• Title/Summary/Keyword: cornpatibillity

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Controlled Release of Oxyfluorfen from the Variously Complexed Formulations III. Phytotoxicity and Efficacy of Selected Formulations as Affected by Application Rates (수종(數種)의 結合齊l型(結合齊l型)으로부터 Oxyfluorfen의 방출제어연구(放出制御硏究) III. 사용량(使用量)에 따른 선발제형(選拔劑型) Oxyfluorfen의 약해(藥害)·약효평가(藥效評價))

  • Guh, J.O.;Lim, W.H.;Chon, S.U.;Kwon, S.L.
    • Korean Journal of Weed Science
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    • v.11 no.1
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    • pp.11-18
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    • 1991

  • Seven formulations of oxyfluorfen selected from the previous studies(4. 5) were tesed to evaluate crop injury and herbicidal efficacy on two rice cultivars and several annual and perennial weeds in a greenhouse. Each formulation at two different rates was applied to rice transplanted with 8-, 22- and 32-day old seedlings and to direct-seeded rice. Among the formulations, Elvan, Bentonite B. Chitosan and Coal Slag gave lower injury than a control formulation, Sand-coated oxyluorfen, and they did not have a problem with excessive release if active ingredient at once. Especially, the formulations of Elvan, Chitosan and Bentonite B controlled annual weeds (Echinochloa crus-galli, Monochoria vaginalis, Cyperus difformis., and Scirpus juncoides) and perennial weeds (Sagittaria pygmaea, and Cyperus serotinus). The surface structure of the formulations indicate the different possibilities of releasing of oxyfluorfen by different cracking and hole sizes, namely retention capacity.

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