小春作物多样性控制病虫害试验研究初探

 为探索小春作物多样性对病虫害的持续控制规律及增产增收效果,2000～2001年在云南玉溪市峨山、澄江和红塔区共设6组小春作物多样性混种大区同田对比试验及18.7 hm²典型大田示范进行调查分析研究。结果表明,麦类与蚕豆混种或油菜与蚕豆混种不仅能有效地持续控制、减少病虫为害,减少农药、化肥施用,保护农田生态环境,而且能增产、增收;此外,混种引起了油菜、麦类及蚕豆主要经济性状和蚕豆根瘤生物量不同程度的变化,预示出小春作物油//豆或麦//豆间存在的相生相克规律,初步搭配的几个优化混种组合可供生产应用。

Study on the Pest and Disease Control of Vernal Crop Diversity

To study the effect of increased production and the rule of the pest and disease continual control. There are 6 field trials of vernal crop diversity in er shan, Chengjiang, Hongta district, and 18.7 hm² typical field demonstrations investigated. The results show that mixture of wheat and fababean or reap and fababean has not only continuously controlled and relieved the pest and disease, decreased the quantity of chemicals, fertilizers, protected the agroecosystem, but also increased production. Moreover, mixture has caused the economic traits of rape, wheat and fababean nodule changed. These will demonstrate that the harmonious relationships between rape and fababean, wheat and fababean. Several mixture groups were be used in large scale production.