Navigation Links
Understanding phosphorus in soils is vital to proper management
Date:2/4/2009

MADISON, WI, FEBRUARY 2, 2009--Phosphorus is one of the key nutrients that can cause algal blooms and related water quality problems in lakes, rivers, and estuaries worldwide. Phosphorus entering waters originates from a variety of sources. Agricultural land receiving long term applications of organic by-products such as animal manure is one of the major contributors. Such soils often become enriched with P, leading to elevated P loss through erosion and runoff. Information on the chemical characteristics of P in these soils is essential to improving our understanding of how P behaves in soils and how it is transported in runoff to devise better management practices that protect water quality.

A group of scientists in the USA and Australia have identified the chemical forms of P, using 31P nuclear magnetic resonance (NMR) spectroscopy, in soils receiving organic by-products for at least eight years (treated) as compared with soils not receiving P application (untreated). Results from the study were published in the January-February issue of the Soil Science Society of America Journal.

Regardless of the type of organic materials applied (dairy, swine, poultry, or spent mushroom compost), orthophosphate (inorganic P) was the single dominant P form, more so in treated soils (79-93% of total P) than in untreated soils (33-71%). Orthophosphate was also the only P form that differed dramatically between paired soils, three to five times greater in treated than untreated soils. Other P forms included condensed inorganic P and various organically bound P groups; however, their amounts were relatively small and differences between each paired soils were insignificant.

Surprisingly, the study revealed no evidence of phytate-P accumulation in any of the soils receiving organic wastes. Phytate is an organic storage form of P that is known to be present in animal manures, in particularly large proportion (up to 80% of total P) in pou
'/>"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
Soil Science Society of America
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology news :

1. Understanding extinct microbes may influence the state of modern human health
2. New technique is quantum leap forward in understanding proteins
3. Stowers Institutes Linheng Li Lab expands understanding of bone marrow stem cell niche
4. Understanding how oxidative stress impairs endothelial progenitor cell function
5. Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
6. Proteins in sperm unlock understanding of male infertility says new study
7. Hidden infections crucial to understanding, controlling disease outbreaks
8. Better understanding of blood vessel constrictor needed to harness its power for patients
9. Pictures of hot fudge sundaes arouse: Understanding emotions improves our food choices
10. Gaining a better understanding of kidney diseases
11. Do 68 molecules hold the key to understanding disease?

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/30/2009)..., New Orleans, LA Researchers from LSU Health Sc... Eunice Kennedy Shriver National Institute of Chil...hool of Public Health, Brigham and Women,s Hospita...first time that drinking more than 5 servings of s...ears to significantly elevate the risk of developi...
(Date:11/30/2009)..., Two so-called invasion proteins are crucial for...surface of human cells, which stimulates the host ...ptor molecules exert a different function, for exa...ng. The group,s results have now been published in...iology ". , Spoiled meat is one of the sources f...
(Date:11/30/2009)..., If you ever thought the stress of seeing your e...g youbad news: a new research report in the Decemb...iology ( http://www.jleukbio.org ) shows that you...m the same study might lead to entirely new treatm..., arthritis, and eczema under control. That,s beca...
Breaking Biology News(10 mins):Sugary cola drinks linked for first time to higher risk of gestational diabetes 2Sugary cola drinks linked for first time to higher risk of gestational diabetes 3It takes 2 to infect 2Seeing family for the holidays? Scientists discover how the stress might kill you 2UCR scientists manipulate ripples in graphene enabling strain based graphene electronics 13195 1UCR scientists manipulate ripples in graphene enabling strain based graphene electronics 13195 2UCR scientists manipulate ripples in graphene enabling strain based graphene electronics 13195 3Surgery remans an option for advanced lung cancer 52719 1Surgery remans an option for advanced lung cancer 52719 2Common allergy drug reduces obesity and diabetes in mice 9359 1Common allergy drug reduces obesity and diabetes in mice 9359 2Common allergy drug reduces obesity and diabetes in mice 9359 3Common allergy drug reduces obesity and diabetes in mice 9359 4
...rcent of women rely on their healthcare providers ...ercent said their doctor has talked to them about ...avirus (HPV) - according to a new survey released ...onals (ARHP). HPV is extremely common, affecting a...n their lifetime, in some cases staying dormant un...
...r manipulating macromolecules has been developed b...ana-Champaign. The technique uses double-stranded ...In previous DNA nanotechnology efforts, duplex DNA...ometrical objects in three dimensions. Instead of ...rchers are using DNA to control the folding and re...
...r manipulating macromolecules has been developed b...ana-Champaign. The technique uses double-stranded ...In previous DNA nanotechnology efforts, duplex DNA...ometrical objects in three dimensions. Instead of ...rchers are using DNA to control the folding and re...
Other Biology News:Survey reveals women and doctors aren't talking about HPV 2Survey reveals women and doctors aren't talking about HPV 3Health costs soar as 60 million Americans classed as obese 2UN successfully tests 'green' pesticide against locusts 2
(Date:11/30/2009)...MSTERDAM, November 30 El...c, medical and technical products and services,to...prehensive biomedical,database which holds over 20...ve, peer reviewed journals. , Embase has ...iomedical,and pharmaceutical insights. Now, new de...
(Date:11/28/2009)...onal Advisory Committee on Climate Change (NACCC) ...oject in collaboration with the Vanuatu Meteorolog...have generated preliminary climate change and sea ...or the country’s SNC reporting to the United...NFCCC). , Port Vila, Van...
(Date:11/27/2009)...wire-FirstCall/ -- Stallergenes has been,granted E...ts and children,through a Mutual Recognition Proce...has been marketed, was the reference Member state....a, Belgium, Bulgaria, Cyprus, the,Czech Republic, ..., Italy,Latvia, Lithuania, Luxembourg, Malta, the...
(Date:11/26/2009)...ion of ultrasmall transistors and more powerful co...ucting nanowires are closer to reality after a key...y and the University of California at Los Angeles....nowires with layers of different materials that ar...critical requirement for making efficient transist...
Breaking Biology Technology:Elsevier is Re-Launching "Embase" to be a Powerful Resource Providing Deep Insights and Answers to Biomedical Researchers 2Elsevier is Re-Launching "Embase" to be a Powerful Resource Providing Deep Insights and Answers to Biomedical Researchers 3Preliminary Climate and Sea Level Changes for Vanuatu Through the Application of SimCLIM 2Preliminary Climate and Sea Level Changes for Vanuatu Through the Application of SimCLIM 3Preliminary Climate and Sea Level Changes for Vanuatu Through the Application of SimCLIM 4STALLERGENES is Granted a Marketing Authorization for Oralair(R) in Europe 2STALLERGENES is Granted a Marketing Authorization for Oralair(R) in Europe 3Nanowires key to future transistors, electronics 2Nanowires key to future transistors, electronics 3
...aGen to receive approximately $45 million in cash,...ne payments - - Provides updated financ...o be hosted today at 9:00 a.m. EDT -, BRANFORD, C... ), a clinical-stage biopharmaceutical company, an...linostat, a Phase I/II histone,deacetylase inhibit...
...LLE, Calif., April 21 Ortho Evra is an adhesive,t...release 150 mcg of,norelgestromin and 20 mcg of et... It is replaced once a week for three weeks, and n... was approved by the FDA in November,2001, and ove...pproval.,Ortho Evra continues to be marketed aggre...
... Million Net Revenues, $0.03 Net Loss Per Share, ...logies, Inc. (Nasdaq: VNUS ), a leading provider ...tment of venous disease, today announced its,finan... 2008., Net revenues for the first quarter of 200....6 million for the first quarter of 2007. As,expec...
Other Biology Technology:CuraGen Sells Ownership of Belinostat to TopoTarget A/S 2CuraGen Sells Ownership of Belinostat to TopoTarget A/S 3CuraGen Sells Ownership of Belinostat to TopoTarget A/S 4CuraGen Sells Ownership of Belinostat to TopoTarget A/S 5Ortho Evra Patch Makers Settling Cases 2VNUS Medical Technologies Reports First-Quarter 2008 Results: 21% growth in Net Revenues and 51% Growth in Unit Sales 2VNUS Medical Technologies Reports First-Quarter 2008 Results: 21% growth in Net Revenues and 51% Growth in Unit Sales 3VNUS Medical Technologies Reports First-Quarter 2008 Results: 21% growth in Net Revenues and 51% Growth in Unit Sales 4VNUS Medical Technologies Reports First-Quarter 2008 Results: 21% growth in Net Revenues and 51% Growth in Unit Sales 5VNUS Medical Technologies Reports First-Quarter 2008 Results: 21% growth in Net Revenues and 51% Growth in Unit Sales 6VNUS Medical Technologies Reports First-Quarter 2008 Results: 21% growth in Net Revenues and 51% Growth in Unit Sales 7
Human Mesenchymal Stem Cell Functional Identification Kit from R&D Systems
Goat Anti-Human Carnosine Dipeptidase 1 Polyclonal Antibody, Unconjugated from R&D Systems
Rabbit Anti-Syntrophin alpha 1 Polyclonal Antibody, Unconjugated from Abcam
Mouse Anti-VEGF Receptor 1 Monoclonal Antibody, Unconjugated, Clone Flt-1 / EWC from Abcam
Biology Products: