نتایج جستجو برای: peat moss

تعداد نتایج: 9516  

Journal: :Annals of Surgery 1889

2001
Y. S. Ho G. McKay C. F. Forster

A pseudo-second order rate equation describing the kinetics of sorption of divalent metal ions on to sphagnum moss peat at various initial metal ion concentrations and peat doses has been developed. The sorption kinetics were followed based on the concentrations of metal sorbed at various time intervals. Results show that chemical sorption processes might be rate-limiting for the sorption of di...

Journal: : 2022

Purpose: Modification of natural sorbents to improve their sorption properties. Design: Microwave treatment effect on the properties peat, reindeer moss, moss and pine sawdust. Research findings: Short-term microwave has no moisture oil absorption by peat moss. On contrary, sawdust are improved, especially wood waste, i. e., capacity increases 41 %. The provides 11.4 17 % increase in relation p...

Journal: :Proceedings. Biological sciences 2003
Pamela J Wilson Jim Provan

Peat bogs represent unique ecosystems that are under particular threat from fragmentation due to peat harvesting, with only 38% of the original peatland in Europe remaining intact and unaffected by peat cutting, drainage and silviculture. In this study, we have used microsatellite markers to determine levels and patterns of genetic diversity in both cut and uncut natural populations of the peat...

2010
Ajay Kumar Singh Suresh Chand

A method has been developed for plant regeneration by encapsulation of somatic embryos obtained from callus cultures derived from semi-mature cotyledon explants of Dalbergia sissoo Roxb. (family Fabaceae). Embryogenic callus was developed from cotyledon pieces on Murashige and Skoog (1962) medium supplemented with 9.04 μM 2,4dichlorophenoxyacetic acid and 0.46 μM kinetin. The somatic embryos we...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Cornelis Rappoldt Gert-Jan J M Pieters Erwin B Adema Gerrit J Baaijens Ab P Grootjans Cornelis J van Duijn

Transport of nutrients, CO2, methane, and oxygen plays an important ecological role at the surface of wetland ecosystems. A possibly important transport mechanism in a water-saturated peat moss layer (usually Sphagnum cuspidatum) is nocturnal buoyancy flow, the downward flow of relatively cold surface water, and the upward flow of warm water induced by nocturnal cooling. Mathematical stability ...

2004
Kenji Yoshikawa

Sphagnum (spp.) is widely distributed in permafrost regions around the arctic and subarctic. The moisture content of the moss layer affects the thermal insulative capacity and preservation of permafrost. It also controls the growth and collapse history of palsas and other peat mounds, and is relevant, in general terms, to permafrost thaw (therrnokarst). In this study, we test and calibrate seve...

Journal: :Journal of colloid and interface science 2016
Aridane G Gonzalez Oleg S Pokrovsky Anna K Beike Ralf Reski Anna Di Palma Paola Adamo Simonetta Giordano J Angel Fernandez

Terrestrial mosses are commonly used as bioindicators of atmospheric pollution. However, there is a lack of standardization of the biomonitoring preparation technique and the efficiency of metal adsorption by various moss species is poorly known. This is especially true for in vitro-cultivated moss clones, which are promising candidates for a standardized moss-bag technique. We studied the adso...

Journal: :Journal of Cleaner Production 2021

Peat use in horticulture is associated with a large ecological footprint. the predominant growing media Europe. Modern cropping systems rely heavily on dynamic interactions of crop microorganisms and yet, search for sustainable peat-alternatives, microbiome has often been ignored. In mushroom cultivation, peat prime determinant productivity, form casing soil which supplies beneficial microbes. ...

Journal: :The Iraqi Journal of Agricultural science 2023

This study was conducted at Abi – Jarash farm, Damascus, Syria, during 2018/2019 and 2019/2020 growing seasons. The aim of this comparing the effect three different cultivation techniques saffron (Crocus sativus L.), which were soilless cultivation, within nutrient film technique (NFT), in substrates (mixture peat moss- perlite), addition to soil. An increasing vegetative growth measurements re...

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