以吉林省西部旱作雨养区的白城洮北区为研究区，结合土壤养分情况、实测数据及实地调研数据，从种粮主体认可性因素、农业可持续性因素两个方面选取有效磷提高率、速效钾提高率、管理难易程度、产投比、单产、作业成本、用工量、有机质提高率、土壤容重9个指标，构建旱作玉米丰产增效技术模式适宜性评价体系，运用投影寻踪模型方法对玉米丰产增效技术模式进行适宜性评价。结果表明，在研究区采用的4种秸秆覆盖模式和4种秸秆旋混模式及两种常规模式中，免耕+秸秆粗略粉碎归行覆盖模式最适宜在研究区进行推广应用。该模式产投比最高，用工最少，作业成本较低，长期秸秆覆盖能够提升土壤养分和改善土壤理化性状。

Taking Taobei District of Baicheng in the west of Jilin province as the research area. Nine indexes about the main body's approval factor and the agricultural sustainability factor were selected to establish the suitability evaluation system of dry land corn cultivation technology model. The data of nine indexes come from the measured data and the survey data, and the method of Projection Pursuit was used. The results of evaluation showed that among the four straw mulching modes, four straw mixing modes and two conventional modes adopted in the study area the "no tillage + straw rough crushing and returning to row mulching" was the most suitable model to be promoted and applicated in the study area. The main advantages of this model were the highest ratio of production to investment, the least labor, the lower operating cost and long-term straw mulching can improve soil nutrients and physical and chemical properties.

S513.047

科技部国家重点研发计划项目（2016YFD0300807-5）、（2018YFD0300204-X）、农业部东北作物生理生态与耕作重点实验室开放基金课题（KLPC2018-01）、吉林省科技引导计划（20190601010FG）、（20190601005FG）、吉林省社会科学基金项目（2019c29）