| methane emission from fields with differences in nitrogen fertilizers and rice varieties in taiwan paddy soils. | flooded rice fields are one of the major biogenic methane sources. in this study, methane emission rates were measured after transplanting in paddy fields with application of two kinds of nitrogen fertilizers (ammonium sulfate, nh4+-n and potassium nitrate, no3(-)-n) and with two kinds of rice varieties (japonica and indica). the experiment was conducted in fields located at tainan district agricultural improvement station in chia-yi county (23 degrees 25'08"n, 120 degrees 16'26"e) of southern t ... | 2003 | 12653295 |