Nitrous oxide flux from irrigated rice fields in West Java

Suratno, Wawang; Murdiyarso, Daniel; Suratmo, F.G.; Anas, Iswandi; Saeni, M. Sri; Rambe, A.

doi:10.1016/s0269-7491(98)80028-6

Cited by 33 publications

(6 citation statements)

References 13 publications

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“…Although water management has a large effect on N 2 O emission [e.g., Zheng et al , 2000], this pattern analysis can be expected to contain errors caused by the difficulty of determining the water regime, because details of water management (timing, number, and duration of drainage) were not described in many papers. In only seven papers among those reviewed were the seasonal changes in water depth for the entire cropping period reported [ Yagi et al , 1996; Cai et al , 1997, 1999; Suratno et al , 1998; Zheng et al , 2000; Ghosh et al , 2003; Nishimura et al , 2004]. In addition, details of fertilizer management (timing and application method for both basal and supplemental fertilizer application, N content of organic fertilizer) or the actual cropping period (date of transplanting and harvest) were not described in some papers.…”

Section: Resultsmentioning

confidence: 99%

Direct N₂O emissions from rice paddy fields: Summary of available data

Akiyama

Yagi

Yan

2005

Global Biogeochemical Cycles

214

121

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[1] Rice cultivation is an important anthropogenic source of atmospheric nitrous oxide (N 2 O) and methane. We compiled and analyzed data on N 2 O emissions from rice fields (113 measurements from 17 sites) reported in peer-reviewed journals. Mean N 2 O emission ± standard deviation and mean fertilizer-induced emission factor during the rice-cropping season were, respectively, 341 ± 474 g N ha À1 season À1 and 0.22 ± 0.24% for fertilized fields continuously flooded, 993 ± 1075 g N ha À1 season À1 and 0.37 ± 0.35% for fertilized fields with midseason drainage, and 667 ± 885 g N ha À1 season À1and 0.31 ± 0.31% for all water regimes. The estimated whole-year background emission was 1820 g N ha À1 yr À1 . A large uncertainty remains, especially for background emission because of limited data availability. Although midseason drainage generally reduces CH 4 and increases N 2 O emissions, it may be an effective option for mitigating the net global warming potential of rice fields.

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Section: Resultsmentioning

confidence: 99%

Direct N₂O emissions from rice paddy fields: Summary of available data

Akiyama

Yagi

Yan

2005

Global Biogeochemical Cycles

214

121

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“…A number of studies on upland crop systems reported that N deep placement generally reduced NO emissions 16 , 17 , 21 , which is in agreement with our present findings; but this practice tended to increase N 2 O emissions from upland crop systems, as a result of significant soil NO 2 − accumulations inducing generation of substantial N 2 O through biologic nitrifier-denitrification and abiotic processes (e.g., chemo-denitrification) 17 , 18 , 21 , 22 . In addition, a few studies on rice fields observed that the effect of N deep placement on N 2 O emissions could be either inhibitory 20 , stimulatory 23 or did not show any significant difference 15 . Only in one study the effect of urea deep placement on NO emissions from rice systems was investigated and the study concluded that NO emissions were negligible and not affected by N placement methods 20 .…”

Section: Discussionmentioning

confidence: 99%

Urea deep placement reduces yield-scaled greenhouse gas (CH4 and N2O) and NO emissions from a ground cover rice production system

Yao

Zheng

Zhang

et al. 2017

Sci Rep

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Ground cover rice production system (GCRPS), i.e., paddy soils being covered by thin plastic films with soil moisture being maintained nearly saturated status, is a promising technology as increased yields are achieved with less irrigation water. However, increased soil aeration and temperature under GCRPS may cause pollution swapping in greenhouse gas (GHG) from CH4 to N2O emissions. A 2-year experiment was performed, taking traditional rice cultivation as a reference, to assess the impacts of N-fertilizer placement methods on CH4, N2O and NO emissions and rice yields under GCRPS. Averaging across all rice seasons and N-fertilizer treatments, the GHG emissions for GCRPS were 1973 kg CO2-eq ha−1 (or 256 kg CO2-eq Mg−1), which is significantly lower than that of traditional cultivation (4186 kg CO2-eq ha−1or 646 kg CO2-eq Mg−1). Furthermore, if urea was placed at a 10–15 cm soil depth instead of broadcasting, the yield-scaled GHG emissions from GCRPS were further reduced from 377 to 222 kg CO2-eq Mg−1, as N2O emissions greatly decreased while yields increased. Urea deep placement also reduced yield-scaled NO emissions by 54%. Therefore, GCRPS with urea deep placement is a climate- and environment-smart management, which allows for maximal rice yields at minimal GHG and NO emissions.

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“… References: 1 Van Groenigen et al (2004); 2 Delgado & Mosier (1996); 3 Kaiser et al (1998); 4 Kusa et al (2002); 5 Lowrance et al (1998); 6 Suratno et al (1998); 7 Van der Weerden et al (2000); 8 Qian et al (1997); 9 Yan et al (2001); 10 Smith et al (1982); 11 Wagner‐Riddle et al (2007) and Jayasundara et al (2007); 12 Adviento‐Borbe et al (2007); 13 Barton et al (2008); 14 Zebarth et al (2008); 15 Burton et al (2008); 16 Rochette et al (2008); 17 Van Groenigen et al (2005a, b); 18 Hao et al (2001); 19 Mosier et al (2006) and Halvorson et al (2006). …”

Section: Meta‐analysis: Approach and Data Analysismentioning

confidence: 99%

Towards an agronomic assessment of N₂O emissions: a case study for arable crops

Groenigen

Velthof

Oenema

et al. 2010

European J Soil Science

646

374

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Agricultural soils are the main anthropogenic source of nitrous oxide (N 2 O), largely because of nitrogen (N) fertilizer use. Commonly, N 2 O emissions are expressed as a function of N application rate. This suggests that smaller fertilizer applications always lead to smaller N 2 O emissions. Here we argue that, because of global demand for agricultural products, agronomic conditions should be included when assessing N 2 O emissions. Expressing N 2 O emissions in relation to crop productivity (expressed as above-ground N uptake: 'yieldscaled N 2 O emissions') can express the N 2 O efficiency of a cropping system. We show how conventional relationships between N application rate, N uptake and N 2 O emissions can result in minimal yield-scaled N 2 O emissions at intermediate fertilizer-N rates. Key findings of a meta-analysis on yield-scaled N 2 O emissions by non-leguminous annual crops (19 independent studies and 147 data points) revealed that yield-scaled N 2 O emissions were smallest (8.4 g N 2 O-N kg −1 N uptake) at application rates of approximately 180-190 kg N ha −1 and increased sharply after that (26.8 g N 2 O-N kg −1 N uptake at 301 kg N ha −1 ). If the above-ground N surplus was equal to or smaller than zero, yield-scaled N 2 O emissions remained stable and relatively small. At an N surplus of 90 kg N ha −1 yield-scaled emissions increased threefold. Furthermore, a negative relation between N use efficiency and yield-scaled N 2 O emissions was found. Therefore, we argue that agricultural management practices to reduce N 2 O emissions should focus on optimizing fertilizer-N use efficiency under median rates of N input, rather than on minimizing N application rates.

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Nitrous oxide flux from irrigated rice fields in West Java

Cited by 33 publications

References 13 publications

Direct N₂O emissions from rice paddy fields: Summary of available data

Direct N₂O emissions from rice paddy fields: Summary of available data

Urea deep placement reduces yield-scaled greenhouse gas (CH4 and N2O) and NO emissions from a ground cover rice production system

Towards an agronomic assessment of N₂O emissions: a case study for arable crops

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Nitrous oxide flux from irrigated rice fields in West Java

Cited by 33 publications

References 13 publications

Direct N2O emissions from rice paddy fields: Summary of available data

Direct N2O emissions from rice paddy fields: Summary of available data

Urea deep placement reduces yield-scaled greenhouse gas (CH4 and N2O) and NO emissions from a ground cover rice production system

Towards an agronomic assessment of N2O emissions: a case study for arable crops

Contact Info

Product

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Direct N₂O emissions from rice paddy fields: Summary of available data

Direct N₂O emissions from rice paddy fields: Summary of available data

Towards an agronomic assessment of N₂O emissions: a case study for arable crops