Synthesis of trichloromethyl-1, 3, 5-triazines and their nitrification-inhibitory activity
1993
Murakami, M. (Tamagawa Univ., Machida, Tokyo (Japan). Faculty of Agriculture) | Tsuji, A. | Miyamoto, Y. | Yamazaki, C. | Ogawa, H. | Takeshima, S. | Wakabayashi, K.
A group of trichloromethyl-1,3,5-triazines were synthesized and their nitrification-inhibitory activity in upland soil was investigated by measuring pI50 values of the triazines. All the trichloromethyl-1,3,5-triazines assayed proved to be active nitrification inhibitors in the soil. Measurement of accumulated nitrification intermediates, NH2OH and NO2-N, revealed a possibility that nitrite formation step was blocked by the triazine inhibitors. In addition, the structure-activity correlation between pI50 values and hydrophobic parameter, log P, confirmed that a combination of amino group and trichloromethyl group as substituents of 1,3,5-triazines seemed to be favorable to the nitrification-inhibitory activity of the triazines
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