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在高肥力条件下，不同预留行宽度对冬小麦边际效应影响显著。边１行增产幅度随预留行宽度增加而提高，但超过一定宽度后，增产幅度减小；预留行宽度增加，边２行增产不稳定；边２行比内行增产３．２８％～１２．０１％，平均增产６．８４％。不同处理的内行产量差异不显著，预留行宽度增加，内行平均增产仅为５％。不同处理小区产量差异显著，随预留行宽度增加，小区产量递增。边行增产原因是穗数、穗粒数显著提高，同时千粒重明显提高。百农６４适宜间套作预留行宽度为不低于８０ｃｍ。
Under high fertility conditions, the width of different reserved lines had a significant effect on the marginal effect of winter wheat. The rate of increase in line 1 and line 1 increases with the increase of reserve line width, but the rate of increase in output decreases after a certain width is exceeded. The increase in reserve line width increases the yield in line 2 and line 2; the output in line 2 and line 3 increases 3.28% to 12 .01%, an average increase of 6.84%. The difference between the different production lines was not significant, while the width of reserved lines increased. The average growth rate of insiders was only 5%. The yield of different treatment plots is significant, with the increase of reserve width, the yield of plots increases. The reason for the increased yield of the border row is the number of spikelets and the number of grains per spike increased significantly, meanwhile the grain weight of thousand grains was obviously increased. Bainong 64 suitable for intercropping reserve line width of not less than 80cm.