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    We found that peat moss, amended with various ratios of pellets comprised of equal proportions of biochar and wood flour, generally had chemical and physical properties suitable for service as a substrate during nursery production of plants. High ratios of pellets to peat (>50%) may be less desirable because of high C:N, high bulk density, swelling associated with water absorption, and low volumetric water content, whereas a mixture of 75% peat and 25% pellets had enhanced hydraulic conductivity and greater water availability at lower (<-10 kPa) matric potentials. Adding pellets to substrates used to grow plants in nurseries has potential to add value to biochar and thereby improve economic viability of pyrolysis. Moreover, biochar-amended substrates offer opportunity to sequester carbon as part of the normal outplanting process.

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    Dumroese, R. Kasten; Heiskanen, Juha; Englund, Karl; Tervahauta, Arja. 2011. Pelleted biochar: chemical and physical properties show potential use as a substrate in container nurseries. Biomass & Bioenergy. 35: 2018-2027.


    carbon, greenhouse production, nutrient, pyrolysis, sequestration

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