Nitrous oxide emissions from fertilized upland fields in Thailand |
| |
| Authors: | T Watanabe P Chairoj H Tsuruta W Masarngsan C Wongwiwatchai S Wonprasaid W Cholitkul K Minami |
| |
| Affiliation: | (1) Japan International Research Center for Agricultural Sciences, Owashi 1-2, Tsukuba, 305, Japan;(2) Department of Agriculture, Chatuchak, Bangkok, 10900, Thailand;(3) National Institute of Agro-Environmental Sciences, Kannondai 3-1-1, Tsukuba, 305, Japan;(4) Nakhon Sawan Field Crop Research Center, Amphoe Tak-Fa, Nakhon Sawan, 60190, Thailand;(5) Khon Kaen Field Crop Research Center, Amphoe Muang, Khon Kaen, 40000, Thailand;(6) Chiang Mai Field Crop Research Center, Sansai, Chiang Mai, 50290, Thailand |
| |
| Abstract: | Nitrous oxide (N2O) emission from fertilized maize fields was measured using a closed chamber at four experimental sites in Thailand. The average measured N2O flux from unfertilized plots through crop season was 4.16 ± 1.52, 5.05 ± 1.65, 5.25 ± 1.68 and 6.74 ± 2.95  g N2O-N m-2 h-1, at Nakhon Sawan, Phra Phutthabat, Khon Kaen and Chiang Mai, respectively. Increased N2O emissions by the application of nitrogen fertilizer were 0.22–0.44, 0.19–0.38%, 0.12–0.24 and 0.08–0.15% of the applied N, respectively. Compared to other data, N2O emission rate to applied nitrogen was not significantly different between the data of Thailand and the Temperate Zone. |
| |
| Keywords: | nitrous oxide global warming nitrogen fertilizer nitrification the Tropical Zone |
| 本文献已被 SpringerLink 等数据库收录！ |
|
