Persistence of Rice and Cotton Herbicides in Soils
Other Title
若干水稻與棉花除草劑在土壤中之持續性
Journal
農業研究
Journal Volume
22
Journal Issue
2
Start Page
111
End Page
118
Date Issued
1973-06-04
Date
1973-06-04
Author(s)
W.L. Chang
張萬來
Abstract
The persistence of four rice herbicides and two cotton herbicides in soils was evaluated by screenhouse bioassays in November, 1971 at the Chiayi Agricultural Experiment Station. The upper 10 cm surface soil was collected approximately five months after the application of herbicides. Bioassay indicators for rice soils included harnyand grass, rice, wheat, corn, sorghum, flax, rape, radish, and sweet potato while only rice was used for cotton soil. Preliminary results indicate that rice herbicides Machete, MO-401, TOK, and Saturn*M applied in the second crop of 1971 and cotton herbicides Herhan-M and Butisan applied in the Fall planting of 1971 do not persist in amounts toxic to the growth of bioassay indicators planted approximately five months later.
嘉義農業試驗分所於民國60年11月在網室舉行四種水稻除草劑與兩種棉花除草劑在土壤中持續性之植物檢定試驗。土壤樣本為使用除草劑後約五個月之土面10公分之表土，用於測定水田土壤之檢定作物包括稗草、水稻、小麥、玉米、高梁、亞蔴、油菜、蘿蔔、甘薯，而棉花園土壤之測定則只用水稻一種。初步結果顯示民國60年第二期作使用之水稻除草劑馬上除、益歐401、多谷與掃丹-M，及民國60年秋作使用棉花除草劑禾爾邦砷與找地草等，在土壤中之殘留量均不足以影響除草劑使用後約五個月種植檢定作物之正常發育。
Publisher
農業試驗所
Type
journal article
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