The organic solvent extract of lichen had no inhibition on bacillus subtilis and their water extract had no antibacterial effect.

Using the process:water leaching, zinc oxide, causticize, carbonate, solvent extract, stripping to recycle molybdenum and to regenerate alkali.

Allelopathic effects of the different solvent extract from west celery root is higher than the different solvent extract from west celery rhizosphere.