needs of woody plants is more difficult because of the heterogeneity of woody plants and how they are used, and woody plants respond to evaporative demand differently than turfgrass. Many woody plants will actually use less water as reference evapotranspiration increases due to stomatal closure induced by high leaf-air vapor pressure gradients. Landscape water is then conserved by either applying water more effectively in scheduling when and how long to irrigate based on estimating water use again from reference evapotranspiration, or by replacing areas in turfgrass with plants more-adapted to the existing conditions. Encouraging water conservation by end users is the final and largest challenge. Automated irrigation systems makes wasting water easy, while conserving water takes more effort. Education is the key to successful landscape water conservation.

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Kimberly A. Moore, Amy L. Shober, Gitta Hasing, Christine Wiese and Nancy G. West

Many homeowners that strive to attain aesthetically pleasing landscapes will err on the side of over application of fertilizer rather than insufficient application ( Israel and Knox, 2001 ). However, there are potential environmental consequences of