Pesticide residues in Hungarian soils

Oldal, Bálint; Maloschik, Erik; Uzinger, Nikolett; Anton, Attila; Székacs, András

doi:10.1016/j.geoderma.2005.11.011

Cited by 24 publications

(5 citation statements)

References 23 publications

(17 reference statements)

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“…Fine suspended solids were considered to be essential carriers of pesticides. Pesticide active ingredients and residues in soil and groundwater samples were measured during the 2002-winter in Hungary (Oldal et al, 2006). Atrazine was detected in two soil samples at concentrations of 0.07 g/g and 0.11 g/g.…”

Section: Toxicologymentioning

confidence: 99%

Pesticides and Herbicides

Chelme-Ayala¹,

Li²,

Nour³

et al. 2007

Water Environment Research

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Section: Toxicologymentioning

confidence: 99%

Pesticides and Herbicides

Chelme-Ayala¹,

Li²,

Nour³

et al. 2007

Water Environment Research

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“…The GC-MS parameters and soil extraction procedure were carried out according to the published method (Oldal et al, 2006). Degradation rate and half-life of the ingredient were calculated from these results.…”

Section: Introductionmentioning

confidence: 99%

“…Investigation of acetochlor has a great importance in environmental protection, as its high leaching potential often leads to widespread surface and groundwater pollution (Oldal et al, 2006). Furthermore, the ingredient destroys the original composition and structure of soil microorganism communities, resulting in a decline of functional diversities and metabolic activities (Su et al, 2007).…”

mentioning

confidence: 99%

Monitoring of herbicide effect in maize based on electrical measurements

Cseresnyés

Fekete

Végh

et al. 2012

International Agrophysics

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A b s t r a c t. The effect of the herbicide acetochlor on root growth was studied by a non-destructive electrical impedance and capacitance method in pot experiments on maize. Acetochlor was applied both as single active ingredient and mixed with safener AD-67 in two dosages. Without safener addition, acetochlor had a permanent inhibiting effect on plant root expansion. The safener AD-67 was capable of providing protective effect against herbicide application. High correlations between root electrical impedance or capacitance and the root dry mass or surface area under our laboratory conditions were confirmed by plant harvest method. Root electrical impedance and capacitance measurements proved to be valid for monitoring the effect of the herbicide influencing root development and for distinguishing plant groups subjected to different stress conditions. K e y w o r d s: acetochlor, electrical capacitance, electrical impedance, maize, root growth INTRODUCTIONWater and nutrient uptake is a key function of plant roots. Conventional root investigation methods ie soil cores, monoliths, in-growth cores are inefficient and inherently destructive, thus unadapted for continuous monitoring of root growth. Non-destructive techniques, such as minirhizotron, isotopes, magnetic resonance imaging (MRI), X-ray imaging or ground penetrating radar also have their own limitations (Cao et al., 2010).Electrical impedance (EI) and capacitance (EC) measurements are capable to provide an assessment about in situ root status without plant damaging. The EC method was first developed by Chloupek (1972) using several crop plants under greenhouse and field conditions. Root EI and EC proved to be directly correlated with various root properties, such as fresh or dry weight, root surface area and root volume. Dalton (1995) presented a conceptual model in which root surface was considered to be the surface area of a group of cylindrical condensers. Since electrical attributes are sensitive to edaphic factors, the effect of soil type, soil water saturation and ionic status, as well as plant electrode placement can be considered at using electrical measurements (Dalton, 1995;Ozier-Lafontaine and Bajazet, 2005).The EI and EC method have been used to demonstrate the response of plants to different abiotic and biotic stress factors: cold acclimation, freeze-thaw injury, drought stress, nutrient deficiency or pathogen infection can be detected by electrical measurement (Greenham et al., 1982;Higgins et al., 1977;Räisänen et al., 2007;Repo et al., 1994). Since root EI and EC depend on root mass or on active root surface, the method appears to be valid for monitoring the effect of chemicals exerting influence on root expansion. Acetochlor is a herbicide active ingredient of the chloroacetanilide family, used as a pre-emergent and early post-emergent agent for the control of annual grasses and dicotyledonous weeds on maize fields. It acts as a growth inhibitor by suppressing the anabolic pathways of fatty acids, proteins and gibberellic acids (Abu-Qar...

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“…Non-point pollution from agriculture has taken a serious toll on groundwater according to the survey from home and abroad [1][2][3][4][5]. Pesticide has become a kind of global organic pollutants in groundwater, the pollution from soil and groundwater brought by which has been so badly [6][7][8][9][10][11]. It is the hot issue to research the process and degree of pollution from organophosphorus when it migrated into the groundwater with percolating water.…”

Section: Introductionmentioning

confidence: 99%

Research on the Migration Characteristics of Organophosphorus in Clay

Zhang

Song

et al. 2012

AMR

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In order to study the migration characters of organophosphorus in clay, experiment was designed to simulate the process of organophosphor leakage permeating the aquitard, searching the migration characters of organophosphorus in clay with different pH. It is shown that the ability of migration of organophosphor leakage permeating the cohesive soil fall with increase of pH between7.5 and 9.5, and the extent of mineralization for organophosphor in clay rise with increase of pH.

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Pesticide residues in Hungarian soils

Cited by 24 publications

References 23 publications

Pesticides and Herbicides

Pesticides and Herbicides

Monitoring of herbicide effect in maize based on electrical measurements

Research on the Migration Characteristics of Organophosphorus in Clay

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