2022年12月Dec.2022第46卷第6期Vol.46,No.6热带农业工热带农业工程TROPICALAGRICULTURALENCINEERING沿黄灌区玉米间作油菜对土壤水热效应及产量的影响①尚旭民1,2,3)②王凤仁1,2,3)夏博文1,2,3)GalimahGirmaneeTaylor1,2,3)周彦莉1,2,3)逄蕾1,2,3)③（1甘肃省干旱生境作物学重点实验室甘肃兰州730070；2甘肃农业大学农学院甘肃兰州730070；3甘肃农业大学植物生产类实验教学中心甘肃兰州730070）摘要为了研究玉米间作油菜对土壤水热效应和产量的影响，分别测定土壤含水量、土壤温度和产量，计算土壤贮水量、土壤耗水量、水分利用效率、土地当量比和作物竞争力等9个指标。结果发现，玉米间作油菜的经济产量不具间作优势（LERYMC＜1），但生物产量具有间作优势（LERBMC＞1）；玉米和油菜经济产量的种间竞争力表现为玉米＞油菜（AaYMC＞0），生物产量种间竞争力表现为玉米＜油菜（AaBMC＜0）；玉米间作油菜种植模式能够改变土壤温度，间作土壤温度低于单作的土壤温度，玉米的土壤温度高于油菜的土壤温度；玉米间作油菜种植模式比单作玉米和单作油菜的土壤含水量低。关键词玉米；油菜；间作；水热效应；产量中图分类号S513EffectsofCornIntercroppingofMaizewithRapeseedonSoilHydrothermalEffectandYieldsalongtheYellowRiverIrrigationAreaSHANGXumin1,2,3)WANGFengren1,2,3)XIABowen1,2,3)GALIMAHGirmaneeTaylor1,2,3)ZHOUYanli1,2,3)PANGLei1,2,3)(1GansuProvincialKeyLaboratoryofAridlandCropScience,Lanzhou,Gansu730070;2AgronomyCollege,GansuAgriculturalUniversity,LanzhouCity,Gansu730070;3PlantProductionExperimentalTeachingCenter,GansuAgriculturalUniversity,Lanzhou,Gansu730070)AbstractThisstudyisfocusontheinfluenceofcornintercropingwithrapeonsoilhydrothermalandyields.Theexperimentmeasurethesoilmoisture,soiltemperatureandyieldsrespectivelyandcalculate9in‐dicatorssuchassoilwaterstorage,soilwaterconsumption,wateruseefficiency,landequivalentratioandcropcompetitiveness.Theresultshowsthatthegrainyieldsofcornintercroppingwithrapeseedhadnoad‐vantage(LERYMC＜1),butthebiomassyieldhadadvantage(LERBMC＞1).Theinterspecificcompetitivenessofcornandrapeseedgrainyieldiscorn>rape(AaYMC＞0),andtheinterspecificcompetitivenessofbiomassyieldiscorn
