NDLI: Empirical and Mechanistic Evaluation of NH 4 + Release Kinetic in Calcareous Soils

Content Provider	Springer Nature Link
Author	Ranjbar, F. Jalali, M.
Copyright Year	2014
Abstract	Release, fixation, and distribution of ammonium (NH 4 + ) as a source of nitrogen can play an important role in soil fertility and plant nutrition. In this study, ten surface soils, after addition of 1,000 mg NH 4 + kg−1, were incubated for 1 week at the field capacity moisture and 25 ± 2 °C temperature, and then NH 4 + release kinetic was investigated by sequential extractions with 10 mM CaCl2. Furthermore, NH 4 + distribution among three fractions, including water-soluble, exchangeable, and non-exchangeable, was determined in all soil samples. NH 4 + release was initially rapid followed by a slower reaction, and this was described well with the Elovich equation as an empirical model. The cumulative NH 4 + concentration released in spiked soil samples had a positive significant correlation with sand content and negative ones with pH, exchangeable Ca2+m and K+, cation exchange capacity (CEC), equivalent calcium carbonate (ECC), and clay content. The cation exchange model in the PHREEQC program was successful in mechanistic simulation of the release trend of native and added NH 4 + in all control and spiked soil samples. The results of fractionation experiments showed that the non-exchangeable fraction in control and spiked soil samples was greater than that in water-soluble and exchangeable fractions. Soil properties, such as pH, exchangeable Ca2+ and K+, CEC, ECC, and contents of sand and clay, had significant influences on the distribution of NH 4 + among three measured fractions. This study indicated that both native and recently fixed NH 4 + , added to soil through the application of fertilizers, were readily available for plant roots during 1 week after exposure.
Starting Page	606
Ending Page	615
Page Count	10
File Format	PDF
ISSN	00904341
Journal	Archives of Environmental Contamination and Toxicology
Volume Number	66
Issue Number	4
e-ISSN	14320703
Language	English
Publisher	Springer US
Publisher Date	2014-01-29
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecotoxicology Pollution Environmental Health Environmental Chemistry Soil Science & Conservation Environmental Monitoring/Analysis
Content Type	Text
Resource Type	Article
Subject	Pollution Health, Toxicology and Mutagenesis Medicine Toxicology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Metal Contamination Disturbs Biochemical and Microbial Properties of Calcareous Agricultural Soils of the Mediterranean Area

Bioavailability of Copper and Zinc in Mining Soils

Author’s Response

Ecotoxicity of Cr, Cd, and Pb on Two Mediterranean Soils

Solid-Phase Control on Lead Bioaccessibility in Smelter-Impacted Soils

Sorption of Chlorophenolates in Soils and Aquifer and Marine Sediments

Influence of Mercury Speciation and Fractionation on Bioaccessibility in Soils

Children’s Exposure to Mercury-Contaminated Soils: Exposure Assessment and Risk Characterization

Effects of Copper in Flooded Florida Agricultural Soils on Hyalella azteca

Empirical and Mechanistic Evaluation of NH 4 + Release Kinetic in Calcareous Soils

Similar Documents

Metal Contamination Disturbs Biochemical and Microbial Properties of Calcareous Agricultural Soils of the Mediterranean Area

Bioavailability of Copper and Zinc in Mining Soils

Author’s Response

Ecotoxicity of Cr, Cd, and Pb on Two Mediterranean Soils

Solid-Phase Control on Lead Bioaccessibility in Smelter-Impacted Soils

Sorption of Chlorophenolates in Soils and Aquifer and Marine Sediments

Influence of Mercury Speciation and Fractionation on Bioaccessibility in Soils

Children’s Exposure to Mercury-Contaminated Soils: Exposure Assessment and Risk Characterization

Effects of Copper in Flooded Florida Agricultural Soils on Hyalella azteca

Empirical and Mechanistic Evaluation of NH 4 + Release Kinetic in Calcareous Soils