| 摘要 |
A process for regulating plant growth, wherein the plants, the seed or the soil are treated with a polycyclic nitrogen-containing compound of the formula <IMAGE> <IMAGE> R2 is -N=N- or -NH-NH, and R3 is <IMAGE> or phenyl which is substituted by halogen, fluoroalkyl of 1 to 2 carbon atoms, NO2 or C1-C3-alkyl, the equivalent of less than 100 g of active ingredient being employed per hectare. |
