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T. E. Bilderback, W. C. Fonteno, and D. R. Johnson


Equal volumes of peanut hulls, pine bark, and sphagnum peatmoss were combined into 5 media. Particle size distribution, total porosity, air space, easily available water, water buffering capacity, and bulk density were determined for each medium. Top dry weight, root dry weight, and percent growth of Rhododendron indicum (L.) Sweet cv. George L. Taber were measured 14 weeks after potting in 1-liter containers. Peanut hulls increased particle size, total porosity, and air space, and decreased easily available water, water buffering capacity, and bulk density of media. Peatmoss generally reduced total porosity and air space and increased easily available water, water buffering capacity, and bulk density regardless of other component combinations. Top dry weight, root dry weight, and percent growth were greater in peanut hull-containing media. Addition of peatmoss to the container media tended to produce less growth.

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Abbey C. Noah, Helen T. Kraus, and Paige L. Herring

developed a substrate by composting swine lagoon solids with peanut ( Arachis hypogaea ) hulls 15:85 v/v resulting in a substrate with a 1.8N–1.5P–0.2K analysis, and a pH and EC that were appropriate for germinating seedlings ( Herring et al., 2017

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Paige L. Herring, Abbey C. Noah, and Helen T. Kraus

photoperiod. Fig. 1. Dill roots at harvest (49 d after sowing). Substrates included swine lagoon compost (SLC) [15:85 (v/v) swine lagoon sludge:ground peanut hulls]; aged pine bark fines, peat, soil, perlite, and worm castings (OM); and conventional substrate

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R.P. Flynn, C.W. Wood, and E.A. Guertal

A glasshouse study was conducted to evaluate the suitability of composted broiler chicken (Gallus gallus) litter as a potting substrate using lettuce (Lactuca sativa L.). Broiler litters containing wood shavings or peanut bulls as bedding materials were composted with either shredded pine bark or peanut hulls. Composted materials were then combined with a commercially available potting substrate. Greatest fresh weight yield was obtained when peanut bull compost was mixed with commercial potting substrate at a ratio of 3:1. Fresh weight was less with pine bark compost than with peanut hull compost. However, there were no differences in lettuce dry weight among composts except for pine bark composted with wood-shaving broiler litter. The pH of this material was below the lettuce tolerance level for mixes at or above 50% compost. There was no evidence of lettuce physiological disorders resulting from excessive nutrient concentration. Most elements analyzed (N, P, K, Ca, Mg, Fe, Mn, Cu, Zn, and Al) were within or slightly above sufficiency ranges for Boston-type leaf lettuce. It appears that composting broiler litter for use as a potting substrate or component would be one suitable alternative to land application in the southern United States. We recommend, however, that the pH of substrates be adjusted to suit desired crop requirements.

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Jose G. Franco, Stephen R. King, Joseph G. Masabni, and Astrid Volder

with monocultures; i.e., less complex systems. We also hypothesized that this reduction in weed biomass would be the result of increased leaf area and aboveground plant biomass intercepting solar radiation. The species used in this study were peanut

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James E. Altland, James S. Owen Jr, and William C. Fonteno

correlate EAW or WBC to plant growth. Bilderback et al. (1982) compared MCC of five substrates composed of varying combinations of pine bark, peatmoss, and peanut hulls. They ( Bilderback et al., 1982 ) found that pine bark + peanut hulls had the lowest

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Sabrina J. Ruis, Humberto Blanco-Canqui, Ellen T. Paparozzi, and Russ Zeeck

. Potential alternatives include coconut ( Cocos nucifera L.) fibers (coir), composts, rice ( Oryza sativa L.) hulls, wood chips, biochar, and others ( Abad et al., 2002 ; Alvarez et al., 2017 ; Buck and Evans, 2010 ; Barrett et al., 2016 ; Margenot et

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, indicating better adaptation to drought. Herb Transplant Production Using Swine Lagoon Sludge Herb production is becoming more popular in the vegetable industry. Herring et al. (p. 337) compared compost composed of swine lagoon sludge and peanut hulls

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Md. Jahedur Rahman, Md. Quamruzzaman, Jasim Uddain, Md. Dulal Sarkar, Md. Zahidul Islam, Most. Zannat Zakia, and Sreeramanan Subramaniam

.g., rice hull, coco peat, carbonized rice husk, and sawdust. These materials are mainly agricultural byproducts obtained after the extraction of fiber from the coconut husk, paddy, and saw mills and may be used as horticultural growing substrates. As a

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Gary R. Bachman and James D. Metzger

. Tilt et al. (1987) reported that substrate particle size had significant effects on physical properties and plant growth of three species of woody ornamental plants. Substrate amended with peanut hulls increased particle size, porosity, and air space