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Herbicidal Performances of CDEC and EPTC Incorporated to Various Depths in Furrow-Irrigated Soils

Published online by Cambridge University Press:  12 June 2017

Robert M. Menges  and
J. L. Hubbard
Robert M. Menges
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Weslaco, Texas
J. L. Hubbard
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture, Weslaco, Texas
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Abstract

Glasshouse and field experiments were conducted on fine sandy loam, sandy clay loam, and clay to study under high temperatures 2-chloroallyl diethyldithiocarbamate (CDEC) and ethyl N,N-dipropylthiolcarbamate (EPTC) incorporated with the surface ½, 1, 2, and 3 in of soil and unincorporated. Herbicides, sprayed on the soil surface, were incorporated either manually in the glasshouse or with a powered, rotary tiller in the field. The principal weed species were Palmer amaranth (Amaranthus palmeri S. Wats.), redroot pigweed (Amaranthus retroflexus L.), junglerice (Echinochloa colonum (L.) Link), and barnyardgrass (Echinochloa crusgalli (L.) Beauv.). Performances of herbicides were determined by counting the plants 2 weeks after treatment.

The herbicidal performance of CDEC was greater when the applications were incorporated with the surface ½ or 1 in whereas the performance of EPTC increased with increasing depths of incorporation up to 3 in. Soil temperature, soil moisture losses, and the distribution of herbicide in soil apparently contributed to differential herbicide performance.

Type
Research Article
Information
Weeds , Volume 14 , Issue 3 , July 1966 , pp. 215 - 219
Copyright
Copyright © 1966 Weed Science Society of America 

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References

Literature Cited

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