云南农业大学学报（自然科学）2017，Vol.32Issue(3)：421-426,6.DOI:10.16211/j.issn.1004-390X(n).2017.03.005
“多肽保”对烟田土壤中木霉菌的影响
The Effect of Bio-agent Duotaibao on Trichoderma Enrichment in Tobabcco Field Soil
摘要
Abstract
[Purpose] In present research,the field soil treated with different dosages of Duotaibao during tobacco growth period was sampled for this bio-agent'effect on Trichoderma spp.population dynamic evaluation.[Methods] By using Trichoderma selective medium and the dilution plate method,the Trichoderma spp.colony was counted at dilution ratio 1.0 × 10-2 and 1.0 × 10-3 levels,and eventually the effect of Duotaibao on Trichoderma population dynamic was evaluated.[Results] All application of different dosage had a positive effect on the growth of Trichoderma spp.,and the treatment D (300 g/m2) obtained the highest number of Trichoderma spp.72.2 × 102 and 72.4 × 103 with the increase rates of 77.8％ and 126.25％,compared with CK.Further analysis showed that Trichoderma spp.population showed greatly seasonal fluctuation.E.g it achieved the highest number of Trichoderma colony with 98 × 103 and 95 × 103 in July and August,respectively,however,it only got 49 × 103 and 53 × 103 in May and September.[Conclusion] Based on our research work,it is reasonable that application of Duotaibao with dosage of 300 g/m2 is optimal for Trichoderma spp.population enhancement.关键词
“多肽保”/烟田土壤/生物防治/木霉菌Key words
Duotaibao/tobacco field soil/bio-control/Trichoderma spp.分类
农业科技引用本文复制引用
何永宏,曾乙心,李桂映,刘月静,秦西云,陈兴全,谢勇,陈穗云..“多肽保”对烟田土壤中木霉菌的影响[J].云南农业大学学报（自然科学）,2017,32(3):421-426,6.基金项目
中国烟草总公司云南省公司资助项目(2015YN07). （2015YN07）
