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试验采用二次回归通用旋转组合设计方法,对玉米茬后季稻主要技术因子进行了研究。明确了寒优1027的播期、基本苗数、氮肥用量与产量的关系,并获得95％保证率下产量高于7500kg/ha的优化方案。同时经过市郊两年百亩方的验证,达到了预期目标。在详细分析寒优1027品种若干生育指标的基础上,提出了高产栽培措施和诊断指标,对促进市郊粮食生产具有一定参考意义。
In the experiment, the quadratic regression general rotation combination design method was used to study the main technical factors of corn stubble crop. The relationship between sowing date, basic seedling number and nitrogen fertilizer amount and yield of Han You 1027 was clarified, and the optimized scheme with 95% guaranteed rate of yield higher than 7,500 kg / ha was obtained. At the same time after two years of suburb of the suburbs of the verification, to achieve the desired goal. Based on the detailed analysis of some fertility indices of Han You 1027, the measures of high-yielding cultivation and the indicators for diagnosis are put forward, which have some reference significance for promoting food production in the suburbs.