蛆粪有机肥对玉米致病真菌及线虫的活性抑制研究

Inhibition Activity of Maggot Frass Organic Fertilizer on Corn Pathogenic Fungi and Nematodes

[目的]探讨蛆粪有机肥对玉米病害的防治效果。[方法]研究了不同浓度的蛆粪有机肥提取液对玉米致病真菌及线虫的抑制活性,并研究了蛆粪有机肥对染尖孢镰刀菌的玉米种子的防治效果。[结果]蛆粪有机肥提取液对5种玉米植物致病菌有较好的抑菌效果,当用添加有蛆粪有机肥浓缩液的培养基进行抑菌试验时,抑菌效果明显,其对线虫的杀伤作用也优于复合肥。玉米种子发芽试验结果表明用蛆粪有机肥提取液浸种,可减少真菌感染,提高发芽率。[结论]蛆粪有机肥对玉米真菌病害及线虫具有较好的防治效果,有望进一步研究与开发。

[Objective] The aim was to discuss the control effects of maggot frass organic fertilizer on corn diseases.[Method] Different concentrates of maggot frass organic fertilizer were prepared to detect their inhibitory activity on corn pathogenic fungi and nematodes,and the control effect of maggot frass organic fertilizer on corn seeds infected by Fusarium oxysporum sp.was studied.[Result] The maggot frass organic fertilizer concentrates had obvious inhibitory effects on corn plant pathogens,and their lethal effects on nematodes were higher than that of the compound fertilizer.After corn seeds were soaked with the concentrates of maggot frass organic fertilizers,the concentrates of maggot frass organic fertilizer could reduce the infection of pathogenic fungi and improve the germination rate of the seeds.[Conclusion] The maggot frass organic fertilizer has good control effects to corn pathogenic fungi and nematodes,so it is hopeful for further research and development.