“多肽保”对烟田土壤中木霉菌的影响

发布时间：2018-05-10 17:09

本文选题：“多肽保” + 烟田土壤　；参考：《云南农业大学学报(自然科学)》2017年03期

【摘要】：【目的】研究"多肽保"不同施用量对烟田土壤中木霉菌(Trichoderma spp.)的影响。【方法】利用木霉菌选择性培养基和稀释平板培养计数法,在1.0×10~(-2)和1.0×10~(-3)稀释倍数下对取自田间烤烟生长期间土样中的木霉菌进行分离和计数。【结果】施用"多肽保"对土壤中木霉菌的生长有利,其中施用300 g/m~2的处理木霉菌数量最高,分别为72.2× 10~2和72.4×10~3,与对照相比分别增加了77.8%和126.25%。进一步的分析发现:施用不同剂量的"多肽保"之后,各月间木霉菌的数量有波动,其中7月和8月最高,分别达到98×10~3和95×10~3,而5月和9月最低,仅有49×10~3和53×10~3。【结论】施用300 g/m~2"多肽保"对改善烟田土壤中木霉菌数量的影响最显著。
[Abstract]:[objective] to study the effect of different amount of polypeptide protection on Trichoderma spp.of Trichoderma in tobacco field soil. Methods Trichoderma selective medium and dilution plate culture counting method were used. Trichoderma isolated and counted from soil samples taken from field flue-cured tobacco at dilution times of 1.0 脳 10 ~ (-2) and 1.0 脳 10 ~ (-3). [results] the application of "polypeptide conservation" was beneficial to the growth of Trichoderma in soil, and the amount of Trichoderma treated with 300 g/m~2 treatment was the highest. It was 72.2 脳 10 ~ (-2) and 72.4 脳 10 ~ (-3), which increased 77.8% and 126.25%, respectively, compared with the control. Further analysis showed that the amount of Trichoderma fluctuated during each month after the application of different doses of "polypeptide conservation", and reached the highest in July and August, reaching 98 脳 10 ~ (-3) and 95 脳 10 ~ (-3) respectively, but lowest in May and September, respectively. Only 49 脳 10 ~ (-3) and 53 脳 10 ~ (10) ~ (3). [conclusion] the application of 300 g/m~2 "polypeptide" had the most significant effect on the improvement of Trichoderma numbers in tobacco field soil.
【作者单位】：云南农业大学植物保护学院;云南农业大学烟草学院;云南省烟草公司文山州公司;云南省烟草农业科学研究院;云南大学生命科学学院;
【基金】：中国烟草总公司云南省公司资助项目(2015YN07)
【分类号】：S476.1

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