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| Elzobair, K.A.; Stromberger, M.E.; Ippolito, J.A.; Lentz, R.D.. |
| Biochar has been shown to increase microbial activity, alter microbial community structure, and increase soil fertility in arid and semi-arid soils, but at relatively high rates that may be impractical for large-scale field studies. This contrasts with organic amendments such as manure, which can be abundant and inexpensive if locally available, and thus can be applied to fields at greater rates than biochar. In a field study comparing biochar and manure, a fast pyrolysis hardwood biochar (10 tons per acre), dairy manure (19 tons per acre), a combination of biochar and manure at the aforementioned rates, or no amendment (control) was applied to an Aridisol (n=3) in fall 2008. Plots were annually cropped to corn. Surface soils (0-12 inches) were sampled... |
| Tipo: Article |
Palavras-chave: Chemistry; Fertility; Soil. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1599/1/1557.pdf |
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| Elzobair, K.A.; Stromberger, M.E.; Ippolito, J.A.. |
| Stabilization of extracellular enzymes may maintain enzymatic activity for ecosystem services such as carbon sequestration, nutrient cycling, and bioremediation, while protecting enzymes from proteolysis and denaturation. A laboratory incubation study was conducted to determine whether a fast pyrolysis biochar (CQuest) derived from oak and hickory hardwood would stabilize extracellular enzymes in soil and prohibit the loss of potential enzyme activity following a denaturing stress, in this case microwaving. Soil was incubated in the presence of biochar (0, 1, 2, 5, or 10% by weight) for 36 days and subsequently exposed to microwave energies of 0, 400, 800, 1600, or 3200 Joules per gram of soil. Soil enzymes (ß-glucosidase, ß-D-cellobiosidase,... |
| Tipo: Article |
Palavras-chave: Chemistry; Soil. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1597/1/1555.pdf |
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