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本文通过对油菜品种试验的边际效应进行了初步研究，其研究结果表明：不同油菜品种小区边行植株的产量、单株有效角果数、单株生产力、单株有效分枝数、千粒重、每角实粒数等均有明显优势。边行优势：产量平均达24．42％、单株有效角果数平均达33．81％、单株生产力平均达32．00％、单株有效分枝数平均达9．46％、每角实粒数平均达5．56％、千粒重平均达3．44％。边行优势具有显著的品种差异性，这种差异性使品种在试验的准确度方面受到一定影响，以全小区计产和剔涂边际效应后计产的品种产量结果不同，且悬殊较大。因此边际效应在试验过程中应予以消除。
In this paper, the marginal effects of rapeseed trials were studied. The results showed that: the yield of side-rowed plants, number of effective pods per plant, productivity per plant, number of effective branches per plant, Angle real grain, etc. have obvious advantages. Advantages of side-line: the average output reached 24.42%, the average number of effective pods per plant reached 33.81%, the average productivity per plant reached 32.00%, and the average number of effective branches per plant reached 9.46% The average number of real grains reached 5.56% and the average grain weight reached 3.44%. The advantages of side row have significant variety differences. This difference makes the varieties have a certain impact on the accuracy of the test. The yield of different varieties is different after the whole area is calculated and marginalized. Therefore, the marginal effect in the test process should be eliminated.