Navigation Links
Understanding phosphorus in soils is vital to proper management

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
Soil Science Society of America

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:
(Date:7/29/2014)... a major role in locomotion. Swimming microorganisms, such as ... forces compared to the viscous forces exerted by the ... major challenge. Now, scientists have found that the direction ... to that induced by a viscoelastic fluid. These findings ... Franois Nadal from the Alternative Energies and Atomic Energy ...
(Date:7/29/2014)... Northern Territories in Canada and have sent smoke drifting ... on. NASA,s Aqua satellite collected this natural-color image ... July 26, 2014. Actively burning areas, detected by MODIS,s ... smoke are drifting northward in this image. Smoke ... Fire has caused power outages in the area and ...
(Date:7/29/2014)... from scientists at the University of Kent has shown ... are regulated a breakthrough that could have a ... from Kent,s School of Biosciences uncovered the mechanism whereby ... known as actin filaments are ,fine-tuned, to ... filaments appear to completely stable, providing a framework for ...
Breaking Biology News(10 mins):Optimum inertial self-propulsion design for snowman-like nanorobot 2
... Athens, Ga. Fish play a far more important role ... according to researchers at the University of Georgia and Florida ... Ecology , they show that fish contribute more nutrients ... changes in the growth rates of the organisms at the ...
... a reason to be glad about madder: The climbing plant has ... Rice University and the City College of New York have discovered ... of purpurin, an organic dye that can be turned into a ... used since ancient times to create dye for fabrics. ...
... of Anatomist,s (AAA) Young Investigator,Awards combine three ... Morphological Sciences Award, all recognizing investigators in ... have made important contributions to biomedical science ... biology, comparative neuroanatomy, or the morphological sciences. ...
Cached Biology News:Fish have enormous nutrient impacts on marine ecosystems, study finds 2Fish have enormous nutrient impacts on marine ecosystems, study finds 3Rice cultivates green batteries from plant 2Rice cultivates green batteries from plant 3Young Investigator Award winners announced by Anatomy Society 2
(Date:7/29/2014)... San Diego, CA (PRWEB) July 29, 2014 ... added to’s centrifugation product selection. Eppendorf 5427 R ... reverse engineering, and DNA – it is targeted towards ... the Eppendorf Centrifuge 5427 R as it compliments their ... as their Eppendorf line of microcentrifuge tubes, PCR tubes, ...
(Date:7/29/2014)... Acres, FL (PRWEB) July 29, 2014 ... ex situ lift out specimen preparation solutions, has been ... Trademark Office for specimen manipulation methods incorporating a unique ... 8,740,209. This is the second company patent for ... A. Giannuzzi. , These complementary patents extend ...
(Date:7/28/2014)... 2014 The Workgroup for Electronic Data ... use of health IT to create efficiencies in healthcare ... (HPID) Workgroup has developed an issue brief titled, ... Payer?” The HPID Workgroup, a part of WEDI’s Strategic ... for Medicare and Medicaid Services (CMS) to identify common ...
(Date:7/28/2014)... July 28, 2014 Research and Markets ... Synthetic Biology Market 2014-2018" report to their offering. ... The term synthetic biology covers the designing and engineering ... well as the redesigning of natural biological systems that ... be a form of extreme genetic engineering because it ...
Breaking Biology Technology:International Pipette Distributor, Announces the Addition of the Eppendorf Centrifuge 5427 R to Their Product Portfolio 2EXpressLO LLC Granted Second U.S. Patent for Innovative Specimen Preparation Methods 2WEDI’s HPID Workgroup Announces Release of Issue Brief: “What is the Difference Between a Health Plan and Payer?” 2Global Synthetic Biology Market 2014-2018 2
... LOUIS , Aug. 3 K-V Pharmaceutical Company (NYSE: ... engaged BDO USA, LLP ("BDO") as the Company,s independent registered accounting firm. , ... The Company and BDO will ... 2010 Form 10-K and will then follow with the review of its quarterly ...
... QUÉBEC CITY, Aug. 3 /PRNewswire-FirstCall/ - Aeterna Zentaris ... late-stage drug development company specialized in oncology and endocrinology, today ... Paul Blake , MD, will present a corporate overview ... Thursday, August 12, 2010 , at 3:00 p.m. ...
... , ALISO VIEJO, Calif. , Aug. 3 ... ) today announced that the Company will present at the 30th Annual ... 5:00 p.m. Eastern time ( 2:00 p.m. Pacific time ) at ... provides participating companies with the opportunity to present to institutional investors and ...
Cached Biology Technology:K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 2K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 3K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 4K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 5K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 6K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 7K-V Pharmaceutical Company Engages BDO USA, LLP as Independent Registered Accountants 8AVANIR to Present at the Canaccord Genuity Growth Conference 2