production. These changes include pH, soluble salts, nutrients, and potentially phytotoxic materials, as well as physical properties such as AP and WHC. In this research, we manufactured three container substrates by cocomposting biosolids with three locally
Rita L. Hummel, Craig Cogger, Andy Bary, and Robert Riley
Ajay Nair and Brandon Carpenter
plant analysis. Soil Sci. Soc. Amer., Madison, WI Dumroese, R.K. Heiskanen, J.H. Englund, K. Tervahauta, A. 2011 Pelleted biochar: Chemical and physical properties show potential use and a substrate in container nurseries Biomass Bioenergy 35 2018 2027
Susan L. Barkley, Jonathan R. Schultheis, Sushila Chaudhari, Suzanne D. Johanningsmeier, Katherine M. Jennings, Van-Den Truong, and David W. Monks
content and similar yields to Beauregard ( La Bonte et al., 2008 ). A second objective of this research was to compare chemical and physical properties (color, texture, DM, and sugar content) and consumer acceptability of ‘Evangeline’ and ‘Covington
Jaroslav Ďurkovič, František Kačík, Miroslava Mamoňová, Monika Kardošová, Roman Longauer, and Jana Krajňáková
mechanical and physical properties to the cell walls of this stock type. Taken together, the micropropagated plants reached significantly higher values for 13 traits (32.5%), primarily associated with the relative proportion of Glc and the macromolecular
Jennifer Moore-Kucera, Anita Nina Azarenko, Lisa Brutcher, Annie Chozinski, David D. Myrold, and Russell Ingham
, because nutrient cycling is largely driven by microbial functioning. These fractions are considered more responsive to changes in C inputs compared with measurements using total SOM. Table 1. Soil biological, chemical, and physical properties to be
Linda L. Taylor, Alexander X. Niemiera, Robert D. Wright, and J. Roger Harris
result of the acidifying nature of peat. The objective of this work was to determine the effects of storage time on PTS chemical and physical properties and on plant growth. Specifically, the effect of storage on PTS pH, EC, CEC, C:N, particle size
Christopher Y. Choi, Werner Zimmt, and Gene Giacomelli
Aqueous foam was developed to serve as a barrier to conductive, convective, and radiative heat transfer. Through the use of a bulking agent, the physical properties of gelatin-based foam were more stable, adhesive, biodegradable, and long lasting. The phytotoxicity, possible environmental hazard and removal of the foam were also considered. Resistance to freezing-thawing, heating-evaporation, and wind were evaluated. Studies to determine the foam's long-term stability under field weather conditions were completed. The handling and performance characteristics of the foam necessary for development of this application were determined. Factors that affect the physical properties and the utilization of the foam were quantified. These included the proportions of the foam components, the mixing temperature of the prefoam solution, the application temperature, and the rate of foam generation. The newly developed foam might be ideal for freeze and frost protection in agriculture.
Lamprini Tassoula, Maria Papafotiou, Georgios Liakopoulos, and Georgios Kargas
characteristics. Physical and chemical properties of the substrates and their components ( Fig. 2 ; Tables 1 and 2 ) were measured in three samples, which were mixed and taken as one measurement. The physical properties were determined after saturating for 48 h
Maria Papafotiou, Niki Pergialioti, Lamprini Tassoula, Ioannis Massas, and Georgios Kargas
Quality Assurance Organization (FCQAO), 1994 ] by the methods of Peech (1965) and Bower and Wilcox (1965) , respectively. The physical properties of the substrates were determined after 48 h saturation. Samples were prepared by the methods described in
Dennis B. McConnell and Wayne H. Smith
Three foliage plants, Dracaena fragrans, Peperomia obtusifolia and Schefflera arboricola were grown in 24 different mixes. Potting mixes were formulated using yard waste compost from two sources, a commercial mix (Metro 300) and a prepared mix (peat: pine bark sand). All potting mixes produced acceptable plants with no phytotoxicity associated with any mix. Only minor differences were discerned in the growth rate of P. obtusifolia and S. arboricola.
The growth rate of D. fragrans showed the greatest response to potting mix formulations. Plants in a standard potting mix (P/PB/S) used in the industry for D. fragrans grew slower than plants in many of the mixes containing various fractions of yard waste compost. Chemical and physical properties of the potting mixes used showed physical properties had the greatest variability. Overall, the best growth for all 3 plants was in a potting mix composed of 87.5% Metro 300/12. 5% YWC#1 and worst growth was in YWC#2 (100% composted (live oak leaves).