Phytotoxicity of Paraquat on Directly Planted Sweetpotato

概要

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The injurious effects of paraquat on directly planted sweetpotato were studied in 1970.As paraquat is non-selective and contactive herbicide, most leaves applied with paraquat were injured and blighted, but directly planted sweetpotato began to recover in a few days.Sweetpotato planted were not injured at the rate of 2.4g/a of paraquat, but were injured heavily at the rate of 4.8g to 7.2g/a.Varietal differences of the injurious effect of paraquat were not recognized, and also little differences were recognized with different soil where sweetpotatoes were planted.Directly planted sweetpotato plants have greater recovering ability than transplanted plants.
日本雑草学会の論文