Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China.
Rice cultivation has been challenged by increasing food demand and water scarcity. We examined the responses of water use, grain yield, and water productivity to various modes of field water managements in Chinese double rice systems. Four treatments were studied in a long-term field experiment (199...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2017-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5720698?pdf=render |
| _version_ | 1818898055079919616 |
|---|---|
| author | Xiao Hong Wu Wei Wang Chun Mei Yin Hai Jun Hou Ke Jun Xie Xiao Li Xie |
| author_facet | Xiao Hong Wu Wei Wang Chun Mei Yin Hai Jun Hou Ke Jun Xie Xiao Li Xie |
| author_sort | Xiao Hong Wu |
| collection | DOAJ |
| description | Rice cultivation has been challenged by increasing food demand and water scarcity. We examined the responses of water use, grain yield, and water productivity to various modes of field water managements in Chinese double rice systems. Four treatments were studied in a long-term field experiment (1998-2015): continuous flooding (CF), flooding-midseason drying-flooding (F-D-F), flooding-midseason drying-intermittent irrigation without obvious standing water (F-D-S), and flooding-rain-fed (F-RF). The average precipitation was 483 mm in early-rice season and 397 mm in late-rice season. The irrigated water for CF, F-D-F, F-D-S, and F-RF, respectively, was 263, 340, 279, and 170 mm in early-rice season, and 484, 528, 422, and 206 mm in late-rice season. Grain yield for CF, F-D-F, F-D-S, and F-RF, respectively, was 4,722, 4,597, 4,479, and 4,232 kgha-1 in early-rice season, and 5,420, 5,402, 5,366, and 4,498 kgha-1 in late-rice season. Compared with CF, F-D-F consumed more irrigated water, which still decreased grain yield, leading to a decrease in water productivity by 25% in early-rice season and by 8% in late-rice season. Compared with F-D-F, F-D-S saved much irrigated water with a small yield reduction, leading to an increase in water productivity by 22% in early-rice season and by 26% in late-rice season. The results indicate that CF is best for early-rice and FDS is best for late-rice in terms of grain yield and water productivity. |
| first_indexed | 2024-12-19T19:25:59Z |
| format | Article |
| id | doaj.art-b612b975b4664c4cbcb432b9f7a3cbd8 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-19T19:25:59Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-b612b975b4664c4cbcb432b9f7a3cbd82022-12-21T20:08:47ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-011212e018928010.1371/journal.pone.0189280Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China.Xiao Hong WuWei WangChun Mei YinHai Jun HouKe Jun XieXiao Li XieRice cultivation has been challenged by increasing food demand and water scarcity. We examined the responses of water use, grain yield, and water productivity to various modes of field water managements in Chinese double rice systems. Four treatments were studied in a long-term field experiment (1998-2015): continuous flooding (CF), flooding-midseason drying-flooding (F-D-F), flooding-midseason drying-intermittent irrigation without obvious standing water (F-D-S), and flooding-rain-fed (F-RF). The average precipitation was 483 mm in early-rice season and 397 mm in late-rice season. The irrigated water for CF, F-D-F, F-D-S, and F-RF, respectively, was 263, 340, 279, and 170 mm in early-rice season, and 484, 528, 422, and 206 mm in late-rice season. Grain yield for CF, F-D-F, F-D-S, and F-RF, respectively, was 4,722, 4,597, 4,479, and 4,232 kgha-1 in early-rice season, and 5,420, 5,402, 5,366, and 4,498 kgha-1 in late-rice season. Compared with CF, F-D-F consumed more irrigated water, which still decreased grain yield, leading to a decrease in water productivity by 25% in early-rice season and by 8% in late-rice season. Compared with F-D-F, F-D-S saved much irrigated water with a small yield reduction, leading to an increase in water productivity by 22% in early-rice season and by 26% in late-rice season. The results indicate that CF is best for early-rice and FDS is best for late-rice in terms of grain yield and water productivity.http://europepmc.org/articles/PMC5720698?pdf=render |
| spellingShingle | Xiao Hong Wu Wei Wang Chun Mei Yin Hai Jun Hou Ke Jun Xie Xiao Li Xie Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China. PLoS ONE |
| title | Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China. |
| title_full | Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China. |
| title_fullStr | Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China. |
| title_full_unstemmed | Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China. |
| title_short | Water consumption, grain yield, and water productivity in response to field water management in double rice systems in China. |
| title_sort | water consumption grain yield and water productivity in response to field water management in double rice systems in china |
| url | http://europepmc.org/articles/PMC5720698?pdf=render |
| work_keys_str_mv | AT xiaohongwu waterconsumptiongrainyieldandwaterproductivityinresponsetofieldwatermanagementindoublericesystemsinchina AT weiwang waterconsumptiongrainyieldandwaterproductivityinresponsetofieldwatermanagementindoublericesystemsinchina AT chunmeiyin waterconsumptiongrainyieldandwaterproductivityinresponsetofieldwatermanagementindoublericesystemsinchina AT haijunhou waterconsumptiongrainyieldandwaterproductivityinresponsetofieldwatermanagementindoublericesystemsinchina AT kejunxie waterconsumptiongrainyieldandwaterproductivityinresponsetofieldwatermanagementindoublericesystemsinchina AT xiaolixie waterconsumptiongrainyieldandwaterproductivityinresponsetofieldwatermanagementindoublericesystemsinchina |