Application of entropy weight based fuzzy analytic hierarchy process in water and fertilizer coupling effect evaluation of winter strawberry under trace quantity irrigation
XING Liwen 1,2, CUI Ningbo2*, DONG Juan 3, ZHAO Lu2, LIU Shuangmei4
1. Shanxi Institute of Water Conservancy and Hydropower Sciences, Taiyuan, Shanxi 030002, China; 2. College of Water Conservancy and Hydropower, Sichuan University, Chengdu, Sichuan 610065, China; 3. Shanxi Institute of Biology, Taiyuan, Shanxi 030006, China; 4. Sichuan Institute of Water Conservancy Sciences, Chengdu, Sichuan 610065, China
Abstract：A regression model of comprehensive indices evaluating yield, quality and water and fertilizer utilization efficiency of winter strawberry under trace quantity irrigation condition was established in terms of water and fertilizer doses by using fuzzy analytic hierarchy process(FAHP)based on entropy weight method. The water and fertilizer coupling effect on the yield, quality and water and fertilizer utilization efficiency was evaluated, and the optimal doses of water and fertilizer were determined. The results showed that the maximum comprehensive evaluating index was achieved with the following fertilizer doses: 721.96 kg/hm2(N), 360.98 kg/hm2(P2O5)and 721.96 kg/hm2(K2O)with 60.41% lower and 90% upper irrigation water limits. The corresponding yield, utilization efficiency of irrigation water and fertilizer utilization efficiency were 27 008.69 kg/hm2, 84.48 kg/m3 and 15.60 kg/kg, respectively. Compared with conventional drip irrigation mode, the optimized trace water and fertilizer amounts irrigation water and fertilizer management mode can increase the yield by 27.26%, the irrigation water utilization efficiency by 22.27% and the fertilizer utilization efficiency by 26.35%. The prediction model produced in this paper has a high reliability, and the optimized water and fertilizer doses predicted by the model can provide guidance on greenhouse strawberry production in a certain degree.
邢立文,,崔宁博*,董娟,赵璐,刘双美. 基于熵权-模糊层次分析法的痕灌草莓水肥效应评价[J]. 排灌机械工程学报, 2019, 37(9): 815-821.
XING Liwen ,, CUI Ningbo *, DONG Juan , ZHAO Lu, LIU Shuangmei. Application of entropy weight based fuzzy analytic hierarchy process in water and fertilizer coupling effect evaluation of winter strawberry under trace quantity irrigation. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(9): 815-821.
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