Development of the novel formulation “MAMETSUBU” for the paddy rice

Fujita, Shigeki; Hiraoka, Manabu; Ikeuchi, Toshihiro; Kobayashi, Masami

doi:10.1584/jpestics.j15-02

Cited by 4 publications

(4 citation statements)

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“…44) When the mametsubu formulation containing pyrimisulfan was applied, a uniform concentration of the active ingredient was exhibited 3 days after application. 45,46)…”

Section: Mametsubu Formulationmentioning

confidence: 99%

Basic Technology and Recent Trends in Agricultural Formulation and Application Technology

Ohkouchi

Tsuji²

2022

J. Pestic. Sci.

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Recent requirements of the pesticide industry have become much severer, and pesticides (formulated products) are required to satisfy higher safety to both human beings and the environment, higher biological efficacy, lower price, and labor-saving. This review explains the outline of basic pesticide formulation technology, followed by recent advances in developing new formulations and application technologies. Labor-saving formulations and application technologies, environmental load reduction technologies, and user-friendly formulations and application technologies are elucidated.

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“…44) When the mametsubu formulation containing pyrimisulfan was applied, a uniform concentration of the active ingredient was exhibited 3 days after application. 45,46)…”

Section: Mametsubu Formulationmentioning

confidence: 99%

Basic Technology and Recent Trends in Agricultural Formulation and Application Technology

Ohkouchi

Tsuji²

2022

J. Pestic. Sci.

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“…The self-propulsion of solid grains and liquid droplets at interfaces is one of such phenomena, and nowadays, various systems and their motion modes have been reported as examples of active matter. − In some cases, such systems have been developed for use as models of biological systems, whose physical motions are driven by chemical energy under isothermal conditions. In other cases, they have been studied for the construction of drug delivery systems , or commercially used as labor-saving herbicides that spread over a paddy field just by delivering a pack of their grains to one spot of the field. − …”

Section: Introductionmentioning

confidence: 99%

Flow-Driven Self-Propulsion of Oil Droplet on a Surfactant Solution Surface, as Observed by Time-Resolved Interfacial Tension and Surface Flow Speed Measurements

Nomoto,

Kimura,

Chiari

et al. 2024

Langmuir

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The imbalanced force of the interfacial tension applied to an object has often been taken into account in the analysis of the motion mechanism of self-propelled systems. However, heterogeneous distributions of the interfacial tension also cause Marangoni flows, and these flows also contribute to the self-propulsion through the viscous force. The contribution of such flows has not been observed directly, while the interfacial tension difference has been measured in some systems. In this study, simultaneous measurements of the interfacial tension and surface flow speed of the unidirectional self-propelled motion of a butyl salicylate (BS) droplet in a circular channel on a sodium dodecyl sulfate (SDS) aqueous solution were achieved by the quasi-elastic laser scattering method. The droplet position was also recorded by observing its fluorescence excited by a UV light. The BS droplet speed dependence of the interfacial tension and surface flow speed were measured by varying the initial BS concentration codissolved in the SDS aqueous solution. As a result, a periodic decrease of the interfacial tension and a periodic increase of the speed of both forward and backward flows were observed when the droplet passed the sampling position of the time-resolved measurements. When they were converted to the distribution in space of the droplet position, no droplet speed dependence of the interfacial tension difference between the front and rear of the droplet was observed. On the other hand, the speed of both forward and backward flows increased as the droplet speed increased. By analysis of the above results with a simplified model, it was clarified that the forward flow driven by the interfacial tension gradient at the droplet front is actually important in the mechanism of the unidirectional self-propelled motion of a droplet.

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“…In recent years, there has been an increasing interest in active matters, by constructing and controlling substances or composite systems that exhibit chemically driven self-propulsion. − Such self-propelled systems are expected to have a wide range of applications, such as drug delivery systems, , sensors, and labor-saving pesticides. , In addition, self-propelled systems sometimes play key roles in collective behaviors as natural or artificial micromotors . At the millimeter or smaller size scale where these systems reside, the interfacial tension is often the dominant force.…”

Section: Introductionmentioning

confidence: 99%

“…1−11 Such self-propelled systems are expected to have a wide range of applications, such as drug delivery systems, 12,13 sensors, 14 and labor-saving pesticides. 15,16 In addition, self-propelled systems sometimes play key roles in collective behaviors as natural or artificial micromotors. 17 At the millimeter or smaller size scale where these systems reside, the interfacial tension is often the dominant force.…”

Section: ■ Introductionmentioning

confidence: 99%

Time-Resolved Measurements of Interfacial Tension and Flow Speed of the Inclined Water Surface around a Self-propelled Camphor Boat by the Quasi-elastic Laser Scattering Method

et al. 2023

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An inclined liquid surface, such as a meniscus, plays an important role in advection and transport phenomena at a liquid's surface. However, there is no time-resolved measurement method for the interfacial tension of an inclined liquid−air interface. Here, a noninvasive method for simultaneous measurements of the interfacial tension and surface flow speed for an inclined water surface is described. This is an upgrade of the quasielastic laser scattering method with a closed-loop control system that introduces the dynamically tracked scattered and referential light into the detector. For the evaluation of the tilt compensation by dynamic tracking, the relationship between the apparent interfacial tension and surface inclination was examined for a water meniscus at 0−5°inclinations. It was also demonstrated that simultaneous measurements of the interfacial tension and surface flow speed around a self-propelled camphor boat on a pure water surface inclined by >3°at the back end of the boat are difficult to conduct accurately without dynamic tracking. Both the interfacial tension difference and the backward flow speed increased as the boat speed increased to 0.1 m/s; that had not been evaluated to date because of the high velocity of the boat and the surface inclination of the water around it. The direct experimental evaluation of the interfacial tension and the flow speed supported the model that the driving force of the camphor boat is the interfacial tension difference and the resistance force proportional to the boat velocity reduces its acceleration.

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Development of the novel formulation “MAMETSUBU” for the paddy rice

Cited by 4 publications

References 0 publications

Basic Technology and Recent Trends in Agricultural Formulation and Application Technology

Basic Technology and Recent Trends in Agricultural Formulation and Application Technology

Flow-Driven Self-Propulsion of Oil Droplet on a Surfactant Solution Surface, as Observed by Time-Resolved Interfacial Tension and Surface Flow Speed Measurements

Time-Resolved Measurements of Interfacial Tension and Flow Speed of the Inclined Water Surface around a Self-propelled Camphor Boat by the Quasi-elastic Laser Scattering Method

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