Navigation Links
How grass buffers keep agricultural herbicides at bay
Date:4/25/2010

MADISON, WI, April 26, 2010-Grass buffer strips are commonly used in crop production to reduce herbicide runoff. These practices are encouraged through incentives, regulations or laws, and are effective at lowering herbicide concentration in runoff. However, subsurface filtration (under the buffer strips) is not as well documented, and neither are the effects of trees integrated into buffer strips with grasses. Understanding these effects is crucial as agriculture producers continue to adopt these strategies.

Researchers studied the impact of grass and grass/tree buffer strips on three herbicides commonly used in agriculture. The scientists studied the transport of the herbicides in both surface runoff and subsurface infiltration during two growing seasons.

Vegetative barriers reduce herbicide concentrations in runoff, but movement of herbicides through subsurface filtration actually increased. Total export of herbicides was reduced through the use of grass and grass/tree barriers. The research was conducted by Emmanuelle Caron, Pierre Lafrance, Jean-Christian Auclair of the University of Quebec, and Marc Duchemin of the Institute of Research and Development in Agri-Environment.

The results are reported in the March/April 2010 edition of the Journal of Environmental Quality, published by the American Society of Agronomy, the Crop Soil Science Society of America, and the Soil Science Society of America.

The results for the first year showed a 35% reduction in herbicide concentration in grass and grass/tree buffer strips than with no buffer. Herbicide concentrations in subsurface filtration increased 800-1200-% with buffer strips, although total overall concentration was reduced 40-60%. In 2005, total herbicide concentration exported through the buffer strips was 75-95% less than without the buffers. The findings indicate that grass barriers decrease surface water runoff while increasing subsurface infiltration, resulting in an overall loss of herbicides before reaching bodies of water.

Integrating trees into the barriers did not result in any significant differences. This was possible due to the fact that the trees were only two years old at the beginning of the study, and their root systems were not yet developed enough to demonstrate any impact. Further research is needed to determine the effects of long-established trees in buffer strips. Local meteorological conditions also play an important role in the efficiency of buffer strips, and the two years of the study experienced a wide range of variability that future long term research should address.


'/>"/>

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

Related biology news :

1. Nanotech could make solar energy as easy and cheap as growing grass
2. Researchers discover natural herbicide released by grass
3. Summer-dormant tall fescue grass shows promise for pasture improvements
4. A link between greenhouse gases and the evolution of C4 grasses
5. Gene guards grain-producing grasses so people and animals can eat
6. Can Dungeness crab and eelgrass help improve management of our marine resources?
7. Detecting the snake in the grass
8. Plague of kangaroos threatens one of Australias last remaining original native grasslands
9. Golfers and golf courses benefit from the use of native grasses in roughs
10. Search for salt tolerant grasses aims to improve roadside plantings
11. New UGA biomass technology dramatically increases ethanol yield from grasses and yard waste
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How grass buffers keep agricultural herbicides at bay
(Date:7/20/2017)... July 20, 2017 Delta (NYSE: DAL ) customers ... Delta aircraft at Reagan Washington National Airport (DCA). ... Delta launches biometrics to board aircraft ... Delta,s biometric boarding pass ... is now integrated into the boarding process to allow eligible Delta ...
(Date:5/23/2017)... first robotic gym for the rehabilitation and functional motor sense evaluation of ... Italy . The first 30 robots will be available from June ... . The technology was developed and patented at the IIT laboratories and ... thanks to a 10 million euro investment from entrepreneur Sergio Dompè. ... ...
(Date:4/24/2017)... , April 24, 2017 Janice ... partner with  Identity Strategy Partners, LLP (IdSP) , ... or without President Trump,s March 6, 2017 ... Entry , refugee vetting can be instilled with greater ... (Right now, all refugee applications are suspended by ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... -- After spending the past two years building a state-of-the-art technology ... now offers this platform to healthcare stakeholders (hospitals, foundations, biopharma companies ... data collection vis a vis their members, under their own brand. ... this offer. ... ...
(Date:8/15/2017)... ... , ... Any expert in stem cell research or stem cell medicine knows ... a century. Despite their essential roles in human health and regenerative medicine, adult ... developed for this purpose also tag other, more abundant, non-stem tissue cells ( See ...
(Date:8/15/2017)... PA (PRWEB) , ... August 15, 2017 , ... ... and encrypted shopping cart. Now mobile responsive, the new website makes it easy ... or anywhere in between. Users can now find detailed product information, educational industry ...
(Date:8/11/2017)... , Aug. 11, 2017  Market ... New York Times article regarding the telemedicine ... according to Kalorama Information.  The article, ... for That"  used information from Kalorama ... Monitoring & Telemedicine Market  (Sleep, Diabetes, ...
Breaking Biology Technology: