不同种类生物炭对植烟土壤微生物及根茎病害发生的影响

李成江,李大肥,周桂夙,许龙,徐天养,赵正雄

Effects of different types of biochar on soil microorganism and rhizome diseases occurrence of flue-cured tobacco

Cheng-Jiang LI,Da-Fei LI,Gui-Su ZHOU,Long XU,Tian-Yang XU,Zheng-Xiong ZHAO

表4 生物质炭对烤烟主要病害的影响

Table 4 Effects of biochar on main diseases of flue-cured tobacco

处理 Treatment 项目 Item 旺长期 Vigorous growing stage 采烤前 Mature stage 青枯病 Granvillel wilt 黑胫病 Tobacco black shank 青枯病 Granville wilt 黑胫病 Tobacco black shank 发病率 Incidence rate (%) CK 3.37 a 1.76 a 4.67 a 2.63 a RB 2.76 b 1.48 b 3.53 b 2.24 b WB 2.55 c 1.34 c 3.50 b 2.20 b 病情指数 Disease index (%) CK 2.34 a 1.34 a 4.36 a 2.34 a RB 1.78 b 1.26 a 2.98 b 1.52 b WB 1.56 c 1.14 c 2.73 b 1.49 b