Suppression of nitrification in soil by a tropical grass




In the nitrification process, ammonium-N is converted into nitrite-N and nitrite-N is converted into nitrate-N. If nitrification can be controlled, it is possible not only to increase the nitrogen absorption efficiency by plants but also to decrease nitrous oxide emission from soil. 

It was found that a tropical grass, Brachiaria humidicola, suppressed multiplication of ammonium- oxidizing bacteria and suppressed the process in which ammonium-N was converted into nitrite-N. 

By this function, nitrification in soil was suppressed and nitrous oxide emission from soil was remarkably decreased. 


Japan International Research Center for Agricultural Sciences Biological Resources Division


Technical A

Term of research

FY1998 (FY1995-1999)

Responsible researcher

ISHIKAWA Takayuki ( Biological Resources Division )

Japanese PDF

1998_06_A3_ja.pdf798.18 KB

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