Most Popular Posts
Categories
- Biodiversity (45)
- Climate change (137)
- Community-based conservation (45)
- Economics and conservation (113)
- Endangered species (185)
- Fresh water (41)
- Habitat (158)
- Invasive species (76)
- Marine (103)
- Monitoring (198)
- Restoration (133)
- Socio-political issues (148)
- Tools and technology (91)
Archives
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- April 2009
- January 2009
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
- January 2007
Feb
12
2010
Over-use of fertilizer has acidified China’s soil
Buy clomid no prescription, The soil in Chinese croplands has become more acidic since the 1980s, primarily as a result of too much nitrogen fertilization, researchers report in Science.
A topsoil survey revealed that the pH of five out of six soil types has decreased over the last few decades, with average changes ranging from 0.13 to 0.8 units. Even soils that contain large amounts of calcium carbonate, Arizona AZ Ariz. , Acheter clomid, which counteracts acidity, showed a downward trend in pH, North Carolina NC N.C. . Køb discount clomid, An analysis of 154 farm sites produced similar results, with more than half the fields showing a pH drop of more than 0.5 units.
Excessive nitrogen fertilization is to blame, buy generic clomid, Michigan MI Mich. , the researchers say. Some farmers are loading their fields with more than 500 kilograms of nitrogen per hectare each year, comprar en línea clomid, Ordering clomid without prescription, with rates exceeding 4,000 kilograms per hectare in the province of Shandong, købe clomid online. Kentucky KY Ky. , The resulting acidification is 10 to 100 times worse than the acidification caused by acid rain, the authors say, ordering clomid no prescription, Kopen goedkope clomid, making better nutrient management an urgent priority. – Roberta Kwok
Source: Guo, cheapest clomid, Buy clomid cheap, J.H. et al, Mississippi MS Miss. . Ohio OH , 2010. Significant acidification in major Chinese croplands. Science. DOI: 10.1126/science.1182570.
Image © apce, buy clomid without prescription, Pennsylvania PA Penn. , iStockPhoto.com
. Cheap clomid online legally. Purchase clomid. Buy clomid from canada. Kaufen clomid. Oklahoma OK Okla. . Ordering clomid from canada. Kansas KS Kans. .
Similar posts: Buy diazepam. Buy viagra free samples no prescription. Viagra online cheap. Order viagra no prescription. Cheapest viagra in the world. Buy viagra.
Trackbacks from: Buy clomid no prescription. Buy clomid no prescription. Buy clomid no prescription. Buy clomid no prescription. Buy clomid no prescription. Buy clomid no prescription.
Filed Under Socio-political issues |
Email This Post