Pesticide Spray Droplet Adhesion Modeling / WA. Forster, MO. Kimberley, JA. Zabkiewicz
- Conference Author:
- Pesticide Formulations and Application Systems: A New Century for Agricultural Formulations, Twenty First Volume (21st : 2000 : Orlando, Florida)
- Physical Description:
- 1 online resource (12 pages) : illustrations, figures, tables
- Additional Creators:
- Zabkiewicz, JA.
American Society for Testing and Materials
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- Spray droplet adhesion is a consequence of dynamic interactions of formulants within the spray droplet during flight and on impact, physical properties of the droplet (size and velocity), leaf surface morphology and leaf orientation. The objective of this study was to improve on a universal adhesion model incorporating the above factors. The previous spray droplet adhesion model has been extended to include droplet size (ranging from 180 ?m to 1000 ?m) and droplet velocity (0.63 ms-1 to 2.82 ms-1 at impact), and made more robust by increasing the number of formulations (dynamic surface tension of droplets at impact range from 20.7 to 72 mN m-1), the types of leaf surfaces (20% acetone contact angles on the leaf surfaces range from 61¿̐ư to 124¿̐ư), and the number of droplet impact angles (leaf angles from horizontal to 67.5¿̐ư). In this study, contact angles using 20% acetone:water accounted for 95% of the differences between the leaf surfaces studied compared to 76% previously observed with water only. The present universal model explains 74% of the deviance. The current model's capabilities and limitations are discussed in relation to the physical parameters measured and observed.
- Dates of Publication and/or Sequential Designation:
- Volume 2001, Issue 1414 (January 2001)
- 9780803154599 (e-ISBN)
- Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 13.
- Other Forms:
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
- Reproduction Note:
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2001. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
- Technical Details:
- Mode of access: World Wide Web.
- Source of Acquisition:
- ASTM International PDF Purchase price USD25.
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