Water and Radiation Use Efficiency of Japonica Rice with Different Irrigation Methods in Semi-humid Area of China

Limited freshwater resources restricted the yield of rice in the semi-humid area of Heilongjiang Province, China. To identify suitable irrigation methods for rice, the irrigation experiment was carried out at Qing’an Irrigation Experimental Center in 2018. The aim was to determine impacts between di...

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Bibliographic Details
Published in:Agricultural research (India : Online) 2020-09, Vol.9 (3), p.365-370
Main Authors: Meng, Xiangyan, Zhou, Lingyun, Zhang, Zhongxue, Wu, Qiufeng
Format: Article
Language:English
Subjects:
Biodiversity
Biomedical and Life Sciences
Cell Biology
Control methods
Crop yield
Dry matter
Efficiency
Flood control
Flood irrigation
Freshwater resources
Full-Length Research Article
Humid areas
Identification methods
Irrigation
Irrigation efficiency
Irrigation water
Life Sciences
Photosynthetically active radiation
Plant Biochemistry
Plant Ecology
Plant Genetics and Genomics
Plant Sciences
Radiation
Rice
Water use
Water use efficiency
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Summary:Limited freshwater resources restricted the yield of rice in the semi-humid area of Heilongjiang Province, China. To identify suitable irrigation methods for rice, the irrigation experiment was carried out at Qing’an Irrigation Experimental Center in 2018. The aim was to determine impacts between different irrigation methods and intercepted photosynthetically active radiation, aboveground dry matter, radiation use efficiency and water use efficiency. The comparison of rice irrigation methods showed that control irrigation was an optimal irrigation method. Control irrigation can get maximum water use efficiency and maximum radiation use efficiency in the semi-humid area of Heilongjiang Province. Results showed that control irrigation could be used to increase both water use efficiency and radiation use efficiency compared with wet irrigation and flood irrigation. Results also confirmed that control irrigation intercepted the most photosynthetically active radiation and accumulated the most aboveground dry matter under three irrigation methods. Our results demonstrated that control irrigation produced higher radiation use efficiency and water use efficiency with less irrigation water.
ISSN:2249-720X
2249-7218
DOI:10.1007/s40003-019-00433-7