Producing more grain yield of rice with less ammonia volatilization and greenhouse gases emission using slow/controlled-release urea
- 118 Downloads
Ammonia (NH3) volatilization and greenhouse gas (GHG) emission from rice (Oryza sativa L.) fields contaminate the atmospheric environment and lead to global warming. Field trials (2013–2015) were conducted to estimate the influences of different types of fertilization practices on grain yield, NH3 volatilization, and methane (CH4) and nitrous oxide (N2O) emissions in a double rice cropping system in Central China. Results showed that grain yields of rice were improved significantly by using slow/controlled-release urea (S/C-RU). Compared with farmers’ fertilizer practice (FFP) treatment, average annual grain yield with application of polymer-coated urea (CRU), nitrapyrin-treated urea (CP), and urea with effective microorganism (EM) treatments was increased by 18.0%, 16.2%, and 15.4%, respectively. However, the effects on NH3 volatilization and CH4 and N2O emissions differed in diverse S/C-RU. Compared with that of the FFP treatment, the annual NH3 volatilization, CH4 emission, and N2O emissions of the CRU treatment were decreased by 64.8%, 19.7%, and 35.2%, respectively; the annual CH4 and N2O emissions of the CP treatment were reduced by 33.7% and 40.3%, respectively, while the NH3 volatilization was increased by 18.5%; the annual NH3 and N2O emissions of the EM treatment were reduced by 6.3% and 28.7%, while the CH4 emission was improved by 4.3%. Overall, CP showed the best emission reduction with a decrement of 34.3% in global warming potential (GWP) and 44.4% in the greenhouse gas intensity (GHGI), followed by CRU treatment with a decrement of 21.1% in GWP and 31.7% in GHGI, compared with that of the FFP treatment. Hence, it is suggested that polymer-coated urea can be a feasible way of mitigating NH3 volatilization and CH4 and N2O emission from rice fields while maintaining or increasing the grain yield in Chinese, the double rice cropping system.
KeywordsAmmonia volatilization Methane and nitrous oxide emission,·Slow/controlled-release urea Grain yield Double rice cropping system
This research was supported by the National Key Research and Development Program of China (2017YFD0200108), the Special Fund for Agro-scientific Research in the Public Interest from the Ministry of Agriculture, China (201303103), and the Fundamental Research Funds for the Central Universities (2662017JC010).
- Akiyama H, Yagi K, Yan XY (2005) Direct N2O emissions from rice paddy fields: summary of available data. Glob Biogeochem Cycles 19Google Scholar
- Fan XH, Song YS, Lin DX, Yang LZ, Luo JF (2006) Ammonia volatilization losses and N-15 balance from urea applied to rice on a paddy soil. J Environ Sci 18:299–303Google Scholar
- Grant C (2005) Policy aspects related to the use of enhanced-efficiency fertilizers: viewpoint of the scientific community. In: Moiser A, Galloway J (eds) IFA international workshop on enhanced-efficiency fertilizers. International Fertilizer Association, Frankfurt, p 1–11Google Scholar
- Hillier J, Brentrup F, Wattenbach M, Walter C, Garcia-Suarez T, Mila-I-Canals L, Smith PA (2012) Which cropland greenhouse gas mitigation options give the greatest benefits in different world regions? Climate and soil-specific predictions from integrated empirical models. Glob Chang Biol 18:1880–1894CrossRefGoogle Scholar
- IPCC (2006) IPCC 2006 revised good practice guidelines for greenhouse gas inventories. In: Intergovernmental Panel on Climate Change (IPCC), Institute for Global Environmental Strategies. Japan, TokyoGoogle Scholar
- IPCC (2007) Climate change 2007-the physical science basis, contribution of working group I to the fourth assessment report of the IPCC. Cambridge University Press, New YorkGoogle Scholar
- Kightley D, Nedwell DB, Cooper M (1995) Capacity for methane oxidation in landfill cover soils measured in laboratory-scale soil microcosms. Appl Environ Microbiol 61:592–601Google Scholar
- Nayak D, Saetnan E, Cheng K, Wang W, Koslowski F, Cheng YF, Zhu WY, Wang JK, Liu JX, Moran DC, Yan XY, Cardenas LM, Newbold CJ, Pan GX, Lu YL, Smith P (2015) Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture. Agric Ecosyst Environ 209:108–124CrossRefGoogle Scholar
- Shang QY, Yang XX, Gao CM, Wu PP, Liu JJ, Xu YC, Shen QR, Zou JM, Guo SW (2011) Net annual global warming potential and greenhouse gas intensity in Chinese double rice-cropping systems: a 3-year field measurement in long-term fertilizer experiments. Glob Chang Biol 17:2196–2210CrossRefGoogle Scholar