Navigation Links
Improve crop yield by removing manure solids
Date:3/29/2011

Madison, WI, MARCH 29, 2011 Manure has long been used as a crop fertilizer, but the challenge of finding an efficient use of the nutrients found in manure is ever present. The ratio of nitrogen to phosphorus in manure is low in relation to the nutrient needs of most crops. Therefore, crops tend to be overloaded with manure to meet the nitrogen requirement of agricultural crops, but the excess phosphorus from the process can damage the environment.

In a study funded by agriculture and Agri-Food Canada, scientists at the Pacific Agri-Food Research Centre in Agassiz, British Colombia, with collaborators in Quebec City, Quebec, and Brandon, Manitoba tested the effectiveness of removing solids from dairy manure to improve yield by increasing the nitrogen to phosphorus ratio and reducing the loss of nitrogen by hastening soil infiltration.

Solids were removed from the manure slurry in a passive two stage lagoon system, which resulted in the liquid fraction containing less dry matter and a higher nitrogen to phosphorus ratio than whole manure.

The results from the six-year study indicated that the liquid fraction allowed for a higher crop yield and 63% more nitrogen recovery than whole manure at equal application rates. These benefits were the most apparent in the mid-season harvests when dry summer weather conditions accelerate nitrogen loss through ammonia volatilization. The slurry's higher nitrogen to phosphorus ratio prevented the soil from becoming overloaded with phosphorus.

Shabtai Bittman, the principal author of the study, said, "The efficacy of the dairy slurry nitrogen was greatly improved by low-cost removal of slurry solids even when using a low-emission application technique. This significantly advances the cause of efficient use of manure nutrient by crops."


'/>"/>

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

Page: 1

Related biology news :

1. FSU joins coalition working to improve nations power grid
2. For insulin sensitive overweight patients, 1 session of exercise improves metabolic health
3. NIH awards Clemson bioengineer $1.5 million to improve durability of tissue heart valves
4. Researchers study how pistachios may improve heart health
5. Scientists identify gene that may contribute to improved rice yield
6. Research about plant viruses could lead to new ways to improve crop yields
7. RNA molecules, delivery system improve vaccine responses, effectiveness
8. British scientists go cloud-hopping in the Pacific to improve climate predictions
9. How eating fruit and vegetables can improve cancer patients response to chemotherapy
10. USAID grant awarded to improve food security in Africa
11. UI researchers help to improve carbon measurements in global climate studies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/16/2016)... DUBLIN , Dec 16, 2016 Research ... Access System Market - Global Forecast to 2021" report to ... ... projected to grow at a CAGR of 14.06% from 2016 to ... 2016, and is projected to reach 854.8 Million by 2021. The ...
(Date:12/15/2016)...   WaferGen Bio-systems, Inc. (NASDAQ: ... today that on December 13, 2016, it received a ... Stock Market LLC which acknowledged that, as of December ... stock had been at $1.00 or greater for ten ... Listing Rule 5550(a)(2) of the Nasdaq Stock Market. ...
(Date:12/15/2016)...  There is much more to innovative access systems ... Continental will demonstrate the intelligence of today,s solutions at ... Through the combination of the keyless entry and start ... the international technology company is opening up new possibilities ... "The integration of biometric elements brings our expertise ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... , Jan. 19, 2017 AquaBounty Technologies, ... on enhancing productivity in aquaculture and a majority-owned subsidiary ... that it has completed the listing of its common ... equity subscription from Intrexon. "AquaBounty,s listing on ... will broaden our exposure to the U.S. markets as ...
(Date:1/19/2017)... ... January 19, 2017 , ... ... services spanning the full spectrum of drug and device development, and Prism ... pharma/device companies and clinicians, today announced Verified Clinical Trials (VCT) has ...
(Date:1/19/2017)... N.J. , Jan. 18, 2017 BD (Becton, Dickinson ... company, announced today that it will host a live webcast of ... 1 p.m. (ET). The webcast can be accessed ... available for replay through Tuesday, January 31, 2017. ... About BD BD is ...
(Date:1/18/2017)... Jan. 18, 2017 Applied BioMath ( ... to drug research and development, today announced that ... and CEO of Applied BioMath, will present at ... Modeling (BAGIM) Meeting on Thursday January 19, 2017 ... , MA.   Dr. Burke,s talk "Quantitative Modeling ...
Breaking Biology Technology: