| 摘要 |
PURPOSE: An antibacterial composition containing a grass liquid obtained by condensing smoke and steam generated from carbonizing a black oak as a main ingredient is provided to protect grass from Rhizoctonia solani, R. cerealis, and Pythium spp. CONSTITUTION: The antibacterial composition is prepared by condensing smoke and steam generated from carbonizing the oak tree at 500-700deg.C and diluting the condensed liquid with water or other solvents. The composition can be used as natural agricultural chemicals. The natural agricultural chemical should be sprayed on the grass once a week right after drops of dew are gone in the beginning of grass growth to prevent the grass bacillus effectively. |
