Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide 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.
新型化合物,如 5,7-二甲基-N-(2,6-二
氯苯基)-
1,2,4-三唑并[1,5-a]
嘧啶-2-磺酰胺及其组合物,以及在控制杂草和抑制土壤中
铵态氮硝化方面的用途。其他新型化合物及其成分以及在抑制甜菜抽薹中的用途。