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| Effects of coated urea inhibitor encapsulated by bio-based film on soil greenhouse gas emission and Brassica chinensis yield |
| Received:June 11, 2020 |
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| KeyWord:bio-based coated urea;biological inhibitor;greenhouse gases emission reduction;global warming potential;Brassica chinensis yield |
| Author Name | Affiliation | E-mail | | LIU Chu-tong | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | | | CHEN Song-ling | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | | | ZOU Hong-tao | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | zouhongtao2001@163.com | | YE Xu-hong | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | | | CHEN Chun-yu | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | | | LEI Yang | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | | | ZHANG Yu-long | School of Land and Environment, Shenyang Agricultural University/Key Laboratory of Cultivated Land Conservation, Ministry of Agriculture and Rural Affairs/National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Shenyang 110161, China | |
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| Abstract: |
| To explore the effects of a coated urea inhibitor encapsulated in a bio-based film on greenhouse gas(GHG) emissions, the cumulative emissions, global warming potential(GWP), and emission intensity(GHGI) were determined through static box-gas chromatography in a pot experiment, and the yield of Brassica chinensis was simultaneously measured. Our results indicated that cumulative emissions of GHGs(N2O, CO2, and CH4) from the treatments using coated urea inhibitor(I), a bio-based coated urea(CRU), and a urea inhibitor encapsulated by a bio-based film(CIRU) were significantly reduced. Compared with that of conventional urea(U), the cumulative N2O emissions of treatment I, CRU, and CIRU were significantly reduced by 20.79%~79.52%, CO2 emissions by 46.53%~62.24%, and CH4 emissions by 25.38%~30.11%. The GWP under treatments I, CRU, and CIRU were significantly lower than that under U by 40.44%, 60.66%, and 65.02%, respectively. The trend of GHGI was the same as that of GWP. The GHGI under treatments I, CRU, and CIRU were significantly lower than that under U by 26.32%, 70.53%, and 78.95%, respectively. CIRU had a greater effect on GHG emission reduction than the other treatments. In terms of B. chinensis yield, CIRU resulted in the highest yield(1 960.00 kg·hm-2). The CIRU was 68.00%, which was significantly higher than that under the U treatment. Thus, coated inhibitor urea encapsulated by bio-based film could reduce the emission of GHGs and partial loss of nitrogen, protect the environment, and increase production. This provides a new method for the development of agriculture in China. |
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