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Jeffrey G. Williamson, Luis Mejia, Bradley Ferguson, Paul Miller, and Dorota Z. Haman

SHB are extensively grown do not meet these criteria and must be modified for commercial production. Pine bark is often added to rows before planting to increase substrate organic matter content and porosity, and lower pH ( Duryea et al., 1999

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Elio Jovicich, Daniel J. Cantliffe, Peter J. Stoffella, and Dorota Z. Haman

media commonly used in Florida's greenhouse vegetable industry are perlite, pine bark, and commercial peatmoss-based mixtures. These media have adequate aeration porosity and water-holding capacity ( Burés, 1997 ; Pokorny, 1987 ; Raviv et al., 2002

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Hanna Y. Hanna

°F (19.4 °C) average day and night temperature. Producers use rockwool as growing media in large commercial operations around the world ( Papadopoulos, 1991 ). Most Mississippi growers use locally produced pine bark that has been finely shredded and

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Glenn B. Fain, Charles H. Gilliam, Jeff L. Sibley, and Cheryl R. Boyer

Peat moss and pine bark are the primary components of growth substrates in the production of container-grown herbaceous crops. However, there is concern that the availability of pine bark for horticultural usage might be limited as a result of

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Jeb S. Fields, William C. Fonteno, Brian E. Jackson, Joshua L. Heitman, and James S. Owen Jr.

%, 40%, and 50%, by volume totaling 15 mixes. In addition, 100% components of peat, perlite, PWC, SPW, aged pine bark (PB), and coconut coir pith (Densu Coir, Canada) were also tested to attain characteristics of other traditionally used greenhouse

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Rebecca L. Turk, Helen T. Kraus, Ted E. Bilderback, William F. Hunt, and William C. Fonteno

available, pre-blended filter bed substrates were evaluated, each with a different base component and the same source of organic matter (pine bark fines). The sand-based substrate (sand) was a blend (v/v/v) of 80% washed sand, 15% clay and silt fines, and 5

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James E. Altland and Charles Krause

formulations of elemental S incorporated into the substrate reduced pH by 1–2 units below non-amended controls over a duration of 84 d while having no adverse effect on blueberry ( Vaccinium × ‘Northcountry’) growth in a peat and pine bark substrate. The

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Timothy K. Broschat

concentrations in unfertilized plots, we found that the presence of cypress mulch significantly increased soil K concentrations above that of unmulched plots in Expt. 2 ( Table 1 ). Water-extractable K concentrations in cypress, melaleuca, pine bark, and pine

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Paul C. Bartley III, Glenn R. Wehtje, Anna-Marie Murphy, Wheeler G. Foshee III, and Charles H. Gilliam

container industries. Tree-derived mulches such as chipped eastern red cedar, pine bark mini-nuggets ( Pinus sp.), and douglas fir ( Pseudotsuga menziesii ) have widespread availability, reasonable consistency, and are generally accepted by consumers

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Robert R. Tripepi, Mary W. George, K. Amanda Linskey, John E. Lloyd, and Jennifer L. Van Wagoner

prefer to use a simple and easy method for applying nutrients to nursery stock. The nutrient treatments used in this study were pine bark mulch without fertilizer (control), Osmocote 15N–3.9P–10K used at the labeled rate of 114.2 g broadcast over the top