玉米自交系32(简称32,以下同)在川东山区中感大、小斑病,一般为3～4级,对产量影响很大,减产20～30%,是32高产的主要限制因素之一。因此,把32的大、小斑病控制在1级左右,使其对产量没有显著影响,就必须采取以防病为中心的“增抗性、减少病菌、抑制病菌侵染、适时用药”的综合栽培管理措施,才能 Maize Inbreds 32 (referred to as 32, hereinafter the same) in the eastern Sichuan mountain area flu big and small spot disease, generally 3 to 4, a great impact on the yield, cut 20 to 30%, 32 is the main limiting factor for high yield one. Therefore, the 32 large and small spot control in the control of about 1, so that no significant impact on the yield, we must take to prevent diseases as the center of “increased resistance, reduce bacteria, inhibit bacterial infection, timely medication ”The integrated cultivation management measures to talent