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/1000 ft 2 N per year should be adequate to maintain acceptable landscape-grown vines and groundcovers in west-central Florida. Hydroponics Lab Module Useful in a Greenhouse Management Course Craver and Williams (p. 610) evaluated student learning from
visits than those not depressed, which emphasized the importance of accessibility. Micropropagation of sweetgum with sterile hydroponics and ultra-high CO 2 The forestry and nursery industries plant millions of trees per year; cloning provides a means to
area. Thanks to the frequent use of hydroponics and fertigation, water and nutrient recycling rates are elevated ( Pinstrup-Andersen, 2019 ). For an even more sustainable production in the future, low-input systems such as organoponics (system of urban
Instruments, Woonsocket, RI). The EC was maintained at 1.6 dS·m −1 by adding deionized water and concentrated nutrient solution, while the pH was adjusted to 6.0 ± 0.2 using potassium carbonate (pH Up; General Hydroponics, Sebastopol, CA) and a combination of
). Although these effects can be seen most easily in recirculating hydroponics ( Fig. 2 ), the same principle applies to other production systems where a near constant supply of low concentration yet adequate nutrients is used (e.g., with use of fertigation or
hydroponics, fertigation, and soilless culture, which result in the improvement of cult flower characteristics ( Chae, 2008 ; Tribulato and Noto, 2000 ). Twenty-five of survey participants in Gangwon Province cultivated cut lilies in open fields. The main
field crops, controlled environments, aquaponics, hydroponics, and green roofs. A new activity is the use of virtual field trips in which each student visits an agricultural enterprise and interviews the owner/manger in person to learn about the
control in hydroponics, p. 211–261. In: D. Savvas and H. Passam (eds.). Hydroponic production of vegetables and ornamentals. Embryo Publ., Athens, Greece Al-Ajmi, A. Al-Karaki, G. Othman, Y. 2009 Effect of different substrates on fruit yield and quality of
concentrations in aero-hydroponics on the formation and growth of adventitious roots J. Amer. Soc. Hort. Sci. 113 218 221 Zhang, H. Graves, W.R. Townsend, A.M. 1997 Water loss and survival of stem cuttings of two maple cultivars held in subirrigated medium at 24
water than conventional hydroponics systems have been developed as an economical, low-maintenance method for growing lettuce ( Kratky, 1993 , 2004 ). In this system, roots are exposed to airspace during the entire growth period and absorb nutrients from