Cadmium uptake by tobacco as affected by liming, N form, and year of cultivation

Tsadilas, Christos; Karaivazoglou, N.A.; Tsotsolis, N.; Stamatiadis, Stamatis; Samaras, V.

doi:10.1016/j.envpol.2004.08.008

Cited by 92 publications

(39 citation statements)

References 8 publications

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“…Continued use of ammonia-based fertilizers can induce soil acidity (Schwab et al, 1990). Results from the study were in agreement with the findings of Tsadilas et al (2005), who reported that the application of ammonium fertilizer significantly decreased soil pH more than the nitrate treatments. Results from a pot fertilizer experiment by Liu et al (2007) showed that application of NH 4 Cl lowered soil pH from 4.51 to 4.07.…”

Section: Resultssupporting

confidence: 82%

Influence of long-term mineral fertilization on metal contents and properties of soil samples taken from different locations in Hesse, Germany

Czarnecki

Düring

2015

SOIL

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Abstract. Essential and non-essential metals occur in soils as a result of weathering, industrial processes, fertilization, and atmospheric deposition. Badly adapted cultivation of agricultural soils (declining pH value, application of unsuitable fertilizers) can enhance the mobility of metals and thereby increase their concentrations in agricultural products. As the enrichment of metals in soils occurs over long time periods, monitoring of the long-term impact of fertilization is necessary to assess metal accumulation in agricultural soils. The main objective of this study was to test the effects of different mineral fertilizer variations on soil properties (pH, C org , and cation exchange capacity (CEC)) and pseudo-total and mobile metal contents of soils after 14 years of fertilizer application and to determine residual effects of the fertilization 8 years after cessation of fertilizer treatment. Soil samples were taken from a field experiment which was carried out at four different locations (210, 260, 360, and 620 m above sea level) in Hesse, Germany. During the study, a significant decrease in soil pH and an evident increase in soil carbon content and cation exchange capacity with fertilization were determined. The CEC of the soils was closely related to their organic C contents. Moreover, pseudo-and mobile metal (Cd, Cu, Mn, Pb, Zn) contents in the soils increased due to application of 14 years of mineral fertilizer treatments (N, P, NP, and NPK) when compared to control plots. Eight years after termination of the fertilization in the soil samples taken from soil profiles of the fertilized plots (NPK) for monitoring the residual effects of the fertilizer application, a decrease of 82.6, 54.2, 48.5, 74.4, and 56.9 % in pseudo-total Cd, Cu, Mn, Pb, and Zn contents, respectively, was determined.

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Section: Resultssupporting

confidence: 82%

Influence of long-term mineral fertilization on metal contents and properties of soil samples taken from different locations in Hesse, Germany

Czarnecki

Düring

2015

SOIL

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“…pH 5 resulted in the highest Cd concentration in the roots, reaching 8.77 mg.kg-1, whereas pH 8 resulted in the lowest rate 0.94 mg.kg-1, which agrees with [18]. Many studies indicated that one of the most important control factors in Cd absorption by the plant is soil acidity, so higher pH values resulted in lesser Cd absorption, and vice versa [19] [13]. The same level it was significantly superior on pH 4 level, this might be due to increased readiness of P to uptake by root at pH 5.2, which consequently led to increased the size of the root and absorption of Cd.…”

Section: Concentration In the Root (Mgkg-1)supporting

confidence: 78%

The Accumulation Of Cadmium In Corn (Zea Mays L.) At Different Levels Of Soil Ph

2016

AJMI

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“…Various locally available industrial by-products may advantageously replace natural materials. They include beringite (Vangronsveld et al, 1996), red mud (Lombi et al, 2002(Lombi et al, , 2003, sterilized crushed bone meal (Hodson et al, 2000), red gypsum, phosphogypsum and dolomitic residue (Illera et al, 2004), and liming agents (although liming alone cannot be considered as a suitable longlasting treatment for metals stabilisation but rather as an enhancer of other amendment effects) (Knox et al, 2001;Tsadilas et al, 2005). Amendments may also be combined (Brown et al, 2003) and, with the exception of the organic amendments, they are usually applied at rates ranging from 0.5% to 5% DM.…”

Section: Introductionmentioning

confidence: 99%

Reduction of Cadmium Availability to Tobacco (Nicotiana tabacum) Plants using Soil Amendments in Low Cadmium-contaminated Agricultural Soils: A Pot Experiment

et al. 2005

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Cadmium (Cd) concentration in field-grown tobacco leaves usually ranges from <0.5 to 5 mg Cd kg À1 dry matter (DM). Reducing bioavailability of soil Cd by adding amendments to the soil could be suitable to mitigate Cd uptake by tobacco plants. However, little is known on the effect of inorganic amendments on agricultural soils with low Cd concentrations. Therefore, we performed a pot experiment with tobacco plants that were grown during 56 days in two neutral to alkaline agricultural soils with low total Cd concentrations (soil 1 = 0.4, soil 2 = 0.7 mg kg À1 ). Both soils were amended or not with 1 or 5% of sepiolite, zeolite, hydroxyapatite and apatite IIä. Major and trace elements were measured in mid-stalk position leaves. Soil metals were measured in a DTPA soil extraction to assess the effect of the amendments on metal bioavailability. Some amendments significantly reduced Cd concentration in tobacco leaves, but the effect differed between the two soils tested. In soil 1, the use of zeolite at the 1% dose was the most efficient, reducing the average Cd concentration from 0.6 to 0.4 mg kg À1 . In soil 2, the 5% hydroxyapatite treatment led to the maximal reduction in Cd concentration (50%), with an average final Cd concentration in leaves of 0.7 mg kg À1 (control: 1.5 mg kg À1 ). There was a dose effect for some amendments in soil 2 (containing more Cd), suggesting a reduced efficiency of the amendment at the lowest addition rate. DTPA extractable Cd and Zn measured at the end of the pot experiment were correlated to the metal concentrations in tobacco leaves suggesting that (1) the reduction in leaf Cd concentration was due to a reduction in metal availability to tobacco and (2) DTPA may be a suitable extractant to estimate Cd availability to tobacco plants in these two soils. In addition, a batch experiment was performed with the same soils to test a larger number of amendments, including the four tested in the pot experiment. Results were compared to those of the pot experiment to assess whether a batch experiment may predict the efficiency of an amendment on a given soil. It gave results compatible with those from the pot experiment except for the sepiolite and highlighted the broad range of potential amendments available for heavy metal remediation in crop plants.

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Cadmium uptake by tobacco as affected by liming, N form, and year of cultivation

Cited by 92 publications

References 8 publications

Influence of long-term mineral fertilization on metal contents and properties of soil samples taken from different locations in Hesse, Germany

Influence of long-term mineral fertilization on metal contents and properties of soil samples taken from different locations in Hesse, Germany

The Accumulation Of Cadmium In Corn (Zea Mays L.) At Different Levels Of Soil Ph

Reduction of Cadmium Availability to Tobacco (Nicotiana tabacum) Plants using Soil Amendments in Low Cadmium-contaminated Agricultural Soils: A Pot Experiment

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