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The effect of nitrogen form on rhizosphere soil pH and zinc phytoextraction by Thlaspi caerulescens.
Chemosphere. 2008 Oct; 73(5):635-42.C

Abstract

The phytoextraction of Zn may be improved by applying N fertilizers to increase the biomass and Zn content of shoots. Rhizosphere-pH change from uptake of different N forms will affect Zn phyto-availability in the rhizosphere and Zn phytoextraction. This glasshouse study examined the effect of N form on Zn phytoextraction by Thlaspi caerulescens (Prayon). The plants were grown in a Zn-contaminated soil (total Zn 250 mg kg-1 soil; pHwater 5.7) and supplied with (NH4)2SO4, Ca(NO3)2 or urea [(NH2)2CO]. The form was maintained by applying the nitrification inhibitor dicyandiamide. A biodegradable chelator ethylenediaminedisuccinic acid (EDDS) was included for comparison. The addition of N doubled the shoot biomass. The highest shoot Zn content occurred in the Ca(NO3)2 treatment and was associated with the highest rhizosphere pH. The lowest shoot dry weight occurred in the EDDS treatment. The Zn concentration in the shoots increased as the rhizosphere pH increased. A significant correlation occurred between Ca and Zn concentrations in the shoots. This study demonstrated that Ca(NO3)2 is a more effective treatment than , urea or EDDS for enhancing Zn phytoextraction in a mildly acidic soil.

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Authors+Show Affiliations

Monsant AC
Department of Agricultural Sciences, La Trobe University, Bundoora, Vic 3086, Australia. ac4monsant@students.latrobe.edu.au
Tang C
No affiliation info available
Baker AJ
No affiliation info available

MeSH

EthylenediaminesHydrogen-Ion ConcentrationNitrogenPlant RootsSoil PollutantsSuccinatesThlaspiZinc

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18752830

Citation

Monsant, A C., et al. "The Effect of Nitrogen Form On Rhizosphere Soil pH and Zinc Phytoextraction By Thlaspi Caerulescens." Chemosphere, vol. 73, no. 5, 2008, pp. 635-42.
Monsant AC, Tang C, Baker AJ. The effect of nitrogen form on rhizosphere soil pH and zinc phytoextraction by Thlaspi caerulescens. Chemosphere. 2008;73(5):635-42.
Monsant, A. C., Tang, C., & Baker, A. J. (2008). The effect of nitrogen form on rhizosphere soil pH and zinc phytoextraction by Thlaspi caerulescens. Chemosphere, 73(5), 635-42. https://doi.org/10.1016/j.chemosphere.2008.07.034
Monsant AC, Tang C, Baker AJ. The Effect of Nitrogen Form On Rhizosphere Soil pH and Zinc Phytoextraction By Thlaspi Caerulescens. Chemosphere. 2008;73(5):635-42. PubMed PMID: 18752830.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of nitrogen form on rhizosphere soil pH and zinc phytoextraction by Thlaspi caerulescens. AU - Monsant,A C, AU - Tang,C, AU - Baker,A J M, PY - 2008/01/17/received PY - 2008/07/14/revised PY - 2008/07/14/accepted PY - 2008/8/30/pubmed PY - 2008/12/23/medline PY - 2008/8/30/entrez SP - 635 EP - 42 JF - Chemosphere JO - Chemosphere VL - 73 IS - 5 N2 - The phytoextraction of Zn may be improved by applying N fertilizers to increase the biomass and Zn content of shoots. Rhizosphere-pH change from uptake of different N forms will affect Zn phyto-availability in the rhizosphere and Zn phytoextraction. This glasshouse study examined the effect of N form on Zn phytoextraction by Thlaspi caerulescens (Prayon). The plants were grown in a Zn-contaminated soil (total Zn 250 mg kg-1 soil; pHwater 5.7) and supplied with (NH4)2SO4, Ca(NO3)2 or urea [(NH2)2CO]. The form was maintained by applying the nitrification inhibitor dicyandiamide. A biodegradable chelator ethylenediaminedisuccinic acid (EDDS) was included for comparison. The addition of N doubled the shoot biomass. The highest shoot Zn content occurred in the Ca(NO3)2 treatment and was associated with the highest rhizosphere pH. The lowest shoot dry weight occurred in the EDDS treatment. The Zn concentration in the shoots increased as the rhizosphere pH increased. A significant correlation occurred between Ca and Zn concentrations in the shoots. This study demonstrated that Ca(NO3)2 is a more effective treatment than , urea or EDDS for enhancing Zn phytoextraction in a mildly acidic soil. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/18752830/The_effect_of_nitrogen_form_on_rhizosphere_soil_pH_and_zinc_phytoextraction_by_Thlaspi_caerulescens_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(08)00920-X DB - PRIME DP - Unbound Medicine ER -