Review of physicochemical processes involved in agrochemical spray retention
This review provides a broad view of the processes and parameters involved in applying agrochemicals to the leaves of field crops. Treatment efficiency is assessed using macroscopic and microscopic approaches to investigate spray retention. With the macroscopic approach, aspects related to spray coa...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Presses Agronomiques de Gembloux
2013-01-01
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| Series: | Biotechnologie, Agronomie, Société et Environnement |
| Subjects: | |
| Online Access: | http://hdl.handle.net/11006/96 |
| _version_ | 1819095611543126016 |
|---|---|
| author | Massinon, M. Lebeau, F. |
| author_facet | Massinon, M. Lebeau, F. |
| author_sort | Massinon, M. |
| collection | DOAJ |
| description | This review provides a broad view of the processes and parameters involved in applying agrochemicals to the leaves of field crops. Treatment efficiency is assessed using macroscopic and microscopic approaches to investigate spray retention. With the macroscopic approach, aspects related to spray coarseness, carrier volume, leaf wettability, plant architecture, crop density and additives are addressed. Comparative studies have highlighted the wide variability in spray retention as a function of these parameters. They have failed, however, to describe the underlying physical relationships clearly enough to generalize the results. These relationships are better investigated using a microscopic approach, where drop impact behavior is established in relation to target surface and fluid properties. The wetting regime (either Wenzel or Cassie-Baxter) depends on the leaf surface microscopic roughness ratio (r) and chemical nature, fluid dynamic surface tension and drop impact energy. Adhesion, rebound and disintegration have been observed successively with increasing drop impact energy. Transitions between impact outcomes are influenced by fluid rheology and the dynamic surface tension of the fluid. The effect of surface orientation remains poorly explored, but it seems to have a limited influence on retention. Recent fundamental studies on superhydrophobicity and wetting should help practitioners in their search for an ever more rational application of agrochemicals. They could also drive the development of new systematic retention testing methods. |
| first_indexed | 2024-12-21T23:46:03Z |
| format | Article |
| id | doaj.art-80a0812e81e444e9b98b8af18576ecb0 |
| institution | Directory Open Access Journal |
| issn | 1370-6233 1780-4507 |
| language | English |
| last_indexed | 2024-12-21T23:46:03Z |
| publishDate | 2013-01-01 |
| publisher | Presses Agronomiques de Gembloux |
| record_format | Article |
| series | Biotechnologie, Agronomie, Société et Environnement |
| spelling | doaj.art-80a0812e81e444e9b98b8af18576ecb02022-12-21T18:46:07ZengPresses Agronomiques de GemblouxBiotechnologie, Agronomie, Société et Environnement1370-62331780-45072013-01-01173494504Review of physicochemical processes involved in agrochemical spray retentionMassinon, M.Lebeau, F.This review provides a broad view of the processes and parameters involved in applying agrochemicals to the leaves of field crops. Treatment efficiency is assessed using macroscopic and microscopic approaches to investigate spray retention. With the macroscopic approach, aspects related to spray coarseness, carrier volume, leaf wettability, plant architecture, crop density and additives are addressed. Comparative studies have highlighted the wide variability in spray retention as a function of these parameters. They have failed, however, to describe the underlying physical relationships clearly enough to generalize the results. These relationships are better investigated using a microscopic approach, where drop impact behavior is established in relation to target surface and fluid properties. The wetting regime (either Wenzel or Cassie-Baxter) depends on the leaf surface microscopic roughness ratio (r) and chemical nature, fluid dynamic surface tension and drop impact energy. Adhesion, rebound and disintegration have been observed successively with increasing drop impact energy. Transitions between impact outcomes are influenced by fluid rheology and the dynamic surface tension of the fluid. The effect of surface orientation remains poorly explored, but it seems to have a limited influence on retention. Recent fundamental studies on superhydrophobicity and wetting should help practitioners in their search for an ever more rational application of agrochemicals. They could also drive the development of new systematic retention testing methods.http://hdl.handle.net/11006/96Pesticidefoliagesurface tensionsprayingsurface active agent |
| spellingShingle | Massinon, M. Lebeau, F. Review of physicochemical processes involved in agrochemical spray retention Biotechnologie, Agronomie, Société et Environnement Pesticide foliage surface tension spraying surface active agent |
| title | Review of physicochemical processes involved in agrochemical spray retention |
| title_full | Review of physicochemical processes involved in agrochemical spray retention |
| title_fullStr | Review of physicochemical processes involved in agrochemical spray retention |
| title_full_unstemmed | Review of physicochemical processes involved in agrochemical spray retention |
| title_short | Review of physicochemical processes involved in agrochemical spray retention |
| title_sort | review of physicochemical processes involved in agrochemical spray retention |
| topic | Pesticide foliage surface tension spraying surface active agent |
| url | http://hdl.handle.net/11006/96 |
| work_keys_str_mv | AT massinonm reviewofphysicochemicalprocessesinvolvedinagrochemicalsprayretention AT lebeauf reviewofphysicochemicalprocessesinvolvedinagrochemicalsprayretention |