Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions
Abstract As one of the important greenhouse gas, nitrous oxide (N2O) has attracted much attention globally under climate change context. Agricultural practices are the main sources of greenhouse gas emissions. Nevertheless, scarcity of literature is available on the effects of different tillage meas...
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| Format: | Article |
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Nature Portfolio
2022-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-11391-6 |
| _version_ | 1811289390730706944 |
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| author | Jianyu Yuan Lijuan Yan Guang Li Mahran Sadiq Nasir Rahim Jiangqi Wu Weiwei Ma Guorong Xu Mengyin Du |
| author_facet | Jianyu Yuan Lijuan Yan Guang Li Mahran Sadiq Nasir Rahim Jiangqi Wu Weiwei Ma Guorong Xu Mengyin Du |
| author_sort | Jianyu Yuan |
| collection | DOAJ |
| description | Abstract As one of the important greenhouse gas, nitrous oxide (N2O) has attracted much attention globally under climate change context. Agricultural practices are the main sources of greenhouse gas emissions. Nevertheless, scarcity of literature is available on the effects of different tillage measures on soil N2O emission under spring wheat (Triticum aestivum L.) ecosystem in the semi-arid area of the Loess Plateau. The main objective of the experimental study was to explore the influence of conservation tillage techniques on soil physicochemical properties, nitrous oxide emission and yield in the Northern semi-arid Dingxi region of China. Four treatments viz., conventional tillage (CT), no tillage (NT), straw mulch with conventional tillage (TS) and stubble-return with no-till (NTS) were evaluated under randomized complete block design with three replications. Our results depicted that compared with conventional tillage, bulk density and water content of topsoil was increased and soil pH value was reduced under conservation tillage techniques. Conservation tillage NT, TS and NTS increased organic carbon, TN, MBN and NH4 +-N and reduced the accumulation of NO3 –N. Additionally, although the N2O emission under NT, TS and NTS was 8.95, 41.90 and 21.05% respectively higher than under T treatment, the corresponding wheat yield was 15.40, 31.97 and 63.21% higher than T treatment. Moreover, correlation analysis showed that soil moisture and temperature were the most significant factors affecting soil N2O emission. The NTS treatment pointedly increased crop yield without significantly increasing soil N2O emission. Consequently, based on economic and environmental benefits and considering N2O emission and crop yield, we suggest that NTS technique is the best conservation tillage strategy in the semi-arid environmental zone of the Loess Plateau of Dingxi China. |
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| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T03:54:19Z |
| publishDate | 2022-04-01 |
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| spelling | doaj.art-11d8a188b8c54e5fbb756e6b254000412022-12-22T03:03:41ZengNature PortfolioScientific Reports2045-23222022-04-0112111310.1038/s41598-022-11391-6Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditionsJianyu Yuan0Lijuan Yan1Guang Li2Mahran Sadiq3Nasir Rahim4Jiangqi Wu5Weiwei Ma6Guorong Xu7Mengyin Du8College of Forestry, Gansu Agricultural UniversityCollege of Agriculture, Gansu Agricultural UniversityCollege of Forestry, Gansu Agricultural UniversityCollege of Forestry, Gansu Agricultural UniversityDepartment of Soil and Environmental Sciences, University of Poonch RawalakotCollege of Forestry, Gansu Agricultural UniversityCollege of Forestry, Gansu Agricultural UniversityCollege of Forestry, Gansu Agricultural UniversityCollege of Forestry, Gansu Agricultural UniversityAbstract As one of the important greenhouse gas, nitrous oxide (N2O) has attracted much attention globally under climate change context. Agricultural practices are the main sources of greenhouse gas emissions. Nevertheless, scarcity of literature is available on the effects of different tillage measures on soil N2O emission under spring wheat (Triticum aestivum L.) ecosystem in the semi-arid area of the Loess Plateau. The main objective of the experimental study was to explore the influence of conservation tillage techniques on soil physicochemical properties, nitrous oxide emission and yield in the Northern semi-arid Dingxi region of China. Four treatments viz., conventional tillage (CT), no tillage (NT), straw mulch with conventional tillage (TS) and stubble-return with no-till (NTS) were evaluated under randomized complete block design with three replications. Our results depicted that compared with conventional tillage, bulk density and water content of topsoil was increased and soil pH value was reduced under conservation tillage techniques. Conservation tillage NT, TS and NTS increased organic carbon, TN, MBN and NH4 +-N and reduced the accumulation of NO3 –N. Additionally, although the N2O emission under NT, TS and NTS was 8.95, 41.90 and 21.05% respectively higher than under T treatment, the corresponding wheat yield was 15.40, 31.97 and 63.21% higher than T treatment. Moreover, correlation analysis showed that soil moisture and temperature were the most significant factors affecting soil N2O emission. The NTS treatment pointedly increased crop yield without significantly increasing soil N2O emission. Consequently, based on economic and environmental benefits and considering N2O emission and crop yield, we suggest that NTS technique is the best conservation tillage strategy in the semi-arid environmental zone of the Loess Plateau of Dingxi China.https://doi.org/10.1038/s41598-022-11391-6 |
| spellingShingle | Jianyu Yuan Lijuan Yan Guang Li Mahran Sadiq Nasir Rahim Jiangqi Wu Weiwei Ma Guorong Xu Mengyin Du Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions Scientific Reports |
| title | Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions |
| title_full | Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions |
| title_fullStr | Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions |
| title_full_unstemmed | Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions |
| title_short | Effects of conservation tillage strategies on soil physicochemical indicators and N2O emission under spring wheat monocropping system conditions |
| title_sort | effects of conservation tillage strategies on soil physicochemical indicators and n2o emission under spring wheat monocropping system conditions |
| url | https://doi.org/10.1038/s41598-022-11391-6 |
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