Research on impact of field water regime and rainfall atorage storage depth to irrigation amount in Hanam zone
2010
Nguyen Xuan Dong;Tran Viet On
In operation and management pf irrigation system, the amount of irrigated water strongly depends on field water regime. Using WSI solfware and 24 years data (1986-2008) that are available at the site, the amount of irrigated water of spring and summer crops at the time were defined. Analyzing the correlations between the amount of irrigated water of crops and the dept of rainfall storage as well as applied field water level, the results the amount of crop irrigation were great (if alternative wetting and drying and 100 mm rainfall storage depth were applied). The decreasing the crop irrigated amount were 40% in spring crop and 55% in summer crop
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