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:12/6/2016)... WARSAW, Ind. , Dec. 6, 2016  Zimmer Biomet ... that it has priced an offering of €500.0 million principal ... €500.0 million principal amount of its 2.425% senior unsecured notes ... is expected to occur on December 13, 2016, subject to the ... on an annual basis. ...
(Date:12/6/2016)... RALEIGH, N.C. , Dec. 6, 2016 ... technology, announced today it has seen a third consecutive ... biometric sensor technology in 2016 with a 360 ... over last year. This increase was driven by sales ... well as robust interest in its technology for hearables ...
(Date:12/6/2016)... DALLAS , Dec. 6, 2016 ... criminal justice technology solutions for public safety, investigation, ... (PEP) jointly announced today a five (5) year ... exclusive agreement to expand the rehabilitation and reentry ... PEP History Established in 2004, the Prison ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... 2016  Renova™ Therapeutics, a biotechnology company developing ... other chronic diseases, announced that Catherine Bovenizer ... Financial Officer (CFO), effective today. Ms. ... experience in financial management for a variety of ... Most recently, Ms. Bovenizer was the Vice President ...
(Date:12/5/2016)... Dec. 5, 2016 NxGen MDx announced today that it brought ... in house, we,ve been able to improve customer service through shortened turnaround ... Alan Mack , CEO of NxGen MDx. ... , , A decrease in ... led to more job opportunities at the Grand Rapid headquarters. ...
(Date:12/5/2016)... 2016 Research and Markets has announced ... - Technologies, Markets and Companies" to their offering. ... , , ... of human genome variations, development of sequencing technologies, and their ... as companies developing them. Various applications of sequencing are described ...
(Date:12/4/2016)... ... December 02, 2016 , ... A ... small businesses in federally funded research and development is welcome news for the ... and photonics . , As part of the National Defense Authorization Act (NDAA) ...
Breaking Biology Technology: