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本研究通过对吉林省三大玉米生产区大面积增产与水肥等资源增效的限制因子的权重分析,明确吉林省各区域大面积增产增效的主要限制因子及其解决途径的贡献比率。结果表明,限制吉林省玉米大面积增产与资源增效的因素主要表现为季节性干旱、土壤质量退化和技术集成落后等3个方面,其限制权重分别为19.0%、16.3%和23.2%。针对上述限制因子,通过改进栽培措施、高产土壤定向培肥及配套技术的优化集成,可同时实现吉林省春玉米的大面积高产和水肥增效。
In this study, through the weighted analysis of the limiting factor of large-area stimulation and water-fertilizer stimulation in the three maize production areas in Jilin Province, the main limiting factors of large-area stimulation and efficiency in various regions of Jilin Province and the contributing ratio of their solutions were clarified. The results showed that the limiting factors of large-area corn yield and resource efficiency in Jilin Province were mainly seasonal drought, degraded soil quality and backward integration of technology. The limiting weights were 19.0%, 16.3% and 23.2% respectively. In view of the above-mentioned limiting factors, it is possible to achieve large-area, high-yield and water and fertilizer efficiency of spring maize in Jilin at the same time by improving cultivation measures, optimizing high-yielding soil-oriented fertilization and matching technologies.