| Evaluating effects of regulated deficit irrigation to growth and yield of spring maize in northeast China based on RAIGA-PPC model |
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| DOI：10.7606/j.issn.1000-7601.2014.06.004 |
| Key Words: maize regulated deficit irrigation water stress growing index yield, RAIGA-PPC |
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| Abstract: |
| In order to research the comprehensive effects of regulated deficit irrigation to growth and yield of spring maize in northeast China, under the mobile awning, taking the spring maize of northeast China as experiment material, the effect of moderate regulated deficit treatment to the dry weight and water consumption in seedling stage, jointing stage and heading stage of maize was analyzed by using the cylinder cultivation experiment method. Also carried out the projection pursuit establishing model and comprehensive evaluation by adopted the real coded accelerating immune genetic algorithm. The result showed that: The water deficit in seedling stage, the maize will be had strong adaptability to drought, so in seedling stage, the water deficit can be moderated with 50% to 60% of field capacity, and the scheme of water deficit in seedling stage will be better than other schemes according to the model evaluation. |
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