收稿日期: 2010-03-05
修回日期: 2010-03-31
网络出版日期: 2010-09-15
基金资助
辽宁省博士启动基金(20071014)、辽宁省重大项目(2008212003)和辽宁省基金(20092079)资助
Water requirement regulation and irrigation forecast of corn in western Liaoning
Received date: 2010-03-05
Revised date: 2010-03-31
Online published: 2010-09-15
亢振军 , 尹光华 , 刘作新 , 张法升 , 沈业杰 , 佟娜 , 谷健 . 辽西玉米需水规律及灌溉预报研究[J]. 中国科学院大学学报, 2010 , 27(5) : 614 -620 . DOI: 10.7523/j.issn.2095-6134.2010.5.006
The corn water requirement and irrigation forecast in semi-arid area in western Liaoning were studied by using CROPWAT model, based on corn growth parameters and agro-meteorological data from 2004 to 2008. The results indicate that the trend of corn water requirement was in a normal distribution in the growth period and the annual water demand was between 572 and 645mm. The water requirements in the seedling, jointing, tasselling, and filling stages were 11.1%, 30.2%, 19.8% and 38.9% of the total water requirement, respectively. The corn irrigation requirement curves were of the parabolic type, the medium-term platform type, and double-peak type. The supplementary irrigation was fulfilled mainly in July, August and September.
Key words： corn; water requirement regulation; irrigation forecast; CROPWAT
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