Water retention and warming effect of integrated rice management for the hilly areas of southwest China
文献类型: 外文期刊
作者: Dong, Yujiao 1 ; Zhang, Guangbin 3 ; Ma, Jing 3 ; Hilario, Padilla 5 ; Lu, Shihua 1 ;
作者机构: 1.Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu 610066, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Agr Environm Southwest Mt Areas, Chengdu 610066, Peoples R China
3.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
4.State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
5.Kadoorie Farm & Bot Garden, Hong Kong 999077, Peoples R China
期刊名称:AGRONOMY JOURNAL ( 影响因子:2.24; 五年影响因子:2.829 )
ISSN: 0002-1962
年卷期: 2020 年 112 卷 4 期
页码:
收录情况: SCI
摘要: Seasonal drought and low temperatures strongly limit rice (Oryza sativa L.) grain yield in the hilly areas of Southwest China. An integrated rice management (IRM) system was developed, which integrates ridge cultivation with plastic mulching, furrow irrigation, and triangular transplanting. A field experiment was conducted from 2011 to 2015. The effects of IRM on grain yield, yield components, soil moisture content (theta), and soil temperature (T-soil) were evaluated. Compared with traditional rice management (TRM), IRM significantly improved grain yield by 29.9%. Furthermore, the yield of IRM (8181-9267 kg ha(-1), CV: 7.6%) remained relatively stable. The rice tiller of TRM was highly related to the accumulated rainfall during the rice tillering stage in drought years (2011 and 2014). The water retention capability of IRM decreased the influence of interannual rainfall on rice growth and grain yield. In 2015, the theta in the 0-20-cm layer was higher than the threshold for rice root growth over the rice-growing season. Compared with TRM, T-soil of the 0-20-cm layer in IRM was 4.7 degrees C higher during the early tillering stage. The >10 degrees C soil effective accumulated temperature in IRM was also higher, and the difference was highest at the maximum tillering stage. The warming effect of IRM, particularly during the tillering stage, stimulated early growth and stronger tillering. In summary, the water retention capacity and warming effect of IRM were key factors for the improvement of rice yield; most importantly, the yields were stabilized in both drought and rainy years.
- 相关文献
作者其他论文 更多>>
-
Greenhouse gas emissions from ratoon rice fields among different varieties
作者:Song, Kaifu;Zhang, Guangbin;Ma, Jing;Xu, Hua;Song, Kaifu;Peng, Shaobing;Lv, Shihua
关键词:Greenhouse gas; Greenhouse gas intensity; Ratoon rice; Rice varieties; Yield
-
Root System Architecture Differences of Maize Cultivars Affect Yield and Nitrogen Accumulation in Southwest China
作者:Guo, Song;Zhou, Zijun;Chen, Shanghong;He, Mingjiang;Zeng, Xiangzhong;Chen, Kun;Yu, Hua;Shangguan, Yuxian;Dong, Yujiao;Qin, Yusheng;Liu, Zhigang;Chen, Fanjun;Lu, Tingqi;Liu, Yonghong;Qin, Yusheng
关键词:maize; root system architecture; nitrogen rates; cultivars; yield
-
Methane and nitrous oxide emissions from a ratoon paddy field in Sichuan Province, China
作者:Song, Kaifu;Zhang, Guangbin;Yu, Haiyang;Xu, Hua;Ma, Jing;Song, Kaifu;Yu, Haiyang;Lv, Shihua
关键词:global warming potential; greenhouse gas emissions; methane; nitrous oxide; ratoon rice; yield; yield‐ scaled GWP
-
Evaluation of methane and nitrous oxide emissions in a three-year case study on single rice and ratoon rice paddy fields
作者:Song, Kaifu;Zhang, Guangbin;Yu, Haiyang;Huang, Qiong;Zhu, Xiaoli;Wang, Tianyu;Xu, Hua;Ma, Jing;Song, Kaifu;Yu, Haiyang;Huang, Qiong;Zhu, Xiaoli;Wang, Tianyu;Lv, Shihua
关键词:Methane; Nitrous oxide; Ratoon rice; Global warming potential; Net ecosystem economic budget; Plastic film mulching
-
Optimization of nitrogen fertilizer rate under integrated rice management in a hilly area of Southwest China
作者:Dong, Yujiao;Yuan, Jiang;Lu, Shihua;Zhang, Guangbin;Ma, Jing;Hilario, Padilla;Liu, Xuejun
关键词:N input; N output; N-15 recovery efficiency; N surplus; N use efficiency; plastic mulch; soil surface N budget
-
Integrated rice management simultaneously improves rice yield and nitrogen use efficiency in various paddy fields
作者:Dong, Yujiao;Liu, Xuejun;Ren, Tusheng;Dong, Yujiao;Yuan, Jiang;Lu, Shihua;Zeng, Fanwen;Zhang, Guangbin;Chen, Yuanxue;Hilario, Padilla
关键词:grain yield; hilly area; nitrogen uptake; paddy field type; plastic mulch; traditional rice management
-
Labile soil organic matter fractions as influenced by non-flooded mulching cultivation and cropping season in rice-wheat rotation
作者:Fan, Mingsheng;Li, Xiaolin;Lu, Shihua;Tian, Jing;Kuzyakov, Yakov
关键词:Soil organic matter;Labile soil organic matter fractions;Non-flooded mulching cultivation;Traditional flooding