Search Results

You are looking at 81 - 90 of 258 items for :

  • "environmental control" x
  • Refine by Access: All x
Clear All
Full access

Rolston St. Hilaire, Theodore W. Sammis, and John G. Mexal

environmentally controlled greenhouses ( Spaw and Williams, 2004 ). Climate monitoring equipment allowed students to observe differences in environmental conditions between the hoop house and the external environment ( Fig. 3 ) while providing them with practical

Full access

W. Garrett Owen, Alyssa Hilligoss, and Roberto G. Lopez

.25 zinc (Zn). Plant material was maintained in a glass-glazed greenhouse with exhaust fan and evaporative pad cooling, radiant hot-water heating, and retractable shade curtains controlled by an environmental control system (Maximizer Precision 10; Priva

Full access

Sarah A. Masterson, Megan M. Kennelly, Rhonda R. Janke, and Cary L. Rivard

chambers on Day 8 and watered daily. KSU greenhouse, Manhattan, KS. The greenhouse in Manhattan consisted of a glass covering with typical environmental controls for a university research greenhouse including forced air heating and cooling pads. A layer of

Full access

Benedict C. Posadas, Patricia R. Knight, Randal Y. Coker, Christine H. Coker, Scott A. Langlois, and Glenn Fain

automated environmental control systems. About one-fifth of the nurseries reported moving containers from potting to transport vehicles for movement within the nursery with some form of mechanization ( Table 2 ). More than half of the nurseries reported

Free access

Kristy Borrelli, Richard T. Koenig, Brad M. Jaeckel, and Carol A. Miles

High tunnels, also called hoophouses, are used worldwide to provide environmental control for raising horticultural crops ( Lamont, 2009 ; Waterer, 2003 ; Wells and Loy, 1993 ). Protected cultivation with high tunnels is not as prevalent in the

Full access

O.M. Aguilar, T.M. Waliczek, and J.M. Zajicek

Cousins, 1983 ), an environmental attitude inventory ( Cammack et al., 2002a ) and the Revised Perceived Environmental Control Measure (RPECM; Smith-Sebasto, 1992 ). A demographic questionnaire for students was included as a cover sheet. CERI in its

Open access

Yu-Wei Liu and Chen-Kang Huang

plants, p. 851–858. Proc. 6th European Symp. on Space Environmental Control Systems, Noorwijk, The Netherlands, 20–22 May 1997. (ESA SP-400, August 1997) Despommier, D. 2009 The rise of vertical farms Sci. Amer. 301 5 80 87 Engineering ToolBox 2006 Pump

Free access

Tadahisa Higashide and Ep Heuvelink

.g., improvements in greenhouse transmissivity and developments in cultivation techniques such as longer cultivation, soilless culture, high wire training systems, CO 2 enrichment, and environmental control by computers. Also, breeding for higher yielding cultivars

Free access

Emma Bradford, James F. Hancock, and Ryan M. Warner

classified as DN ( Hancock et al., 2002 ). The results of this work will expand our knowledge of the environmental control of this trait and allow us to identify appropriate screening environments to breed remontant cultivars. Materials and Methods

Full access

Kellie J. Walters and Christopher J. Currey

many factors, including the crop finishing date, desired size and quality, crop production stage, cost of heating systems and fuel, environmental controls, time of year, and greenhouse type and location. Although greenhouse temperatures fluctuate