Effect of 1, 8-NA and CGA 123'407 on reducing herbicide injury of rice plants
1986
Pyon, J.Y. (Chungnam National Univ., Taejon (Korea R.))
Since herbicide damage has been occurred in subirrigated rice seedbed in Korea, the use of crop safener was required to reduce crop injury. Field studies were conducted to evaluate safening effect of 1, 8-naphthalic anhydride (NA) and CGA 123'407 (4, 6-dichloro-2-phenyl-pyrimidine) against four kinds of paddy herbicides applied to subirrigated vinyl-covered rice seedbed. NA as a seed dressing at 0.5 % (W/W) was effective in reducing rice injury from butachlor, pretilachlor, chlormethoxynil and benthiocard, and increased number of seedling established, plant height, and dry weight of rice seedlings, while growth inhibition and stand loss were observed at 1% NA
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