Tillage Management Effects on Pesticide Fate in Soils

Alletto, Lionel; Coquet, Yves; Benoît, Pierre; Heddadj, Djilali; Barriuso, Enrique

doi:10.1007/978-94-007-0394-0_35

Cited by 11 publications

(14 citation statements)

References 167 publications

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“…Various work at different scales and in different geographic settings focussed on connectivity within the hillslope–riparian–stream (HRS) system in low‐gradient (Jackson et al ., ; Klaus et al ., ) and steep (McGlynn and McDonnell, ; Detty and McGuire, ) environments and its spatial patterns (Jencso et al ., ; Jencso and McGlynn, ). Hydrological connectivity can be strongly non‐linear and controls streamflow response (Zehe et al ., ; Detty and McGuire, ; Gannon et al ., ; Tetzlaff et al ., ) and stream chemistry (Burt and Pinay, ), preferential flow and solute transport (Alletto et al, ; Klaus and Zehe , ; Klaus et al ., ). Eventually, it is a hydrologic process that is relevant from hillslopes (Lehmann et al ., ; Jackson et al ., ), over headwaters (Jencso et al ., , ), to landscapes (Tetzlaff et al ., ).…”

Section: Introductionmentioning

confidence: 99%

A tracer to bridge the scales: on the value of diatoms for tracing fast flow path connectivity from headwaters to meso‐scale catchments

Klaus

Wetzel

Martínez‐Carreras

et al. 2015

Hydrological Processes

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Abstract:Connectivity between different landscape units and flow paths to the stream has gained much attention in hydrological science. Recent work has focused on the threshold sequencing of spatial sources in upland forested watersheds, connectivity and its spatial patterns in the hillslope-riparian-stream continuum. Fast flow path connectivity in the HRS continuum is still difficult to decipher because of the scale-limitations of hydrometric and tracer methods. Such connectivity may be strongly non-linear and controls streamflow response and chemistry. Recently, diatoms, one of the most common and diverse algal groups, were used to detect the onset and cessation of surface runoff to small headwater streams and constrain hydrograph separation methods. In this work, we investigate the potential for diatoms to determine fast flow path connectivity between their habitat and the stream over various scaled catchments. We used seven nested sub-catchments (0.45 to 247 km 2 ) with uniform and mixed geologies and land use types within the Attert River catchment (Luxembourg) for testing our hypothesis. We categorized the prevailing diatom communities based on their habitat in the hillslope-riparian-stream continuum of one headwater catchment and sampled a storm event for diatom communities in every catchment. We present the diatom dynamics during the event hydrograph. We also outline different occurring species of diatoms and present that combinations of species or individual species can be used as a tracer for source area connectivity. Further, we show that the occurrence of aerial diatom species decreases by a power law with scale, potentially limiting the scale of application. Finally, we discuss how diatoms could indicate temporal variability of contributions from different physiographic units.

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Section: Introductionmentioning

confidence: 99%

A tracer to bridge the scales: on the value of diatoms for tracing fast flow path connectivity from headwaters to meso‐scale catchments

Klaus

Wetzel

Martínez‐Carreras

et al. 2015

Hydrological Processes

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“…No-tillage is also known as conservation tillage. It involves direct seeding or transplanting in the original stubble, without the use of tools for soil management during all growth periods after seeding (Alletto et al, 2010). At present, research has been conducted in nearly 30 countries.…”

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confidence: 99%

Nitrogen Uptake and Utilization by No-Tillage Rice under Different Soil Moisture Conditions – A Model Study under Simulated Soil Conditions

CaiLing

Xu²,

Liu

et al. 2015

Plant Production Science

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“…However, in both years, the LD 50 values estimated using HPLC analysis were not within the range of values (8 to 35 d) based on chemical analyses reported in the literature (Gennari et al 1998; PPDB 2009). One possible reason for the shorter half-lives of PSC in this study could be enhanced soil biodegradation due to a history of repeated applications of the herbicide (Alletto et al 2010). When degradation is enhanced, herbicide efficacy is lessened, possibly resulting in reduced crop yields (Chung 2000).…”

Section: Resultsmentioning

confidence: 94%

“…PSC persistence in the environment is mainly influenced by its bioavailability in the soil (Gennari et al 2002). The period during which a herbicide persists in the soil is the result of a series of transformation and removal processes that are strongly linked to local climate and soil conditions (Alletto et al 2010). Studies dealing with the degradation and dissipation of PSC in various environmental compartments generally report biodegradation to be the main process responsible for its dissipation in soil (Gennari et al 1998; Rouchaud et al 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Crop management strategies such as tillage practices can also influence the fate of the compound in soil by modifying its bioavailability and degradation rate (Chauhan et al 2006; Fomsgaard et al 2003), though information on the effects of tillage on PSC efficacy and dissipation are not currently available. The adoption of conservation tillage (CT) practices, in which soil disturbance is reduced, is being promoted due to its economic and environmental benefits compared with conventional tillage (Alletto et al 2010; Melander et al 2013; Morris et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Tillage Systems on the Dissipation of Prosulfocarb Herbicide

et al. 2017

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Crop management practices such as tillage can influence the dissipation of herbicides in soil. This study aimed to determine the effects of tillage systems on soil dissipation of prosulfocarb (PSC) using two assessment methods: bioassay and high-performance liquid chromatography (HPLC) analysis. PSC was applied on plots cultivated under three tillage systems (moldboard plowing, tine tillage at 8- to 10-cm soil depth, and direct drilling) at different rates (0, 500, 1,000, 2,000, 4,000 and 8,000 g ai ha−1) and two spraying times, representing early and late sowing time of winter cereals in Denmark. The experiment was conducted over 2 yr. The soil was analyzed for PSC residues by HPLC and a bioassay, using silky windgrass as the indicator plant. Neither technique revealed an effect of tillage systems on PSC dissipation, but the LD50values estimated based on the bioassays were generally lower under direct drilling (11.7 d) than with plowing (17.5 d). Moreover, LD50estimates based on bioassay results were generally lower than those estimated with HPLC analyses. Half-life values estimated with HPLC were low and not within the range of values reported in the literature (ca. 20 d), suggesting enhanced degradation of PSC. In addition to influencing the performance of PSC against problematic weed species, an enhanced dissipation rate could also hamper the benefits of PSC in an antiresistance strategy.

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Tillage Management Effects on Pesticide Fate in Soils

Cited by 11 publications

References 167 publications

A tracer to bridge the scales: on the value of diatoms for tracing fast flow path connectivity from headwaters to meso‐scale catchments

A tracer to bridge the scales: on the value of diatoms for tracing fast flow path connectivity from headwaters to meso‐scale catchments

Nitrogen Uptake and Utilization by No-Tillage Rice under Different Soil Moisture Conditions – A Model Study under Simulated Soil Conditions

Effect of Tillage Systems on the Dissipation of Prosulfocarb Herbicide

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