Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-15T08:25:09.703Z Has data issue: false hasContentIssue false

Efficacy of Selected Herbicides as Influenced by Soil Properties

Published online by Cambridge University Press:  12 June 2017

Michael R. Blumhorst
Affiliation:
Crop Sci. Dep., N.C. State Univ., Raleigh, NC 27695-7620
Jerome B. Weber
Affiliation:
Crop Sci. Dep., N.C. State Univ., Raleigh, NC 27695-7620
Len R. Swain
Affiliation:
Crop Sci. Dep., N.C. State Univ., Raleigh, NC 27695-7620

Abstract

Field experiments were conducted on six loam and sandy loam soils to study the influence of various soil parameters on atrazine, cyanazine, alachlor, metolachlor, and pendimethalin efficacy. Herbicidal activity was highly correlated to the soil organic content. Humic matter content was equally or better correlated (r = 0.70 to 0.91) with herbicide bioactivity than was organic matter content (r = 0.66 to 0.84). Regression equations were determined which allow herbicide rate recommendations for 80% weed control to be calculated based on soil humic matter or organic matter levels.

Type
Research
Copyright
Copyright © 1990 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. 1983. Reference soil test methods for the southern region of the United States. South. Coop. Ser. Bull. 289. Univ. GA, Athens.Google Scholar
2. Blumhorst, M. R., and Weber, J. B. 1989. Adsorption and mobility of cyanazine and atrazine as influenced by soil properties. Weed Sci. 37: (submitted).Google Scholar
3. Carringer, R. D., Weber, J. B., and Monaco, T. J. 1975. Adsorption-desorption of selected pesticides by organic matter and montmorillonite. J. Agric. Food Chem. 23:568572.Google Scholar
4. Harrison, G. W., Weber, J. B., and Baird, J. V. 1976. Herbicide phytotoxicity as affected by selected properties of North Carolina soils. Weed Sci. 24:120126.Google Scholar
5. Kozak, J., Weber, J. B., and Sheets, T. J. 1983. Adsorption of prometryn and metolachlor by selected soil organic fractions. Soil Sci. 136:94101.Google Scholar
6. LeBaron, H. M. 1970. Ways and means to influence the activity and persistence of triazine herbicides in soils. Res. Rev. 32:311353.Google Scholar
7. Lowder, S. W., and Weber, J. B. 1982. Atrazine efficacy and longevity as affected by tillage, liming, and fertilizer type. Weed Sci. 30:273280.Google Scholar
8. Mehlich, A. 1984. Mehlich 3 soil test extractant: a modification of Mehlich 2 extractant. Commun. Soil Sci. Plant Anal. 15:14091416.CrossRefGoogle Scholar
9. Mehlich, A. 1984. Photometric determination of humic matter in soils, a proposed method. Commun. Soil Sci. Plant Anal. 15:14171422.CrossRefGoogle Scholar
10. Rahman, A., and Matthews, L. J. 1979. Effect of soil organic matter on the phytotoxicity of thirteen s-triazine herbicides. Weed Sci. 27:158161.Google Scholar
11. Parochetti, J. V. 1973. Soil organic matter effect on activity of acetamides, CDAA, and atrazine. Weed Sci. 21:157160.CrossRefGoogle Scholar
12. Peter, C. J. and Weber, J. B. 1985. Adsorption and efficacy of trifluralin and butralin as influenced by soil properties. Weed Sci. 33:861867.Google Scholar
13. Peter, C. J., and Weber, J. B. 1985. Adsorption, mobility, and efficacy of metribuzin as influenced by soil properties. Weed Sci. 33:868873.Google Scholar
14. Peter, C. J., and Weber, J. B. 1985. Adsorption, mobility, and efficacy of alachlor and metolachlor as influenced by soil properties. Weed Sci. 33:874881.Google Scholar
15. Sheets, T. J., Crafts, A. S., and Drever, H. R. 1962. Influence of soil properties on the phytotoxicities of the s-triazine herbicides. J. Agric. Food Chem. 10:458462.Google Scholar
16. Weber, J. B., Tucker, M. R., and Isaac, R. A. 1987. Making herbicide rate recommendations based on soil tests. Weed Technol. 1:4145.Google Scholar
17. Weed, S. B., and Weber, J. B. 1974. Pesticide-organic matter interactions. p. 3966 in Guenzi, W. D., ed. Pesticides in Soil and Water. Soil Sci. Soc. Am., Inc., Madison, WI.Google Scholar