Sustainable Food Guide | Environmental Practice at Work © 2005 This page is under construction |
Issues
| Nitrogen plan & policies...
World 3rd International Nitrogen Conference EU UK RB209 lays down basic procedures, but we need to get a lot tighter on application (at present, there may be 4.1 ratio of return. Should be less than 1 - as often dont need it if soil in good condition). We need to better understand the factors that influence the net production of nitrous oxide by bacteria. Such a study will help develop appropriate management techniques for a range of soil systems to mitigate emissions and to improve existing agricultural and waste treatment practices. See www.nitrousoxide.org To Do: Investigate the question raised at IPC Seminar: "Did the IPCC take full account of reactive nitrogen - or did they underestimate, its affect in climate change?" Creation of ‘reactive nitrogen’ by lightening (white), biological fixation in native ecosystems (yellow), fossil fuel combustion (black), fertilizer production (red), biological nitrogen fixation by crops (green) and imports of fertilizer , animal feed, and human food (purple) from other regions. Adapted from Galloway 2004 (Biogeochemistry 70: 153-156) by UNEP 2007 (pdf) | |||||
Photos courtesy of http://www.usda.gov |