Navigation Links
Does pasture irrigation increase groundwater contamination?
Date:6/13/2010

MADISON, WI, June 14th, 2010 Concern about microbial contamination of groundwater from foraging dairy cows has increased as spray irrigation practices in New Zealand have increased over the years. Bacteria capable of living in both animals and humans are commonly found in cow manure. Addressing the lack of research on the topic, a team of New Zealand researchers studied the transport of microbes from two spray irrigated dairy pastures into groundwater supplies.

The research team, reporting in the May-June 2010 Journal of Environmental Quality and published by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, found little to no transport of microbes due to spray irrigation application.

When irrigation applications were increased to simulate irrigation plus heavy rainfall, there was a small increase some forms of bacteria, notably E. coli. But other common bacteria were only detected at very low levels when fresh cow pats where subjected to this treatment.

The results of the study indicate a minimal impact of dairy farm pastures on microbial quality of groundwater as a result of spray irrigation.

Previous studies of flood irrigation, which apply much more water less efficiently than the spray irrigation systems used in this study, have been shown to cause high levels of groundwater contamination. No difference was noticed between two different spray irrigation systems, a traveling irrigator and center pivot. The researchers suggest that converting from flood irrigation to spray irrigation will reduce microbial contamination f groundwater and reduce environmental health risks.


'/>"/>

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

Page: 1

Related biology news :

1. Cape tulips -- pretty but pests in pastures
2. Summer-dormant tall fescue grass shows promise for pasture improvements
3. Calculating crop and ethanol yields and irrigation needs in 4 easy steps
4. Solar-powered irrigation significantly improves diet and income in rural sub-Saharan Africa
5. Propofol poses low risk in pediatric imaging studies, but risk increases with anesthesia duration
6. Psychedelic maize may help increase crop and biofuel yields
7. How smarter school lunchrooms increase fruit sales
8. TU Delft and MI Labs merge PET and SPECT biomedical imaging techniques and increase resolution
9. Prenatal exposure to BPA and DES may increase breast cancer risk
10. FASEB Scientists Descend on Capitol Hill to Advocate for Increased Science Funding
11. Food insecurity increases risk of weight gain and complications during pregnancy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Does pasture irrigation increase groundwater contamination?
(Date:2/3/2016)... -- --> --> Fourth quarter 2015: ... 1,187% compared with fourth quarter of 2014. Gross margin was ... 30.0). Earnings per share increased to SEK 6.39 (loss: 0.49). ... 74.7). , --> --> ... M (233.6), up 1,142% compared with 2014. Gross margin was ...
(Date:2/2/2016)... This BCC Research report provides a ... the recent advances in high throughput ‘omic platforms ... forward. Includes forecast through 2019. Use ... opportunities that exist in the bioinformatic market. Analyze ... well as IT and bioinformatics service providers. Analyze ...
(Date:2/1/2016)... Rising sales of consumer electronics ... intuitive gesture control market size ... consumer electronics coupled with new technological advancements to drive ... through 2020   --> ... advancements to drive global touchfree intuitive gesture control market ...
Breaking Biology News(10 mins):
(Date:2/8/2016)... ... 08, 2016 , ... Information Management Services ( IMS ) is pleased to ... completely new technical foundation and is so significant it was endowed with a new ... speed for search results, a streamlined layout and a more intuitive format for navigating ...
(Date:2/8/2016)... Conn. , Feb. 8, 2016  NanoViricides, Inc. (NYSE MKT: ... its CEO, Eugene Seymour , MD, MPH, will present information ... at the Waldorf-Astoria Hotel in New York City ... will be in the Windsor Room at 5:30PM EST. Registered attendees ... New York City . --> ...
(Date:2/8/2016)... , February 8, 2016 ... ("Atlas Genetics" or the "Company"), the ultra-rapid Point-Of-Care (POC) molecular ... CE Mark its Chlamydia trachomatis (CT) test to be launched ... the IVD Directive (98/79/EC), the CT test is now cleared ... --> The launch of the io® CT ...
(Date:2/5/2016)... , Feb. 5, 2016 ATCC, the premier ... to assist the medical and life science researchers that ... Virus infection.   CDC website . ... Zika virus is a single-stranded RNA virus of ... West Nile, Dengue and Chikungunya Viruses. Zika virus is ...
Breaking Biology Technology: