Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sul fonamide and their compositions and use in the control of weeds and in the suppression of nitrification of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets. Other novel compounds and their compositions and use as plant gametocides.
小说化合物,例如5,7-二
甲基-N-(
2,6-二氯苯基)-
1,2,4-三唑[1,5-a]
嘧啶-2-磺
酰胺及其组合物,用于控制杂草和抑制土壤中
铵态
氮的硝化。其他新型化合物及其组合物,用于抑制甜菜中的开花。其他新型化合物及其组合物,用作植物配子毒剂。