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鲁麦２１号由于分蘖成穗率高、品质好、抗逆性强、适宜稻茬麦种植，面积逐年扩大，成为临沂市河东区的主要推广品种。本研究从稻茬麦每６６６－７ｍ２产量超过５５０ｋｇ出发，利用五因子二次回归设计组合，探讨主要栽培因子与产量的关系，寻找高产最佳技术组合。１ 材料与方
Due to the high tillering rate, good quality and strong resistance, Lumai 21 is suitable for rice crop planting and its area has been expanded year by year. It has become the main popularized variety in Hedong District of Linyi City. In this study, starting from the output of more than 550kg per 666-7m2 of rice stubble, the combination of five factors and quadratic regression design was used to explore the relationship between the main cultivation factors and yield and find the best combination of high yield technology. 1 material and side