Effect of non‐ionic nonylphenol surfactants on surface physicochemical properties, uptake and distribution of asulam and diflufenican

Sharma, S. D.; Kirkwood, R. C.; Whateley, Tony L.

doi:10.1111/j.1365-3180.1996.tb01652.x

Cited by 25 publications

(27 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Properties of adjuvant increase herbicide activity through mechanisms such as droplet adhesion, retention, spreading, deposit formation, uptake and translocation (Bruce and Carey 1996;Sharma et al 1996). Moreover some research indicates that adjuvants can reduce leaching of herbicide through the soil profile (Reddy 1993).…”

Section: Discussionmentioning

confidence: 99%

Changes in Application System - Influence on Herbicides Residue in Soil and Sugar Beet Roots

Kucharski¹

2009

Journal of Plant Protection Research

View full text Add to dashboard Cite

Abstract:The aim of performed investigation was to evaluate the influence of changes in herbicide application system on herbicide residues in soil and sugar beet roots. Chemical weed control in sugar beet was carried out by herbicides that included substances such as phenmedipham, desmedipham, ethofumesate, metamitron, triflusulfuron and surfactant adjuvant applied in three different systems: two times application at bare soil (preemergence) and postemergence application (weeds in phase of 2-4 leaves) -system "A", 3 times split, postemergence application (full dose of herbicide mixture) -system "B" and 4 times application at 7 to 10 day intervals starting at the beginning of weed emergence -system "C". Samples of soil and roots of sugar beet were taken at the day of lifting.Herbicide residues were analysed using HPLC with UV-detection. At lifting time, in soil samples, where herbicides were applied in system "A", the residues of metamitron amounted from 0.0097 to 0.0132 mg/kg. Sum of all detected residues of applied substances amounted 0.0341-0.0458 mg/kg. In sugar beet root samples, the residues amounted to respectively, 0.0049-0.0064 and 0.0136-0.0247 mg/kg. The application of herbicides in "B" and "C" systems caused a significant decrease of residues by about 50% (system "B") and 65% (system "C") on average, in comparison with results obtained for herbicide application in "A" system. Residues of active substances determined in roots of sugar beet did not exceed acceptable limits (MRLs).

show abstract

Section: Discussionmentioning

confidence: 99%

Changes in Application System - Influence on Herbicides Residue in Soil and Sugar Beet Roots

Kucharski¹

2009

Journal of Plant Protection Research

View full text Add to dashboard Cite

show abstract

“…However, there have been comparatively few systematic studies to explore surfactant structure-uptake enhancement relationships. For EO-based surfactants, enhancement efficiency varies with EO content (HLB) and the physico-chemical properties of the pesticide (water solubility and log octanol-water partition coefficient (P) Holloway and Edgerton, 1992;Stock et aI., 1993;van Toor et al, 1995;Sharma et al, 1996). Thus uptake of water-soluble pesticides (e.g.…”

Section: Uptake and Translocationmentioning

confidence: 99%

Improving agrochemical performance: possible mechanisms for adjuvancy

Holloway¹

1998

Chemistry and Technology of Agrochemical Formulations

View full text Add to dashboard Cite

“…Properties of adjuvants increase herbicide activity through mechanisms such as droplet adhesion, retention, spreading, deposit formation, uptake and translocation. These adjuvant properties can be chemical, physical or biological in nature (Bruce and Carey 1996;Sharma et al 1996). Only a few literature references report the effects of tank mix adjuvants on pre-emergence herbicides (McMullan et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Degradation Rate of Chloridazon in Soil as Influenced by Adjuvants

Kucharski¹,

Sadowski²,

Domaradzki³

2012

Journal of Plant Protection Research

View full text Add to dashboard Cite

Abstract:The aim of this work was to evaluate the influence of an adjuvant addition on chloridazon degradation rate in soil. The experiment was carried out under controlled laboratory conditions. Chloridazon was applied alone and in a mixture with three different adjuvants: oil, surfactant and multicomponent (used for preemergence application). Chloridazon residue was analysed using gas chromatography with electron capture detector (GC/ECD). Good linearity was found between logarithmic concentration of chloridazon residues and time. The addition of oil and surfactant adjuvants slowed down the degradation of chloridazon in soil. The DT 50 values for the mixture of chloridazon + oil and surfactant adjuvants was about 8-14 days higher in comparison with the DT 50 for chloridazon applied alone (43 days). No significant differences were observed between degradation rates and the DT 50 for chloridazon applied alone and with a multicomponent adjuvant.

show abstract

Effect of non‐ionic nonylphenol surfactants on surface physicochemical properties, uptake and distribution of asulam and diflufenican

Abstract: the highest concentration of surfactant EO 4: in A. fatua, however, uptake and translocation were not significantly affected by any of the surfactants.

Cited by 25 publications

References 17 publications

Changes in Application System - Influence on Herbicides Residue in Soil and Sugar Beet Roots

Changes in Application System - Influence on Herbicides Residue in Soil and Sugar Beet Roots

Improving agrochemical performance: possible mechanisms for adjuvancy

Degradation Rate of Chloridazon in Soil as Influenced by Adjuvants

Contact Info

Product

Resources

About