Optimizing fertilization depth for yield improvement and ammonia mitigation in double-cropping rice
文献类型: 外文期刊
作者: Lan, Xianjin;Song, Dali;Zhou, Wei;Lv, Zhenzhen;Ji, Jianhua;Hou, Hongqian;Xiao, Jingshang;Liu, Yiren;Liu, Xiumei;Sun, Gang;Liu, Guangrong;Zhou, Chunhuo
作者机构:
关键词: Fertilization depth;Ammonia emission;Double-cropping paddy filed;Nitrogen use efficiency
期刊名称: FIELD CROPS RESEARCH
ISSN: 0378-4290
年卷期: 2025 年 336 卷
页码:
收录情况: SCIE(2025版)
摘要: Context: Ammonia (NH3) volatilization is the dominant pathway of nitrogen (N) loss in paddy fields. Deep fertilization (DF) at an appropriate depth can achieve optimum crop yield potential with less N loss. However, it is unclear whether modifying fertilization depth could reduce the NH3 volatilization and improving the yield and nitrogen utilization efficiency (NUE) in double-cropping paddy field. Objective and methods: To address this gap, we conducted a two-year field experiment (2022-2024) in a subtropical area of southern China and systematically analyzed the effects of different fertilization depths on NH3 volatilization, crop growth, grain yield, NUE and net economic benefits (NEB) in early- and late-rice season. A blank without fertilizer application (control) and five fertilizer application depths [0 cm (BF), 2.5 cm (DF-2.5), 5 cm (DF-5), 7.5 cm (DF-7.5), and 10 cm (DF-10)] with three replicates were investigated. Results: The results showed that DF practices significantly reduced NH3 volatilization of early- and late-rice season with 49.7 %-79.4 % and 29.3 %-65.4 %, respectively, by decreasing floodwater pH and NH4+-N concentration compared to BF treatment. The cumulative NH3 volatilization decreased with increasing fertilization depth according to a quadratic function. Moreover, DF treatments improved grain development and productive panicle formation by enhancing the aboveground biomass accumulation and N uptake during heading to harvest stage. The rice grain yield and NEB were increased with increasing fertilization depth from 0 to 7.5 cm in both seasons and the best rice productivity and NEB were achieved with a depth of 7.5 cm. In addition, DF-7.5 had a significantly (p < 0.05) higher NUE than DF-5 and DF-10 in both years, with increases of 10.1 %-31.8 % and 6.1 %-16.8 %, respectively. Conclusions and implications: Overall, these results showed N fertilizer application at a depth of 7.5 cm in the double-cropping paddy of southern China was effective in reducing N loss via the NH3 volatilization, promoting rice growth and improving grain yield, NUE, and NEB. These findings provide a theoretical foundation for the optimization of fertilization strategies to enable sustainable rice production in the subtropical region.
分类号:
- 相关文献
作者其他论文 更多>>
-
Comprehensive evaluation method to reveal the combined effects of maturity and modified atmosphere packaging on jujube storage qualities
作者:Liu, Hui;Yang, Wenbo;Zhang, Qiang;Lv, Zhenzhen;Zhang, Guangdi;Jiao, Zhonggao;Liu, Jiechao
关键词:Jujube;Storage quality;Modified atmosphere packaging;Harvest maturity;Comprehensive evaluation
-
Integrated evaluation of antifungal activity of pomegranate peel polyphenols against a diverse range of postharvest fruit pathogens
作者:Nawaz, Muhammad;Pan, Junkun;Liu, Hui;Umer, Muhammad Jawad;Liu, Jiechao;Yang, Wenbo;Lv, Zhenzhen;Zhang, Qiang;Jiao, Zhonggao
关键词:Pomegranate peel;Polyphenols;Antifungal activity;Fruit;Postharvest pathogens
-
Co-benefits of a customized nutrient management approach tailored to smallholder farming for cabbage (Brassica oleracea L.)
作者:Liu, Mengjiao;Yang, Binggeng;Wang, Xiya;Xu, Xinpeng;Ding, Wencheng;He, Ping;Zhou, Wei
关键词:Nutrient expert system;Cabbage;Yield response;Nutrient-recovery efficiency;Economic benefit
-
Aggregate turnover in a dryland red soil after long-term application of chemical fertilizers or manure
作者:Qiu, Shaojun;Zhao, Shicheng;Xu, Xinpeng;Wang, Xiubin;He, Ping;Yu, Xichu;Liu, Kailou;Menon, Manoj;Yang, Huiyi;Christie, Peter;Zhou, Wei
关键词:carbon stocks;fertilizer practices;model simulation;red soil;soil aggregates
-
Microbial composition, assembly, and functional characteristics of generalized and specialized subcommunities under flooded paddy fields: long-term pesticide versus non-pesticide models
作者:Wang, Jing-Wen;Han, Cai-Ting;Wu, Dong-Ming;Zhou, Wei;Gao, Miao;Li, Yu-Shuang
关键词:pesticide pollution;microbial community generalists and specialist;soil health;microbial network;microbial function
-
Estimating All-Weather Land Surface Temperature: A Method Considering Cloud Fraction and Energy Balance
作者:Yu, Wenping;Deng, Xiangyi;Xiao, Yao;Huang, Yajun;Zhou, Wei;Liu, Xiangyang
关键词:Land surface temperature;Land surface;Clouds;Accuracy;Microwave theory and techniques;Spatial resolution;Electromagnetic heating;MODIS;Microwave integrated circuits;Microwave FET integrated circuits;All-weather;land surface energy balance (SEB);land surface temperature (LST);passive microwave (PMW);thermal infrared (TIR)
-
Impact of climate change on arsenic concentrations in paddy rice and the associated dietary health risks in Asia: an experimental and modelling study
作者:Wang, Dongming;Kim, Brent F.;Nachman, Keeve E.;Chiger, Andrea A.;Herbstman, Julie;Loladze, Irakli;Zhao, Fang-Jie;Chen, Chuan;Gao, Axiang;Zhu, Yongguan;Li, Fangbai;Shen, Ren Fang;Yan, Xiaoyuan;Zhang, Jiabao;Cai, Chuang;Song, Lian;Shen, Min;Ma, Chuanqi;Yang, Xiong;Zhou, Wei;Wang, Yujun;Tang, Haoye;Jiang, Yu;Ding, Yanfeng;Liu, Wuxing;Sun, Jianqiang;Navas-Acien, Ana;Zhu, Chunwu;Ziska, Lewis H.
关键词: