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Is biochar the answer for ag?
Date:8/1/2010

greenhouse mitigation value of biochar, which is already proven to be a highly stable carbon pool in the soil environment," according to senior author Bhupinder Pal Singh. "This research highlights that impacts of biochar on nitrogen transformations in soil may change over time and hence stresses the need for long-term studies to assess biochar's potential to reduce nitrogen losses from soil."

In addition to the three wet-dry cycles, the soil samples also received glucose and nutrient applications to supply of carbon and inorganic nutrients for optimal microbial activity. The research team tested biochar from two different sources, wood waste and poultry litter. Biochar is made when organic material is burned at high temperatures in the absence of oxygen.

Research is on-going at Industry and Investment NSW to investigate the causes of the reductions in nitrous oxide emissions by biochars, especially under field conditions, and to determine optimal rate and timing of biochar and fertiliser applications to agricultural soils to maximize the greenhouse mitigation value of biochar.


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Contact: Sara Uttech
suttech@sciencesocieties.org
608-268-4948
American Society of Agronomy
Source:Eurekalert

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