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

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:1/22/2015)... Inc. (NASDAQ: NXTD and NXTDW) a biometric authentication company ... of the Wocket™ smart wallet at CES 2015 in Las ... one of the "11 Hot Products at CES" in a review published ... Far" by Newseveryday.com and "The top 10 gadgets from CES 2015" by ...
(Date:1/22/2015)... EyeLock, Inc. , a market leader of iris-based identity authentication ... to the new role of Senior Vice President of Mobile ... mobile platforms and wearable solutions for EyeLock,s technologies. Gerber brings ... semiconductor industry to his role at EyeLock, with expertise in ...
(Date:12/22/2014)... 2014 Holiday Season may be the brightest ever for ... the long anticipated floodgates for consumer biometrics may finally ... phones, tablets, and wearable mobile devices that incorporate biometrics ... with nearly 4.8 billion biometric devices by 2020.   ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2
... do some microorganisms manage to exist and even thrive ... A team of scientists from the Weizmann Institute's Plant ... that a switch in just two amino acids (the ... functioning best at moderate temperatures and being adapted to ...
... 20 and older has risen from about 5.1 percent to ... Health (NIH) and the Centers for Disease Control and Prevention ... 1994 and 1999 to 2002. However, the percentage of ... years studied. About 2.8 percent of U.S. adult--one-third of ...
... Lauren Gerson, MD, so overjoyed are they at hearing her ... eat chocolate. Indulge your passion for spicy cuisine. Drink red ... juice with breakfast and, what the heck, eat a grapefruit, ... evidence to support the notion that eating these foods will ...
Cached Biology News:Bacteria beat the heat 2One-third of adults with diabetes still don't know they have it 2One-third of adults with diabetes still don't know they have it 3One-third of adults with diabetes still don't know they have it 4Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds 2Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds 3Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds 4
(Date:1/22/2015)... / Rootstown, OH (PRWEB) January 22, 2015 ... platform, announced today that it has received AOAC-PTM Certifications for ... O1O3, O111, O121, and O145; collectively referred to as STEC ... O157, at 1 colony forming unit (cfu) per 325 g ...
(Date:1/22/2015)... WI (PRWEB) January 22, 2015 Dr. Greg ... the 12th annual Scripps Natural Supplements Pre-Conference seminar on probiotics ... Conference is an annual continuing education conference for health care ... and included the topic of probiotics in health. Dr. Leyer ...
(Date:1/22/2015)... January 22, 2015 Diagenode, Inc., ... as the Bioruptor® and complete solutions for epigenetics ... chromatin immunoprecipitation, alleviating the need for manual processing. ... needed for ChIP of histones or transcription factors ...
(Date:1/22/2015)... Medical Systems (NYSE: VAR ), world leader in ... to sustainability with inclusion on a prestigious list of the ... equipment company among the Corporate Knights Global 100 Most Sustainable ... Davos, Switzerland . "We ...
Breaking Biology Technology:Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2Varian Honored Among World's 100 Most Sustainable Corporations 2
... What and When, Additional results from the ... pioGlitazOne) published,today in Circulation revealed that reduced progression ... was,associated with increased levels of HDL cholesterol (HDL-C, ... increased effect on HDL-C levels at 24 weeks ...
... April 15 Pacira Pharmaceuticals, Inc. today,announced ... the,development of sustained release injectable products based ... companies will work,together to enhance the dosing ... development pipeline. The goal of the collaboration ...
... Inc.,(Nasdaq: BNVI ) will present findings on the ... and BN108 at the American Association of,Cancer Research (AACR) ... San,Diego, CA, April 12 - 16, 2008., Bionovo,s ... (cell death) induced by BN107 and BN108. As explained ...
Cached Biology Technology:New Data Published in Circulation Showed an Increase in HDL Cholesterol Levels with ACTOS(R) (pioglitazone HCl) 2New Data Published in Circulation Showed an Increase in HDL Cholesterol Levels with ACTOS(R) (pioglitazone HCl) 3Pacira Pharmaceuticals, Inc. Expands Development Collaborations for DepoFoam(R) 2Bionovo to Present Recent Findings of BN107 and BN108, Its Anticancer Agents, at the American Association of Cancer Research 2
...
sTNF-receptor I Polyclonal Antibody 100 ug affinity purified rabbit anti-human sTNF-receptor I polyclonal antibody. Performs well in WB/Elisa/Neutralization....
...
... perfusion system for small volumes of ... or general liquid-handling research applications. ... microliters of precious drugs. Switch between ... from a single tip. Minimize ...
Biology Products: