Innovative nitrogen management strategy reduced N2O emission while maintaining high pepper yield in subtropical condition
文献类型: 外文期刊
作者: Zhang, Fen 1 ; Ma, Xiao 1 ; Gao, Xiaopeng 5 ; Cao, Hailing 1 ; Liu, Fabo 1 ; Wang, Junjie 1 ; Guo, Guangzheng 1 ; Liang, Tao 1 ; Wang, Yan 7 ; Chen, Xinping 1 ; Wang, Xiaozhong 1 ;
作者机构: 1.Southwest Univ, Acad Agr Sci, Coll Resources & Environm, Chongqing 400716, Peoples R China
2.Southwest Univ, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing 400716, Peoples R China
3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Univ Manitoba, Dept Soil Sci, Winnipeg, MB R3T2N2, Canada
6.Guizhou Acad Agr Sci, Inst Subtrop Crops, Guiyang 562400, Guizhou, Peoples R China
7.Chongqing Acad Agr Sci, Chongqing 400000, Peoples R China
8.Southwest Univ, Minist Agr & Rural Affairs, Key Lab Low Carbon Green Agr Southwestern China, Chongqing 400716, Peoples R China
关键词: Emission factor; Enhanced efficiency fertilizer; Nitrogen rate; Nitrous oxide; Vegetable; Yield
期刊名称:AGRICULTURE ECOSYSTEMS & ENVIRONMENT ( 影响因子:6.6; 五年影响因子:6.7 )
ISSN: 0167-8809
年卷期: 2023 年 354 卷
页码:
收录情况: SCI
摘要: High N fertilizer inputs in subtropical vegetable systems under the warm and humid climatic conditions increase the risk of nitrous oxide (N2O) emissions. However, there is limited information available on integrated N management strategies to reduce N2O emissions from intensive open-field vegetable systems in subtropical region. Two plot-based field experiments were conducted in subtropical southwest China to examine the effects of different N management strategies on N2O emissions from a typical open-field pepper (Capsicum annuum L.) production system. Experiment 1 included five N rates (0, 175, 250, 325, and 400 kg ha-1) with conventional urea. Experiment 2 included a 0 N control and four N sources (conventional urea, organic fertilizer, nitrification inhibitor-based enhanced efficiency fertilizer ENTEC26, and controlled release urea) applied under an optimized N rate (250 kg N ha-1). The results of Experiment 1 showed that cumulative N2O emission and emission factor were 4.05 kg N ha-1 season- 1 and 0.96%, respectively, under the conventional management (N400). N2O emissions increased exponentially with increasing N rates. Compared to the N400 treatment, application of conventional urea at the optimal rate (250 kg N ha-1) significantly reduced cumulative N2O emissions by 54% while maintaining similar pepper yield. The results from Experiment 2 indicated that the use of enhanced efficiency fertilizers at the optimal rate further reduced N2O emission by 30%- 50% compared to conventional urea, while increasing pepper yield by 6.7%- 9.0%. This resulted in a 36%- 53% reduction of yield-scaled N2O emission intensity. In particular, the use of nitrification inhibitor was 28% more effective than controlled release urea for N2O mitigation. These results suggest that the application of enhanced efficiency fertilizers at an optimum N rate could produce more vegetables while reducing N2O emission, thereby promoting sustainable vegetable production in the subtropic regions.
- 相关文献
作者其他论文 更多>>
-
Optimized Nitrogen Fertilizer Rate Can Increase Yield and Nitrogen Use Efficiency for Open-Field Chinese Cabbage in Southwest China
作者:Cao, Hailin;Zhang, Fen;Wang, Junjie;Liu, Fabo;Guo, Guangzheng;Tian, Yiming;Liang, Tao;Chen, Xinping;Wang, Xiaozhong;Cao, Hailin;Zhang, Fen;Wang, Junjie;Liu, Fabo;Guo, Guangzheng;Tian, Yiming;Liang, Tao;Chen, Xinping;Wang, Xiaozhong;Fu, Jian;Ma, Xiao;Liang, Tao;Zhou, Na;Wang, Yan
关键词:Chinese cabbage; optimized N fertilizer rate; yield; N use efficiency; critical plant N concentration; critical root-zone soil N-min
-
A comprehensive continental-scale analysis of carbon footprint of food production: Comparing continents around the world
作者:Feng, Shi;Lakshmanan, Prakash;Zhang, Yi;Zhang, Tingting;Chen, Xinping;Wang, Xiaozhong;Lakshmanan, Prakash;Lakshmanan, Prakash;Lakshmanan, Prakash;Lakshmanan, Prakash;Liang, Tao;Zhang, Weijin
关键词:Food categories; Carbon footprint; Inter -continental comparisons; Total GHG emission
-
Functional characterization of two 3-dehydroquinases of AroQ1 and AroQ2 in the shikimate pathway and expression of genes for the type III secretion system in Ralstonia solanacearum
作者:Zhang, Qingshan;Wu, Bofan;Han, Liangliang;Guo, Tao;Yu, Duan;Liang, Tao;Wang, Yan
关键词:Ralstonia solanacearum; type three secretion system (T3SS); pathogenesis; global regulation network; biosynthesis of aromatic amino acids
-
The Extension of Vegetable Production to High Altitudes Increases the Environmental Cost and Decreases Economic Benefits in Subtropical Regions
作者:Liang, Tao;Tao, Weilin;Wang, Yan;Zhou, Na;Hu, Wei;Zhang, Tao;Liao, Dunxiu;Chen, Xinping;Wang, Xiaozhong
关键词:life-cycle assessment; pepper; net ecosystem economic benefit; environmental cost; mitigation potential
-
Soil phosphorus availability and fractionation in response to different phosphorus sources in alkaline and acid soils: a short-term incubation study
作者:Wang, Yuan;Zhang, Wei;Yang, Huaiyu;Chen, Xinping;Wang, Yuan;Zhang, Wei;Lakshmanan, Prakash;Liang, Tao;Yang, Huaiyu;Chen, Xinping;Mueller, Torsten;Lakshmanan, Prakash;Lakshmanan, Prakash;Liu, Yu;Liang, Tao;Wang, Lin
关键词:
-
Effects of in vitro simulated digestion and fecal fermentation of polysaccharides from straw mushroom (Volvariella volvacea) on its physicochemical properties and human gut microbiota
作者:Hu, Wei;Di, Qing;Liang, Tao;Zhou, Na;Chen, Hongxia;Zeng, Zhihong;Luo, Yang;Shaker, Majid;Shaker, Majid
关键词:Short -chain fatty acids; Volvariella volvacea polysaccharide; Gut microbiota; In vitro digestion; Fecal fermentation
-
Positive regulation of the PhcB neighbouring regulator PrhX on expression of the type III secretion system and pathogenesis in Ralstonia solanacearum
作者:Huang, Jiajun;Guo, Tao;Zhang, Yong;Wang, Rongsheng;Zhang, Qi;Hikichi, Yasufumi;Ohnishi, Kouhei;Wang, Chunli;Liang, Tao;Jiang, Gaofei;Zhang, Yong
关键词:pathogenesis; PhcA; quorum sensing; Ralstonia solanacearum; type III secretion system