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春玉米是陕西省渭北旱塬的主要粮食作物,常年播种面积300万亩。近年来,随着地膜的推广应用,单产有了较大提高。但是,在当前生产条件下,从播期、播量及施肥等主要农艺措施入手,探讨地膜玉米的优化栽培技术,则是进一步提高玉米单产、降低成本的重要途径。本试验运用系统工程的原理及方法,建立地膜玉米综合农艺措施的数学模型,选择最佳的农艺措施组合方案,为实现澄城北部旱塬春玉米生产规范化栽培提供科学依据。
Spring maize is the main grain crop in Weibei arid highland in Shaanxi Province with annual sown area of 300 mu. In recent years, with the popularization and application of mulching film, the yield has been greatly improved. However, under the current production conditions, from the sowing date, sowing and fertilization and other major agronomic measures to start to explore the optimum cultivation techniques of plastic mulching, it is an important way to further improve corn yield and reduce costs. In this experiment, the principles and methods of system engineering were used to establish mathematical model of comprehensive agronomic measures of plastic mulching corn and to choose the best combination of agronomic measures to provide scientific basis for the standardized cultivation of spring maize in dry plateau in northern Chengcheng.