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Herbicide Persistence and movement studies with molinate in rice irrigation management

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Authors

K. K. Tanji, Davis
J. W. Biggar, Davis
Mohsen Mehran, Davis
M. W. Cheung, Davis
D. W. Henderson, Davis

Publication Information

California Agriculture 28(5):10-12.

Published May 01, 1974

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Abstract

These studies investigated the persistence of molinate (a selective herbicide registered for use in rice culture to control watergrass, or barnyardgrass) in flood and seepage waters, residues, and extent and speed of chemical movement. Results from these and earlier experiments show that water management and circulation in flooded rice fields are important considerations. Regardless of how uniformly a chemical is applied, downstream movement of water tends to redistribute it. Gusty winds can also modify chemical distribution. The redistribution of chemicals can be minimized by holding flood waters for a few days after application. Soil incorporation gives less residue in flood waters and drains than does water application.

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Author notes

D. T. Bradley, Superintendent of Cultivations, M. Ashkar and M. Iqbal, Staff Research Associates, and J. Martin and J. Corry, Jr., Laboratory Helpers also assisted in this investigation. The project was supported by the California Rice Research Foundation.

Herbicide Persistence and movement studies with molinate in rice irrigation management

K. K. Tanji, J. W. Biggar, Mohsen Mehran, M. W. Cheung, D. W. Henderson
Webmaster Email: wsuckow@ucanr.edu

Herbicide Persistence and movement studies with molinate in rice irrigation management

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

K. K. Tanji, Davis
J. W. Biggar, Davis
Mohsen Mehran, Davis
M. W. Cheung, Davis
D. W. Henderson, Davis

Publication Information

California Agriculture 28(5):10-12.

Published May 01, 1974

PDF  |  Citation  |  Permissions

Abstract

These studies investigated the persistence of molinate (a selective herbicide registered for use in rice culture to control watergrass, or barnyardgrass) in flood and seepage waters, residues, and extent and speed of chemical movement. Results from these and earlier experiments show that water management and circulation in flooded rice fields are important considerations. Regardless of how uniformly a chemical is applied, downstream movement of water tends to redistribute it. Gusty winds can also modify chemical distribution. The redistribution of chemicals can be minimized by holding flood waters for a few days after application. Soil incorporation gives less residue in flood waters and drains than does water application.

Full text

Full text is available in PDF.

Author notes

D. T. Bradley, Superintendent of Cultivations, M. Ashkar and M. Iqbal, Staff Research Associates, and J. Martin and J. Corry, Jr., Laboratory Helpers also assisted in this investigation. The project was supported by the California Rice Research Foundation.


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