Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon
Soil organic carbon (SOC) plays a critical role in rice production, but its feedback to the fate of fertilizer nitrogen (N) is not clear. In this study, a pot experiment was conducted to investigate the responses of rice yield and the fate of fertilizer N to different SOC levels using 15N-labelled u...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2017-09-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201709-0005_responses-of-rice-yield-and-the-fate-of-fertilizer-nitrogen-to-soil-organic-carbon.php |
| _version_ | 1797898182065127424 |
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| author | Weifu PENG Yongjun ZENG Qinghua SHI Shan HUANG |
| author_facet | Weifu PENG Yongjun ZENG Qinghua SHI Shan HUANG |
| author_sort | Weifu PENG |
| collection | DOAJ |
| description | Soil organic carbon (SOC) plays a critical role in rice production, but its feedback to the fate of fertilizer nitrogen (N) is not clear. In this study, a pot experiment was conducted to investigate the responses of rice yield and the fate of fertilizer N to different SOC levels using 15N-labelled urea. The results showed that rice biomass, yield and the total N uptake increased significantly with increasing SOC content. Both rice N uptake from soil and urea increased significantly with increasing SOC content. The recovery rate and residual rate of fertilizer N improved significantly with increasing SOC content, leading to a reduced rate of not-specified fertilizer N. Therefore, it was concluded that high SOC could not only improve rice yield and fertilizer N recovery, but also could increase the retention of fertilizer N and decrease the not-specified N in the paddy soil. |
| first_indexed | 2024-04-10T08:09:10Z |
| format | Article |
| id | doaj.art-fce589c6cd6b4da6886f0d1fca5aa2c9 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:09:10Z |
| publishDate | 2017-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-fce589c6cd6b4da6886f0d1fca5aa2c92023-02-23T03:46:31ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682017-09-0163941642110.17221/389/2017-PSEpse-201709-0005Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbonWeifu PENG0Yongjun ZENG1Qinghua SHI2Shan HUANGMinistry of Education and Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Jiangxi Agricultural University, Nanchang, P.R. ChinaMinistry of Education and Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Jiangxi Agricultural University, Nanchang, P.R. ChinaMinistry of Education and Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Jiangxi Agricultural University, Nanchang, P.R. ChinaSoil organic carbon (SOC) plays a critical role in rice production, but its feedback to the fate of fertilizer nitrogen (N) is not clear. In this study, a pot experiment was conducted to investigate the responses of rice yield and the fate of fertilizer N to different SOC levels using 15N-labelled urea. The results showed that rice biomass, yield and the total N uptake increased significantly with increasing SOC content. Both rice N uptake from soil and urea increased significantly with increasing SOC content. The recovery rate and residual rate of fertilizer N improved significantly with increasing SOC content, leading to a reduced rate of not-specified fertilizer N. Therefore, it was concluded that high SOC could not only improve rice yield and fertilizer N recovery, but also could increase the retention of fertilizer N and decrease the not-specified N in the paddy soil.https://pse.agriculturejournals.cz/artkey/pse-201709-0005_responses-of-rice-yield-and-the-fate-of-fertilizer-nitrogen-to-soil-organic-carbon.phporyza sativaisotope tracingsoil fertilityfertilizationflooded rice systemmacronutrient |
| spellingShingle | Weifu PENG Yongjun ZENG Qinghua SHI Shan HUANG Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon Plant, Soil and Environment oryza sativa isotope tracing soil fertility fertilization flooded rice system macronutrient |
| title | Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon |
| title_full | Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon |
| title_fullStr | Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon |
| title_full_unstemmed | Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon |
| title_short | Responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon |
| title_sort | responses of rice yield and the fate of fertilizer nitrogen to soil organic carbon |
| topic | oryza sativa isotope tracing soil fertility fertilization flooded rice system macronutrient |
| url | https://pse.agriculturejournals.cz/artkey/pse-201709-0005_responses-of-rice-yield-and-the-fate-of-fertilizer-nitrogen-to-soil-organic-carbon.php |
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