Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments
The intensive use of lead (Pb)-based insecticides (lead arsenate, PbHAsO<sub>4</sub>) has led to Pb accumulation in agricultural soil, endangering human health through the possibility of transferring it to the food chain. The aim of this study was to evaluate the potential for the immobi...
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MDPI AG
2023-02-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/9/2/278 |
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| author | Simona M. Popescu Valtcho D. Zheljazkov Tess Astatkie Marian Burducea Walter C. Termeer |
| author_facet | Simona M. Popescu Valtcho D. Zheljazkov Tess Astatkie Marian Burducea Walter C. Termeer |
| author_sort | Simona M. Popescu |
| collection | DOAJ |
| description | The intensive use of lead (Pb)-based insecticides (lead arsenate, PbHAsO<sub>4</sub>) has led to Pb accumulation in agricultural soil, endangering human health through the possibility of transferring it to the food chain. The aim of this study was to evaluate the potential for the immobilization of Pb in the soil by applying organic (sludge, biocompost, yard compost, and peat) and inorganic (bonemeal, zeolite, lime, and wood ash) amendments, in combination with diammonium phosphate (DAP) in a greenhouse experiment. Two amendment rates were used: low and high, and three rates of DAP: 0 (zero), low (0.25 g of DAP/kg soil), and high (1.25 g DAP/kg soil). The results showed that the dry yield of carrot (<i>Daucus carota</i> susp. <i>sativus</i>) was the highest for the organic amendments in combination with the low rate of DAP. The high rate of inorganic amendments also increased the yield. Applications of inorganic bonemeal, inorganic lime, and inorganic wood ash yielded the lowest Pb tissue concentration (TC), and organic peat had the highest Pb TC. Inorganic bonemeal combined with DAP most effectively immobilized Pb in soil. |
| first_indexed | 2024-03-11T08:45:13Z |
| format | Article |
| id | doaj.art-b29ffe33aff6470d8b6409926b1730d7 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-11T08:45:13Z |
| publishDate | 2023-02-01 |
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| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-b29ffe33aff6470d8b6409926b1730d72023-11-16T20:51:03ZengMDPI AGHorticulturae2311-75242023-02-019227810.3390/horticulturae9020278Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic AmendmentsSimona M. Popescu0Valtcho D. Zheljazkov1Tess Astatkie2Marian Burducea3Walter C. Termeer4Faculty of Horticulture, University of Craiova, Str. A.I. Cuza nr. 13, RO-200585 Craiova, RomaniaCrop and Soil Science Department, Oregon State University, 3050 SW Campus Way, 109 Crop Science Building, Corvallis, OR 97331, USAFaculty of Agriculture, Dalhousie University, 50 Pictou Road, Truro, NS B2N 5E3, CanadaResearch and Development Station for Aquaculture and Aquatic Ecology, Alexandru Ioan Cuza University of Iasi, Carol I Bd. 11, RO-700506 Iasi, RomaniaFundy Compost, Ltd., 1332 Pleasant Valley Rd, Brookfield, NS B0N 1C0, CanadaThe intensive use of lead (Pb)-based insecticides (lead arsenate, PbHAsO<sub>4</sub>) has led to Pb accumulation in agricultural soil, endangering human health through the possibility of transferring it to the food chain. The aim of this study was to evaluate the potential for the immobilization of Pb in the soil by applying organic (sludge, biocompost, yard compost, and peat) and inorganic (bonemeal, zeolite, lime, and wood ash) amendments, in combination with diammonium phosphate (DAP) in a greenhouse experiment. Two amendment rates were used: low and high, and three rates of DAP: 0 (zero), low (0.25 g of DAP/kg soil), and high (1.25 g DAP/kg soil). The results showed that the dry yield of carrot (<i>Daucus carota</i> susp. <i>sativus</i>) was the highest for the organic amendments in combination with the low rate of DAP. The high rate of inorganic amendments also increased the yield. Applications of inorganic bonemeal, inorganic lime, and inorganic wood ash yielded the lowest Pb tissue concentration (TC), and organic peat had the highest Pb TC. Inorganic bonemeal combined with DAP most effectively immobilized Pb in soil.https://www.mdpi.com/2311-7524/9/2/278heavy metalsmetal toxicitysoil amendmentslead contaminationplant uptakeliming |
| spellingShingle | Simona M. Popescu Valtcho D. Zheljazkov Tess Astatkie Marian Burducea Walter C. Termeer Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments Horticulturae heavy metals metal toxicity soil amendments lead contamination plant uptake liming |
| title | Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments |
| title_full | Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments |
| title_fullStr | Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments |
| title_full_unstemmed | Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments |
| title_short | Immobilization of Pb in Contaminated Soils with the Combination Use of Diammonium Phosphate with Organic and Inorganic Amendments |
| title_sort | immobilization of pb in contaminated soils with the combination use of diammonium phosphate with organic and inorganic amendments |
| topic | heavy metals metal toxicity soil amendments lead contamination plant uptake liming |
| url | https://www.mdpi.com/2311-7524/9/2/278 |
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