| Study on the water consumption characteristics and water production efficiency of summer corn under film hole irrigation |
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| DOI：10.7606/j.issn.1000-7601.2014.05.002 |
| Key Words: film hole irrigation summer corn water consumption characteristics water production efficiency |
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| Abstract: |
| Through the field small plots experiment, has studied the impacts of irrigating frequency and irrigating volume to the water consumption, yield and water production efficiency of summer corn under film hole irrigation. The results showed that: The jointing stage and heading stage were the key stage for the corn water requirement. The water consumption was increasing with added irrigating volume under the same irrigating frequency. The water consumption intensity was added with increase of the irrigating frequency at the same irrigating quota. The corn yield with total water consumption showed a good parabolic relation. The corn water requirements with better yield and high water production efficiency were 2 546 m3·hm-2 to 3 410 m3·hm-2 by the film hole irrigation. Compared with the film hole irrigation to the common border irrigation, the water consumption was decreased 6.2%, water production efficiency was increased 23.3%, and yield was increased 15.9% under same irrigation condition. |