Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-23T01:19:19.775Z Has data issue: false hasContentIssue false
  • English
  • Français

Persistence and Movement of Picloram in Two Kansas Soils

Published online by Cambridge University Press:  12 June 2017

W. M. Phillips  and
K. C. Feltner
W. M. Phillips
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Hays, Kansas 67601
K. C. Feltner
Affiliation:
Dep. of Agron., Kansas State Univ., Manhattan, Kansas 66502
Get access Rights & Permissions [Opens in a new window]

Abstract

Persistence and movement of 4-amino-3,5,6-trichloropicolinic acid (picloram) were studied in silty clay loam soils located at Hays and Newton, Kansas. At Hays, picloram was applied to a Harney silty clay loam at rates of 2.24 and 3.36 kg/ha in 1963, 1964, 1965, 1966, and 1968 and at Newton to a Goessel (tentative) silty clay loam at rates of 1.12, 2.24, and 3.36 kg/ha in 1966. Fifteen, 20, or 30-cm increments of soil were taken from as deep at 2.4 m below the soil surface and bio-assayed with soybeans (Glycine max (L.) Merr. ‘Clark 63′) in 1968 and 1969. In both soils the highest concentration of phytotoxic residue remained near the soil surface, but differences between the two sites were evident. In the Goessel soil phytotoxic residues were detected only near the surface. In the Harney soil movement was uneven, but residues were detected as deep as 2.4 m below the surface. Soil cracks probably contributed to penetration of small amounts of the herbicide to as much as 2.4 m below the surface. Total picloram remaining in both soils diminished with time.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 1 , January 1972 , pp. 110 - 116
Copyright
Copyright © 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. Cheng, H. H. 1969. Extraction and colorimetric determination of picloram in soil. J. Agr. Food Chem. 17:1174–1177.CrossRefGoogle Scholar
2. Goring, C. A. I., Youngson, C. R., and Hamaker, J. W. 1965. Tordon herbicide disappearance from soils. Down to Earth 20(4): 3–5.Google Scholar
3. Grover, R. 1967. Studies on the degradation of 4-amino-3,5,6-trichloropicolinic acid in soil. Weed Res. 7:61–67.CrossRefGoogle Scholar
4. Hamaker, J. W., Youngson, C. R., and Goring, C. A. I. 1967. Prediction of the persistence and activity of Tordon herbicide in soils under field conditions. Down to Earth 23(2):30–36.Google Scholar
5. Herr, Donald E., Stroube, E. W., and Ray, Dale A. 1966. The movement and persistence of picloram in soil. Weeds 14:248–250.CrossRefGoogle Scholar
6. Keys, C. H. and Friesen, H. A. 1968. Persistence of picloram activity in soil. Weed Sci. 16:341–343.CrossRefGoogle Scholar
7. Leasure, J. K. 1964. Biossay methods for 4-amino-3,5,6-trichloropicolinic acid. Weeds 12:232–233.CrossRefGoogle Scholar
8. Merkle, M. G., Bovey, R. W., and Davis, F. S. 1967. Factors affecting the persistence of picloram in soil. Agron. J. 59:413–415.CrossRefGoogle Scholar
9. Phillips, W. M. 1968. Persistence and movement of 2,3,6-TBA in soil. Weed Sci. 16:144–148.CrossRefGoogle Scholar
10. Scifres, C. J., Burnside, O. C., and McCarty, M. K. 1969. Movement and persistence of picloram in pasture soils of Nebraska. Weed Sci. 17:486–488.CrossRefGoogle Scholar