HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (6) Citing Articles via Google Scholar Google Scholar Articles by Sukkariyah, B. F. Articles by Chaney, R. L. Search for Related Content PubMed PubMed Citation Articles by Sukkariyah, B. F. Articles by Chaney, R. L. Agricola Articles by Sukkariyah, B. F. Articles by Chaney, R. L. Related Collections Vegetable Crops Municipal Waste Heavy Metals Plant and Soil Interactions

TECHNICAL REPORTS

Heavy Metals in the Environment

Cadmium, Copper, Nickel, and Zinc Availability in a Biosolids-Amended Piedmont Soil Years after Application

^a Dep. of Crop and Soil Environmental Sciences, Virginia Polytechnic Inst. and State Univ., Blacksburg, VA 24060
^b USDA-ARS-AMBL, Beltsville, MD 20705

^* Corresponding author (bsukkari{at}vt.edu)

Received for publication September 28, 2004. Concerns over the possible increase in phytoavailability of biosolids-applied trace metals to plants have been raised based on the assumption that decomposition of applied organic matter would increase phytoavailability. The objectives of this study were to assess the effect of time on chemical extractability and concentration of Cd, Cu, Ni, and Zn in plants on plots established by a single application of biosolids with high trace metals content in 1984. Biosolids were applied to 1.5 by 2.3 m confined plots of a Davidson clay loam (clayey, kaolinitic, thermic Rhodic Kandiudults) at 0, 42, 84, 126, 168, and 210 Mg ha^–1. The highest biosolids application supplied 4.5, 760, 43, and 620 kg ha^–1 of Cd, Cu, Ni, and Zn, respectively. Radish (Raphanus sativus L.), romaine lettuce (Lactuca sativa L. var. longifolia), and barley (Hordeum vulgare L.) were planted at the site for 3 consecutive years, 17 to 19 yr after biosolids application. Extractable Cd, Cu, Ni, and Zn (as measured by DTPA, CaCl_2, and Mehlich-1) were determined on 15-cm depth samples from each plot. The DTPA-extractable Cu and Zn decreased by 58 and 42%, respectively, 17 yr after application despite a significant reduction in organic matter content. Biosolids treatments had no significant effect on crop yield. Plant tissue metal concentrations increased with biosolids rate but were within the normal range of these crops. Trace metal concentrations in plants generally correlated well with the concentrations extracted from soil with DTPA, CaCl₂, and Mehlich-1. Metal concentrations in plant tissue exhibited a plateau response in most cases. The uptake coefficient values generated for the different crops were in agreement with the values set by the Part 503 Rule.

Abbreviations: ADSS, aerobically digested sewage sludge • ANOVA, analysis of variance • CEC, cation exchange capacity • DTPA, diethylenetriaminepentaacetic acid • EQ, exceptional quality • ICP-AES, inductively coupled plasma–atomic emission spectrometer • LSD, least significant difference • NPAREC, Northern Piedmont Agricultural Research and Extension Center • OM, organic matter • UC, uptake coefficients • USEPA, United States Environmental Protection Agency • VCE, Virginia Cooperative Extension

This article has been cited by other articles:

				K. A. Barbarick and J. A. Ippolito Nutrient Assessment of a Dryland Wheat Agroecosystem after 12 Years of Biosolids Applications Agron. J., April 4, 2007; 99(3): 715 - 722. [Abstract] [Full Text] [PDF]

				V. Antoniadis, C. D. Tsadilas, and S. Stamatiadis Effect of Dissolved Organic Carbon on Zinc Solubility in Incubated Biosolids-Amended Soils J. Environ. Qual., January 25, 2007; 36(2): 379 - 385. [Abstract] [Full Text] [PDF]