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Ippolito, J.A.; Novak M, J; Busscher, W.J.; Ahmedna, M.; Rehrah, D.; Watts, D.W.. |
The use of biochar has received growing attention with regards to improving the physico-chemical properties of highly weathered Ultisols and Oxisols, yet very little research has focused on effects in Aridisols. The objective of this study was to investigate the effect of either low or high temperature (250 or 500C) pyrolyzed switchgrass biochar on two Aridisols. In a pot study, biochar was added at 2% w/w to either a Declo loam (Xeric Haplocalcids) or a Warden very fine sandy loam (Xeric Haplocambids) and then incubated at 15% moisture content (by weight) for 127 days; a control (no biochar) was also included. Soils were leached with 1.2 to 1.3 pore volumes of deionized water on days 34, 62, 92, and 127, and cumulative leachate Ca, K, Mg, Na, P, Cu,... |
Tipo: Article |
Palavras-chave: Soil. |
Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1463/1/1428.pdf |
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Ippolito, J.A.; Laird, D.A.; Busscher, W.J.. |
Understanding and improving environmental quality by reducing soil nutrient leaching losses, reducing bioavailability of environmental contaminants, sequestering C, reducing greenhouse gas emissions, and enhancing crop productivity in highly weathered or degraded soils, has been the goal of agroecosystem researchers and producers for years. Biochar, produced by pyrolysis of biomass, may help attain these goals. The desire to advance understanding of the environmental and agronomic implication of biochar utilization led to the organization of the 2010 ASA-CSSA-SSSA Environmental Quality Division session entitled Biochar Effects on the Environment and Agricultural Productivity (Long Beach, CA; Oct. 31-Nov. 3). Twenty-five presentations from this session,... |
Tipo: Article |
Palavras-chave: Soil. |
Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1464/1/1429.pdf |
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Registros recuperados: 22 | |
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