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| Content Provider | Springer Nature Link |
|---|---|
| Author | Adhya, T.K. Bharati, K. Mohanty, S.R. Ramakrishnan, B. Rao, V.R. Sethunathan, N. Wassmann, R. |
| Copyright Year | 2000 |
| Abstract | Methane (CH4) emission from rice fields at Cuttack (State of Orissa, eastern India) has been recorded using an automatic measurement system (closed chamber method) from 1995–1998. Experiments were laid out to test the impact of water regime, organic amendment, inorganic amendment and rice cultivars. Organic amendments in conjunction with chemical N (urea) effected higher CH4 flux over that of chemical N alone. Application of Sesbania, Azolla and compost resulted in 132, 65 and 68 kg CH4 ha−1 in the wet season of 1996 when pure urea application resulted in 42 kg CH4 ha−1. Intermittent irrigation reduced emissions by 15% as compared to continuous flooding in the dry season of 1996. In the wet season of 1995, four cultivars were tested under rainfed conditions resulting in a range of emissions from 20 to 44 kg CH4 ha−1. Application of nitrification inhibitor dicyandiamide (DCD) inhibited while Nimin stimulated CH4 flux from flooded rice compared to that of urea N alone. Wide variation in CH4 production and oxidation potentials was observed in rice soils tested. Methane oxidation decreased with soil depth, fertilizer-N and nitrification inhibitors while organic amendment stimulated it. The results indicate that CH4 emission from the representative rainfed ecosystem at the experimental site averaged to 32 kg CH4 ha−1 yr−1. |
| Starting Page | 95 |
| Ending Page | 105 |
| Page Count | 11 |
| File Format | |
| ISSN | 13851314 |
| Journal | Nutrient Cycling in Agroecosystems |
| Volume Number | 58 |
| Issue Number | 1-3 |
| e-ISSN | 15730867 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2000-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Soil Science & Conservation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Agronomy and Crop Science Soil Science |
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