Comprehensive Evaluation on the Yield, Quality, and Water-Nitrogen Use Efficiency of Mountain Apple Under Surge-Root Irrigation in the Loess Plateau Based on the Improved TOPSIS Method

作者：Kun Hao, Liangjun Fei, Lihua Liu, Feilong Jie, Youliang Peng, Xiaogang Liu, Sher Aslam Khan, Dong Wang, Xiukang Wang · 发表于：Frontiers in Plant Science · 年份：2022 · DOI：10.3389/fpls.2022.853546 · 被引用次数：42 · 研究领域：Irrigation Practices and Water Management、Plant Physiology and Cultivation Studies、Horticultural and Viticultural Research

The purpose of this study was to know the controlling effects of water and nitrogen coupling on the yield, quality, and water-nitrogen utilization effectiveness of mountain apples under surge-root irrigation in the Loess Plateau. In order to optimize the water and nitrogen irrigation systems of superior quality and high yield, 7 years was selected for the mountain apple test material. The trial was designed with four tiers of irrigation, i.e., full irrigation (FI: 85–100% θ f , where θ f is the field capacity), light deficit irrigation (DI L : 70–85% θ f ), moderate deficit irrigation (DI M : 55–70% θ f ), and severe deficit irrigation (DI S : 40–55% θ f ) and three tiers of nitrogen, i.e., high nitrogen (N H : 600 kg ha –1 ), medium nitrogen (N M : 400 kg ha –1 ), and low nitrogen (N L : 200 kg ha –1 ). The subjective weight attained by the analytic hierarchy methods and the objective weight achieved by the enhanced coefficient of variation method were examined to find the comprehensive weight based on the notion of game hypothesis. Then, the weighted technique for order of preference by similarity to the ideal solution (TOPSIS) process was utilized to comprehensively assess the yield, quality, and water-nitrogen use efficiency of the apples, and a binary quadratic regression model was created between the comprehensive evaluation index and water-nitrogen inputs. The results showed that the effects of irrigation and nitrogen levels on the fruit yield, irrigation water use eff...