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Michael W. Olszewski, Samara J. Danan, and Thomas J. Boerth

/BLK plus 49% inert (wt:wt) and 99% APE plus 1% inert (wt:wt) were obtained from Aquatrols Corporation of America (Paulsboro, NJ). Physical properties of substrates were determined with and without 1.0 mL·L −1 APG/BLK or APE. To determine substrate physical

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Claudia Calonje, Chad Husby, and Michael Calonje

container substrate. Excellent drainage is especially crucial, because cycads often do best in “sandy gravelly” soils ( Whitelock, 2002 ). As a result of the slow growth of cycads, the ability of a substrate to retain its physical properties over time is

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Michael R. Evans, Johann S. Buck, and Paolo Sambo

% (by weight) amorphous silica ( Juliano et al., 1987 ). Kamath and Proctor (1998) estimated that 34 million tons of fresh rice hulls were produced annually in the United States. Sambo et al. (2008) reported the physical properties of various ground

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Qiansheng Li, Jianjun Chen, Russell D. Caldwell, and Min Deng

. Components in volumetric percentage of Canadian peat- and Florida peat-based substrates substituted by cowpeat. z Determination of physical and chemical properties. The physical properties of the substrates, including bulk density, total porosity, air space

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Vickie Murphy, Teodoro Clase, Rosa A. Rodríguez-Peña, Francisco Jiménez-Rodríguez, Brett Jestrow, Chad E. Husby, and M. Patrick Griffith

of the substrate rather than penetrating the substrate). In addition, length of the longest leaf of each seedling was measured on 30 Mar. 2014. Substrate physical properties (both experiments). Airspace, WHC, and total porosity were measured on a

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Derald A. Harp, Cheng Chen, and Curtis Jones

contribute positively to the substrate water holding capacity, air space, total porosity, and plant available water. Physical properties. As expected, the variation in particle size distribution likely contributed to considerable changes in the physical

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Robert D. Wright, Brian E. Jackson, Jake F. Browder, and Joyce G. Latimer

reducing substrate transportation costs associated with peat-lite (PL) substrate. Subsequent work has demonstrated that a 100% PTS could be manufactured that possesses the same physical properties (percentage of water holding capacity and percentage of air

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George Gizas, Ioannis Tsirogiannis, Maria Bakea, Nikolaos Mantzos, and Dimitrios Savvas

materials improves the physical properties and the agronomic performance of the obtained blend. As a contribution to the use of Posidonia residues in horticulture, the present research was aimed at determining the physical and hydraulic properties and

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Magdalena Pancerz and James E. Altland

size fractions to nursery-grade sphagnum peat. Materials and Methods Three different commercial pine bark ( Pinus taeda L.) substrates marketed as having different physical properties were obtained (Pacific Organics, Henderson, NC) and compared with

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W. Garrett Owen, Brian E. Jackson, William C. Fonteno, and Brian E. Whipker

%, 40%, or 50% (by volume) perlite (Carolina Perlite Co., Gold Hill, NC) or PWC plus a 100% peatmoss (0% aggregate) to produce a total of 11 substrate treatments. Substrate physical properties, including air space [AS (percent by volume)], total porosity