| Research Title |
Effects of Sulfate Fertilizer on Rice Yield cv. Sakol Nakhon and Global Warming Potential |
| Date of Distribution |
21 January 2012 |
| Conference |
| Title of the Conference |
The 3rd ICERD-International Conference on Environmental and Rural Development |
| Organiser |
International Society of Environmental and Rural Development |
| Conference Place |
Faculty of Agriculture, Khon Kaen University |
| Province/State |
Khon Kaen, Thailand |
| Conference Date |
21 January 2012 |
| To |
22 January 2012 |
| Proceeding Paper |
| Volume |
3 |
| Issue |
1 |
| Page |
101 |
| Editors/edition/publisher |
Jamnong Tragoolram, Patcharee Saenjan and Duangsamorn Tulaphitak |
| Abstract |
Ammonium phosphate sulfate fertilizer is widely used by Thai rice farmer. Sulfate inhibits methanogenesis in flooded paddy soil. This study aimed to investigate the effect of different levels of sulfate (SO42-) on methane emission and rice yields. The experiment was conducted in farmer’s rice field of Khon Kaen, Northeast Thailand during the year 2011. Fertilizer (16-20-0, 42% SO42-), ammonium phosphate sulfate was applied at the rate of 100, 200, and 300 kg SO42- ha-1. All plots with SO42- were adjusted to have the same amount of N, P2O5 and K2O. Control plot had neither SO42- nor fertilizers. The experiment had 4 treatments with 3 replications was laid out in completely randomized design (CRD). Methane emissions were measured one week interval during the growing season by using closed chamber method and calculated as seasonal methane emissions (SME). The results showed that rice yields significantly increased with addition of SO42- (7.71 to 8.41 t ha-1) compared to control (1.92 t ha-1) (p≤0.05). SME significantly decreased with increasing rates of SO42-, indicating that application of SO4-2 fertilizers can reduce the methane emissions and global warming potential (GWP). However the rates of SO42 (100-300 kg SO42- ha-1) still gave the high rice yields. Rice farmers who are using sulfate fertilizers do not know that they produce less methane than others. |
| Author |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Publication
Journal Publication
ไทย