Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production
Abstract Improving nitrogen (N) use efficiency (NUE) in crop plants is important to reduce the negative impact of excessive N on the environment. Although biochar‐blended fertilizer had been increasingly tested in crop production, the fate of fertilized N in soil and plant had not been elucidated in...
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Wiley
2022
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oai:doaj.org-article:372fcf42cf9c4b68972de1ed03509ab82021-12-04T04:51:18ZAssessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production1757-17071757-169310.1111/gcbb.12904https://doaj.org/article/372fcf42cf9c4b68972de1ed03509ab82022-01-01T00:00:00Zhttps://doi.org/10.1111/gcbb.12904https://doaj.org/toc/1757-1693https://doaj.org/toc/1757-1707Abstract Improving nitrogen (N) use efficiency (NUE) in crop plants is important to reduce the negative impact of excessive N on the environment. Although biochar‐blended fertilizer had been increasingly tested in crop production, the fate of fertilized N in soil and plant had not been elucidated in field conditions. In this study, a novel biochar‐blended urea (BU) was prepared by pelleting maize straw biochar, bentonite, sepiolite, carboxymethylcellulose sodium, and chitosan with urea (commercial urea without biochar [CU]). N fertilization in a winter wheat field was treated with BU and CU at both 265 kg N ha−1 (HL) and 186 kg N ha−1 (LN). Within a treatment plot, a microplot was fertilized with 15N‐labeled urea at a relevant N level. We investigated the influence of fertilizer management on biomass, grain yield, bioaccumulation of nutrient, soil properties, 15N isotopic abundance, and greenhouse gas emissions. Microscopic and spectroscopic analysis showed that micro/nanonetwork of biochar could bind N to form a loss control agglomerated particle, and organo‐mineral coatings on BU may protect N from quick release. Compared with CU, BU significantly increased grain yield by 13% and 38%, and grain N allocation by 19% and 55%, respectively, at HN and LN level. The total recovery of urea 15N in wheat plant (15N based NUE) was 32.8% under CU regardless of N rates but increased to 41.7% (HN rate) and 56.3% (LN rate) under BU. Whereas, the soil proportion (soil residual 15N) was 20.1% and 13.4% under CU but 32.5% and 18.8% under BU, in 0‐20cm topsoil, respectively, at HN and LN rate. Compared with the CU, BU had no effect on CO2 and CH4 emissions but significantly reduced the total N2O emission by 23%–28%. These important findings suggested that BU can be beneficial to uplift plant NUE to reduce reactive N loading but boost crop production.Wei ShiRongjun BianLianqing LiWanli LianXiaoyu LiuJufeng ZhengKun ChengXuhui ZhangMarios DrososStephen JosephGenxing PanWileyarticle15N labelingbiocharnitrogen use efficiencysoil–plant systemureawheat productionRenewable energy sourcesTJ807-830Energy industries. Energy policy. Fuel tradeHD9502-9502.5ENGCB Bioenergy, Vol 14, Iss 1, Pp 65-83 (2022) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
15N labeling biochar nitrogen use efficiency soil–plant system urea wheat production Renewable energy sources TJ807-830 Energy industries. Energy policy. Fuel trade HD9502-9502.5 |
| spellingShingle |
15N labeling biochar nitrogen use efficiency soil–plant system urea wheat production Renewable energy sources TJ807-830 Energy industries. Energy policy. Fuel trade HD9502-9502.5 Wei Shi Rongjun Bian Lianqing Li Wanli Lian Xiaoyu Liu Jufeng Zheng Kun Cheng Xuhui Zhang Marios Drosos Stephen Joseph Genxing Pan Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| description |
Abstract Improving nitrogen (N) use efficiency (NUE) in crop plants is important to reduce the negative impact of excessive N on the environment. Although biochar‐blended fertilizer had been increasingly tested in crop production, the fate of fertilized N in soil and plant had not been elucidated in field conditions. In this study, a novel biochar‐blended urea (BU) was prepared by pelleting maize straw biochar, bentonite, sepiolite, carboxymethylcellulose sodium, and chitosan with urea (commercial urea without biochar [CU]). N fertilization in a winter wheat field was treated with BU and CU at both 265 kg N ha−1 (HL) and 186 kg N ha−1 (LN). Within a treatment plot, a microplot was fertilized with 15N‐labeled urea at a relevant N level. We investigated the influence of fertilizer management on biomass, grain yield, bioaccumulation of nutrient, soil properties, 15N isotopic abundance, and greenhouse gas emissions. Microscopic and spectroscopic analysis showed that micro/nanonetwork of biochar could bind N to form a loss control agglomerated particle, and organo‐mineral coatings on BU may protect N from quick release. Compared with CU, BU significantly increased grain yield by 13% and 38%, and grain N allocation by 19% and 55%, respectively, at HN and LN level. The total recovery of urea 15N in wheat plant (15N based NUE) was 32.8% under CU regardless of N rates but increased to 41.7% (HN rate) and 56.3% (LN rate) under BU. Whereas, the soil proportion (soil residual 15N) was 20.1% and 13.4% under CU but 32.5% and 18.8% under BU, in 0‐20cm topsoil, respectively, at HN and LN rate. Compared with the CU, BU had no effect on CO2 and CH4 emissions but significantly reduced the total N2O emission by 23%–28%. These important findings suggested that BU can be beneficial to uplift plant NUE to reduce reactive N loading but boost crop production. |
| format |
article |
| author |
Wei Shi Rongjun Bian Lianqing Li Wanli Lian Xiaoyu Liu Jufeng Zheng Kun Cheng Xuhui Zhang Marios Drosos Stephen Joseph Genxing Pan |
| author_facet |
Wei Shi Rongjun Bian Lianqing Li Wanli Lian Xiaoyu Liu Jufeng Zheng Kun Cheng Xuhui Zhang Marios Drosos Stephen Joseph Genxing Pan |
| author_sort |
Wei Shi |
| title |
Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| title_short |
Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| title_full |
Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| title_fullStr |
Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| title_full_unstemmed |
Assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| title_sort |
assessing the impacts of biochar‐blended urea on nitrogen use efficiency and soil retention in wheat production |
| publisher |
Wiley |
| publishDate |
2022 |
| url |
https://doaj.org/article/372fcf42cf9c4b68972de1ed03509ab8 |
| work_keys_str_mv |
AT weishi assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT rongjunbian assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT lianqingli assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT wanlilian assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT xiaoyuliu assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT jufengzheng assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT kuncheng assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT xuhuizhang assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT mariosdrosos assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT stephenjoseph assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction AT genxingpan assessingtheimpactsofbiocharblendedureaonnitrogenuseefficiencyandsoilretentioninwheatproduction |
| _version_ |
1718372845876150272 |