Hilgardia
Hilgardia
Hilgardia
University of California
Hilgardia

Herbicide Persistence and movement studies with molinate in rice irrigation management

Authors

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

Publication Information

Hilgardia 28(5):10-12. DOI:10.3733/ca.v028n05p10. May 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.

Tanji K, Biggar J, Mehran M, Cheung M, Henderson D. 1974. Herbicide Persistence and movement studies with molinate in rice irrigation management. Hilgardia 28(5):10-12. DOI:10.3733/ca.v028n05p10
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