| Cite this article: | 滕安国,王泽义.基于博弈论组合确权的模糊物元模型决策膜下滴灌向日葵调亏模式[J].灌溉排水学报,0,():-. |
| TENG Anguo,WANG Zeyi.基于博弈论组合确权的模糊物元模型决策膜下滴灌向日葵调亏模式[J].灌溉排水学报,0,():-. |
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| Decision-making of Fuzzy Matter Element Model based on the Combined Weight of Game Theory for Sunflower in Deficit Irrigation Scheme |
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TENG Anguo1, WANG Zeyi2
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1.Hong’shui River Administration Office,Zhang’ye;2.Gansu Agricultural University
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| Abstract: |
| 【Objective】To optimize the optimal water regulation strategy for edible sunflower under mulched drip irrigation in Hexi Oasis agricultural area, the improved fuzzy matter-element model was used to compare and evaluate the effects of different water deficit modes on sunflower yield, quality and water productivity. 【Method】 Water deficit was applied in seedling and maturity stage, and sufficient water supply was maintained in other stages. A total of 6 treatments were set up at 3 levels of mild (75%-65% FC, FC was the field water capacity), moderate (65%-55% FC) and severe (55%-45% FC), and a control treatment with sufficient water supply (85%-75% FC) at each growth stage was set up, and each treatment was repeated for 3 times, using a completely random block experiment arrangement. 【Result】 The results showed that: the effect of water deficit on edible sunflower was different. A multi-level evaluation system was established for sunflower morphology, yield, quality and water resource utilization, and the weight of plant height was the highest (0.141) in 2019, crude protein content was the lowest (0.083), crude fat content was the highest (0.162) and water use efficiency was the lowest (0.065) in 2020. According to the comprehensive evaluation based on fuzzy matter-element model, the Euclidean degree was the best under mild or moderate treatment at seedling stage and mild treatment at maturity stage.【Conclusion】When water supply is abundant, the grain yield can be higher with mild regulated deficit irrigation (RDI) at seedling stage and mild RDI at maturity stage. However, when water source is insufficient, moderate RDI at seedling stage and mild RDI at maturity stage is a better water-saving irrigation mode. At the same time, the coupling model has certain application value for the evaluation of water-saving irrigation benefit of characteristic cash crops in Hexi Oasis, and the study also provides theoretical basis and scientific support for drought-resistant water-saving irrigation of edible sunflower in oasis. |
| Key words: sunflower; water regulation deficit; game theory; fuzzy matter element; evaluation |
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