[关键词]
[摘要]
以绿色高效为目标,构建基于 GAP的病虫害防控技术模式,为黄芪主要病虫害科学防控提供参考,提升甘肃省黄芪的生产水平和产业竞争力。构建了生物防控和综合防控 2种黄芪病虫害防控新技术模式,并与常规生产技术模式进行了比较。结果表明, 2023、2024年生物防控与综合防控技术模式下黄芪的出苗提高率、对根腐病和地下害虫的相对防效以及产量均显著高于常规模式。其中,生物防控模式的出苗率提高率分别为 5.12%、6.00%,根腐病防效分别为 66.47%、63.73%,地下害虫相对防效分别为 42.68%、40.82%,增产率分别为 40.18%、48.24%;综合防控模式出苗提高率分别为 4.24%、3.70%,根腐病防效分别为 73.32%、70.18%,地下害虫相对防效分别为 42.68%、33.67%,增产率分别为 34.56%、43.41%。综合防控模式对黄芪白粉病和蚜虫的防效显著高于生物防控模式,但生物防控模式黄芪的增产率显著高于综合防控模式。因此,本研究基于 GAP构建的黄芪病虫害生物防控模式和综合防控模式明显优于当地常规栽培模式,建议在甘肃药材核心产区大面积推广应用。
[Key word]
[Abstract]
Aiming at green and efficient production, this study constructed disease and pest control technology models based onGood Agricultural Practices (GAP) to provide references for the scientific control of major diseases and pests in Astragalus membrana. ceus, thereby enhancing the production level and industrial competitiveness of A. membranaceus in Gansu Province. This paper devel. oped 2 new technology models for A. membranaceus disease and pest control, namely the biological control model and the integrated con.trol model and compared them with conventional production technology models. Results showed that in 2023 and 2024, under both thebiological control and integrated control models, the seedling emergence improvement rate, relative control efficacy against root rot andunderground pests, and yield of A. membranaceus were all significantly higher than those under the conventional model. Specifically, un.der the biological control model, the seedling emergence improvement rates were 5.12% and 6.00%, the control efficacies against root rotwere 66.47% and 63.73%, the relative control efficacies against underground pests were 42.68% and 40.82%, and the yield increaserates were 40.18% and 48.24%, respectively. Under the integrated control model, the seedling emergence improvement rates were4.24% and 3.70%, the control efficacies against root rot were 73.32% and 70.18%, the relative control efficacies against undergroundpests were 42.68% and 33.67%, and the yield increase rates were 34.56% and 43.41%, respectively. The integrated control modelshowed significantly higher control efficacy against powdery mildew and aphids of A. membranaceus than the biological control model,whereas the biological control model achieved a significantly higher yield increase rate than the integrated control model. In conclusion,the biological control model and integrated control model for A. membranaceus diseases and pests, constructed based on GAP in thisstudy, are significantly superior to local conventional cultivation models and are recommended for extensive application and promotionin thecoreproduction areas ofmedicinalherbs inGansu Province.
[中图分类号]
S567.23
[基金项目]
甘肃省农业农村厅科技支撑项目( KJZC-2026-21);定西市揭榜挂帅项目( DX2024AZ23);甘肃省现代农业科技支撑体系区域创新中心重点科技项目( 2023GAAS02)。