Inhibition of nitrifying bacteria by grass and forb root extracts.

摘要: Root extracts of six climax species grasses and eight or forbs that increase on invade overgrazed land were bioassayed for the presence substances which inhibit nitrifying bacteria. Inhibitors detected in root commonly grasslands. During investigations nitrification rates grassland soils it was noted soil collected from plant communities primarily composed invader weed showed depressed nitrifica