Methane (CH4) gases emissions ...
Published by Goden Mabaya, Kyoto Univesity - PHD Student
Methane (CH4) gases emissions from rice paddy cause the green house effect which is 11 times greater than carbon dioxide due to anaerobic layer of flooded system. Nitrous oxide is also emitted.The management of methane in Japan is through mid summer drainage, intermittent irrigation, no tillage practices and apply ammonium sulphate. The methodology of measuring methane I do not know but from literature, you can use chamber method or Methane emission model (which involves measuring rice growth, air temperature, soil properties, organic matter etc).