3种微生物菌肥对烤烟生长及病害控制的效果

Effects of Three Kinds of Microbial Fertilizer on Growth and Disease Control of Flue-Cured Tobacco

摘要: 为探索3种微生物菌肥对烤烟生长及病害防控效果，开展田间随机区组试验。结果表明：处理A可显著提高团棵期腰叶长，旺长期株高和腰叶长，封顶期茎围和腰叶长；处理C可显著提高团棵期株高和腰叶长，旺长期株高，封顶期茎围、腰叶长和腰叶宽；3个处理20 d内均未出现黑胫病和花叶病病株；移栽40 d和60 d后，对黑胫病的防效分别在63.64%~70.17%和58.80%~64.02%之间，对花叶病的防效分别在80.80%~90.18%和53.35%~59.38%之间；封顶后，处理A对赤星病的防效最好，达60.07%。处理C促生效果最好，处理A次之；处理A防病效果最好，处理C次之。

Abstract: In order to test and verify the effects of three kinds of microbial fertilizer on the growth and disease control of flue-cured tobacco, field randomized block experiments were carried out. The results showed that treatment A could significantly increase the length of waist leaves at the rosette stage, plant height and waist leaf length in the vigorous growing stage, and stem circumference and waist leaf length in the capping stage. Treatment C could significantly increase plant height and waist leaf length at the rosette stage, plant height at the peak stage, stem circumference, waist leaf length, and waist leaf width at the capping stage. Black shank and mosaic disease were not found in the three treatments within 20 days. After 40 and 60 days of transplanting, the control effect against black shank was 63.64%~70.17% and 58.80%~64.02% respectively; and the control effect against mosaic was 80.80%~90.18% and 53.35%~59.38%, respectively. After capping, treatment A had the best control effect on brown spot disease; the control effect was 60.07%. Treatment C had the best growth-promoting effects, and treatment A was second. Treatment A had the best disease prevention effects, followed by treatment C.