Navigation Links
Manure runoff depends on soil texture
Date:3/29/2011

MADISON, WI MARCH 18, 2011 Research has documented the rise of nutrient runoff from flat agricultural fields with high rates of precipitation that adds nitrates and phosphates to waterways.

These nutrients increase the amount of phytoplankton in the water, which depletes oxygen and kills fish and other aquatic creatures. While injecting animal manure slurry into the soil has been proven to be an effective way of reducing greenhouse gas emissions, there has been no research on the possibility of nutrients leaching from the soil and reaching waterways.

A collaborative study funded by the Danish Ministry of Food, Agriculture, and Fisheries was carried out between University of Copenhagen and University of Aarhus, Denmark, to investigate the influence of dairy slurry on leaching of manure nutrient components.

Loamy sand, a sandy loam, and loam were the three sub soil textures beneath the plow layer. Bromide was mixed into the slurry to represent dissolved nonreactive solutes like nitrate. The experiments were performed under low precipitation intensity andnear-saturated conditions. Researchers analyzed the leaching of the bromide as well as particulate and dissolved phosphorus.

The results indicated that the slurry injected into the loam soil reduced leaching; however, there was no effect on bromide leaching in the sandy loam or loamy sand. The loamy sand also showed no difference in phosphorus leaching, but a reduction was noted in the sandy loam and the loam.

Nadia Glsner, who conducted the study, said, "This highlights the importance of soil texture when evaluating agricultural management strategies for reducing nutrient losses from agricultural fields. Injection of dairy slurry might reduce leaching of nonreactive slurry components and phosphorus from fine-textured soils, but the effect was not seen on coarse-textured soils."

The full study is published in the March/April 2011 issue of the Journal of Environmental Quality.


'/>"/>

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

Related biology news :

1. Pelletized manure reduces toxic runoff
2. Southern soils mitigate manure microbes
3. Tracking phosphorus runoff from livestock manure
4. Vermicompost from pig manure grows healthy hibiscus
5. Composted dairy manure in foliage plant production
6. Transport behavior of E. coli varies depending on manure source
7. Plant buffers can slow runoff of veterinary antibiotics
8. Arsenic in field runoff linked to poultry litter
9. Super socks help stem pollution runoff
10. Compost filter socks improve runoff from croplands
11. Cover crops reduce erosion, runoff
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2017)... -- On April 6-7, 2017, Sequencing.com will host the world,s ... at Microsoft,s headquarters in Redmond, Washington ... health and wellness apps that provide a unique, personalized ... is the first hackathon for personal genomics and the ... the genomics, tech and health industries are sending teams ...
(Date:3/29/2017)... -- higi, the health IT company that operates the largest ... , today announced a Series B investment from BlueCross ... new investment and acquisition accelerates higi,s strategy to create ... health activities through the collection and workflow integration of ... and secures data today on behalf of over 36 ...
(Date:3/24/2017)... The Controller General of Immigration from Maldives Mr. ... have received the prestigious international IAIR Award for the most innovative ... ... Maldives Immigration ... Algeen (small picture on the right) have received the IAIR award for ...
Breaking Biology News(10 mins):
(Date:4/19/2017)... ... April 18, 2017 , ... Alisa Wright, founder and ... Awards from the Purdue College of Pharmacy in Lafayette, Indiana. , The Distinguished ... for achievements in their careers and other scientific endeavors. , Wright began her ...
(Date:4/19/2017)... ... April 19, 2017 , ... ... financing round. This event adds to several other early achievements at ThermaGenix, including ... Scientific Teams. , ThermaGenix will use proceeds from the Series A-1 ...
(Date:4/19/2017)... India , April 19, 2017 A new report ... and Industry Forecast, 2014-2022 ," the global market was valued at $6,769 million ... CAGR of 9.6% from 2016 to 2022. ... Allied Market ...      (Logo: http://photos.prnewswire.com/prnh/20140911/647229) ...
(Date:4/19/2017)... SAN FRANCISCO, Calif. , April 19, 2017 ... VCYT ) today announced that it will ... close of market on Wednesday, May 3, 2017. Following ... and webcast at 4:30 p.m. Eastern Time to discuss the ... The live webcast and subsequent replay may be ...
Breaking Biology Technology: