Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China
The effect of controlled irrigation and drainage (CID) at different growth stages of rice on nitrogen (N) from rice paddy was studied. Submergence at different stages was imposed in specially designed experimental tanks in 2009 and 2010 based on alternate wetting and drying technology (AWD, the cont...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/913470 |
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| author | Guang-cheng Shao Ming-hui Wang Shuang-en Yu Na Liu Meng-hua Xiao Min Yuan |
| author_facet | Guang-cheng Shao Ming-hui Wang Shuang-en Yu Na Liu Meng-hua Xiao Min Yuan |
| author_sort | Guang-cheng Shao |
| collection | DOAJ |
| description | The effect of controlled irrigation and drainage (CID) at different growth stages of rice on nitrogen (N) from rice paddy was studied. Submergence at different stages was imposed in specially designed experimental tanks in 2009 and 2010 based on alternate wetting and drying technology (AWD, the control, CK). Treatments include CID treatment at tiller stage (T1), jointing-booting stage (T2), panicle initiation stage (T3), and milky stage (T4). Results showed that fertilization could significantly increase the concentration of NH4+-N and TN in surface water but had a little influence on NO3--N. The concentrations of NH4+-N and NO3--N in surface water increased at first and then decreased after fertilization, while the concentrations of NH4+-N and TN in groundwater kept on being relatively stable. Compared to CK, CID significantly increased the concentration of NH4+-N in surface water at four stages. However, it reduced the concentration of NO3--N. Consistent with the reduction of drainage, CID at four stages could significantly decrease the amount of NH4+-N and NO3--N losses by runoff in relation to CK. |
| format | Article |
| id | doaj-art-7ecd2c37ee7f4c68913b236e4e1b5dee |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-7ecd2c37ee7f4c68913b236e4e1b5dee2025-02-03T06:00:45ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/913470913470Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern ChinaGuang-cheng Shao0Ming-hui Wang1Shuang-en Yu2Na Liu3Meng-hua Xiao4Min Yuan5Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaSchool of Economics and Management, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaKey Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaKey Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China, Ministry of Education, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaThe effect of controlled irrigation and drainage (CID) at different growth stages of rice on nitrogen (N) from rice paddy was studied. Submergence at different stages was imposed in specially designed experimental tanks in 2009 and 2010 based on alternate wetting and drying technology (AWD, the control, CK). Treatments include CID treatment at tiller stage (T1), jointing-booting stage (T2), panicle initiation stage (T3), and milky stage (T4). Results showed that fertilization could significantly increase the concentration of NH4+-N and TN in surface water but had a little influence on NO3--N. The concentrations of NH4+-N and NO3--N in surface water increased at first and then decreased after fertilization, while the concentrations of NH4+-N and TN in groundwater kept on being relatively stable. Compared to CK, CID significantly increased the concentration of NH4+-N in surface water at four stages. However, it reduced the concentration of NO3--N. Consistent with the reduction of drainage, CID at four stages could significantly decrease the amount of NH4+-N and NO3--N losses by runoff in relation to CK.http://dx.doi.org/10.1155/2015/913470 |
| spellingShingle | Guang-cheng Shao Ming-hui Wang Shuang-en Yu Na Liu Meng-hua Xiao Min Yuan Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China Journal of Chemistry |
| title | Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China |
| title_full | Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China |
| title_fullStr | Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China |
| title_full_unstemmed | Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China |
| title_short | Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China |
| title_sort | potential of controlled irrigation and drainage for reducing nitrogen emission from rice paddies in southern china |
| url | http://dx.doi.org/10.1155/2015/913470 |
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