Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-28T13:16:23.095Z Has data issue: false hasContentIssue false
  • English
  • Français

Response of Monocot and Dicot Weed Species to Fresnel Lens Concentrated Solar Radiation

Published online by Cambridge University Press:  12 June 2017

David W. Johnson ,
James M. Krall ,
Ronald H. Delaney  and
Larry O. Pochop
David W. Johnson
Affiliation:
Plant, Soil and Insect Sci. Dep., Univ. Wyoming, Laramie, WY 82071
James M. Krall
Affiliation:
Plant, Soil and Insect Sci. Dep., Univ. Wyoming, Laramie, WY 82071
Ronald H. Delaney
Affiliation:
Plant, Soil and Insect Sci. Dep., Univ. Wyoming, Laramie, WY 82071
Larry O. Pochop
Affiliation:
Dep. Agric. Eng. Univ. Wyoming, Laramie, WY 82071
Get access Rights & Permissions [Opens in a new window]

Abstract

Fresnel lenses are used to concentrate solar radiation to a line or point. A linear Fresnel lens (0.91 by 1.52 m, 0.74-m focal length, 0.01- by 1.52-m line focus) was investigated as a method for weed control. Field experiments were conducted to assess the effect of Fresnel lens concentrated solar radiation at various exposure times, stages of plant growth, and soil surface moisture conditions. On a dry soil surface exposure times of 1 to 10 s at 290 C resulted in control of redroot pigweed from 100% for a 1-s exposure at the cotyledon stage to 89% for a 10-s exposure at the 10-leaf stage. Redroot pigweed and kochia control was similar at exposures of 3 to 10 s, but less for kochia at 1 and 2 s. Green foxtail control was less than that of kochia and redroot pigweed. Control was reduced on a moist compared to a dry soil surface. Concentrated solar radiation holds the greatest potential for control of small dicot weeds on a dry soil surface.

Keywords

Redroot pigweed, Amaranthus retroflexus L. ♯3 AMAREkochia, Kochia scoparia (L.)Schrad. ♯ KCHSCgreen foxtail, Setaria viridis (L.)Beauv. ♯ SETVITemperaturetemperature responsecurved linear lensAMAREKCHSCSETVI
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 37 , Issue 6 , November 1989 , pp. 797 - 801
Copyright
Copyright © 1989 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Anonymous. 1986. Status Report Solar Energy. Friedr. Vieweg and Sohn, Braunschweig/Wiesbaden. Pages 44–45.Google Scholar
2. Chen, , Hwei-Hwang, Zheng-Yan Shen, and Li, P. H. 1982. Adaptability of crop plants to high temperature stress. Crop Sci. 22:719–725.Google Scholar
3. Christiansen, M. N. 1978. The physiology of plant tolerance to temperature extremes. Pages 173–191 in Jung, G. A., ed. Crop Tolerance to Suboptimal Land Conditions. Am. Soc. Agron., Madison.Google Scholar
4. Colwick, R. F. 1960. Flame cultivation. Mississippi Agric. Exp. Stn. South. Coop. Ser. Bull. 71:36–40.Google Scholar
5. Egley, G. H. 1983. Weed seed and seedling reductions by solarization with transparent polyethylene sheets. Weed Sci. 31:404–409.Google Scholar
6. Harvey, R. B. 1923. Relation of the color of bark to the temperature of the cambium in winter. Ecology 4:391–394.Google Scholar
7. Hastings, L. J. and Allums, S. L. 1978. Performance characteristics of a 1.8 by 3.7 meter Fresnel lens solar concentrator. Pages 213–223 in Wu, S. T., Christensen, D. L., and Head, R. R., eds. Application of Solar Energy. Univ. Alabama, Huntsville.Google Scholar
8. Horowitz, M., Regev, Y., and Herslinger, G. 1983. Solarization for weed control. Weed Sci. 31:170–179.CrossRefGoogle Scholar
9. Kriedeman, P. E., Neales, T. F., and Ashton, D. H. 1964. Photosynthesis in relation to leaf orientation and light interception. Aust. J. Biol. Sci. 17:591–600.Google Scholar
10. Nelson, D. T., Evans, D. L., and Bansel, R. K. 1975. Linear Fresnel lens concentrators. Pages 483–484 in 1975 International Solar Energy Congress and Exposition. Int. Solar Energy Soc., Los Angeles.Google Scholar
11. Nixon, G. 1977. Cast acrylic Fresnel lens solar concentrator. Pages 5/33–43 in Proc. of U.S. Energy Res. and Dev. Admin. Conf. on Concentrating Solar Collectors, Atlanta.Google Scholar
12. Northrup, L. L. Jr. and O'Neill, M. J. 1975. A practical concentrating solar energy collector. Pages 487–488 in 1975 International Solar Energy Congress and Exposition. Int. Solar Energy Soc., Los Angeles.Google Scholar
13. O'Neill, M. J., Waller, R. A., and McDanal, A. J. 1982. The measured performance of a family of linear Fresnel lens solar concentrators (E systems, Inc., Dallas, TX). Pages 275–280 in Franta, G. E., Haggard, K., Glenn, B. H., Kolar, W. A., and Howell, J. R., eds. Progress in Solar Energy: The Renewable Challenge. Am. Solar Energy Soc., Boulder.Google Scholar
14. Rubin, B. and Benjamin, A. 1983. Solar heating of the soil: Effect on weed control and on soil-incorporated herbicides. Weed Sci. 31:819–825.Google Scholar
15. Wolpert, A. 1962. Heat transfer analysis of factors affecting plant leaf temperature. Significance of leaf hair. Plant Physiol. 37:113–120.Google Scholar