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近年来,我省大力推广了玉米间花生、玉米间薯类、玉米间大豆等以玉米为主的条带间作方式。这些间作方式有明显的增产效益,然而,这些条带间作方式较之原有的净作方式增加了种间关系的异质性,而高矮秆作物的合理搭配下也明显地改变了田间的小气候。这些都直接影响到病虫的生态条件:可能对某些病虫是抑制性的,但对另一些病虫又可能是促进性的。为明确当前大力推广的旱作间套形式对病虫发生的影响,1984～1985我们作了两年的观察。
In recent years, our province has vigorously promoted the maize inter-cropping between corn and peanut, corn and potato, and corn among others. However, the intercropping patterns of these bands increased the heterogeneity of interspecies compared with the original net-cropping pattern. However, the reasonable collocation of high-stalked mulch also significantly changed the microclimate in the field . All these have a direct impact on the ecological conditions of the pests: they may be inhibitory for some pests but may be facilitative to others. In order to clarify the impact of the intercropping of dryland sets on pests and diseases, we made a two-year observation from 1984 to 1985.