摘要
为探明渭河平原地区不同灌水量与施氮量对玉米生长发育、产量、品质和效率的影响,通过玉米盆栽试验,灌水量设置水分梯度2个(灌水上限为田间持水量的50%、80%,分别用W0、W1表示),氮肥梯度5个(0、0.1、0.3、0.5、0.7 g/kg,分别用N0、N1、N2、N3、N4表示),共10个处理。结果表明,水氮耦合对玉米各项指标存在不同程度影响,使用主观AHP层次分析法和客观熵权法相结合,利用博弈论组合赋权法确定15个指标的最终权重,其中单株产量权重最大,达到0.133,其次为粗蛋白质含量和氮素偏肥生产力,权重分别达到0.114和0.105。利用TOPSIS综合评价法对各处理综合评价,最终结果显示W1N2处理为最佳水氮施用方案。因此推荐土壤含水量为80%田间持水量、施氮量0.3 g/kg为该地区玉米最佳灌水施肥模式。
In order to explore the effects of different irrigation and nitrogen application levels on the growth and development,yield,quality and efficiency of corn in the Weihe Plain,through corn pot experiments,the irrigation amount was set at 2 moisture gradients(50%and 80%of the field water capacity,represented by W0 and W1 respectively),5 nitrogen application levels(0 g/kg,0.1 g/kg,0.3 g/kg,0.5 g/kg,0.7 g/kg,represented by N0,N1,N2,N3 and N4 respectively),a total of 10 treatments.The results show that water-nitrogen coupling significantly affects various corn indicators.The subjective AHP analytic hierarchy process and the objective entropy weight method are combined,and the game theory combination weighting method was used to determine the final weight of 15 indicators,among which the weight of individual plant yield is the largest,reaching 0.1330,followed by crude protein content and nitrogen partial fertilizer productivity,with respective weights of 0.1136 and 0.1053.The TOPSIS method was used to evaluate each treatment comprehensively,and the final results showed that the W1N2 treatment was the best water and nitrogen application plan.Therefore,a soil moisture content of 80%of the field water capacity and a nitrogen application rate of 0.3 g/kg are recommended.
作者
刘禹晗
朱德兰
刘泽
柳昌新
Nazarova Sayyora
Khudayberdi Nazarov
LIU Yu-han;ZHU De-lan;LIU Ze;LIU Chang-xin;Sayyora Nazarova;Nazarov Khudayberdi(College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling 712100,Shaanxi Province,China;Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid,Ministry of Education,Northwest A&F University,Yangling 712100,Shaanxi Province,China;Tashkent State Agrarian University,Tashkent 100140,Uzbekistan 4.Tashkent State University of Economics,Tashkent 100140,Uzbekistan)
出处
《节水灌溉》
北大核心
2024年第11期1-9,共9页
Water Saving Irrigation
基金
国家重点研发计划项目(2022YFD1900400-4)
国家重点研发计划(2021YFE0103000)。
关键词
玉米
灌水量
施氮量
产量
品质
TOPSIS综合评价
水肥决策
corn
irrigation amount
nitrogen application amount
yield
quality
TOPSIS comprehensive evaluation
water and fertilizer decision-making
