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Is biochar the answer for ag? http://apocadocs.com/s.pl?1280754282
Scientists demonstrate that biochar, a type charcoal applied to soils in order to capture and store carbon, can reduce emissions of nitrous oxide, a potent greenhouse gas, and inorganic nitrogen runoff from agriculture settings. The finding will help develop strategies and technologies to reduce soil nitrous oxide emissions and reduce agriculture's influence on climate change.... The study revealed for the first time that interactions between biochar and soil that occur over time are important when assessing the influence of biochar on nitrogen losses from soil. The scientists subjected soils samples to three wetting-drying cycles, to simulate a range of soil moistures during the five-month study period, and measured nitrous oxide emissions and nitrogen runoff.
Initially, biochar application produced inconsistent effects. Several early samples produced greater nitrous oxide emissions and nitrate leaching than the control samples.
However, during the third wetting-drying cycle, four months after biochar application, all biochars reduced nitrous oxide emissions by up to 73 percent, and reduced ammonium leaching by up to 94 percent. The researchers suggest that reductions in nitrous oxide emissions and nitrogen leaching over time were due to "ageing" of the biochars in soil.
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[Read more stories about:
carbon sequestration, bioremediation, fertilizer runoff]
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'Doc Jim says:
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Carbon sequestration and nitrogen stabilization and runoff control? This sounds like a conspiracy.
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