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测定了施加小麦秆糠、玉米秆糠后植烟土壤中细菌、霉菌、放线菌、解磷菌、解钾菌、硝化细菌和反硝化细菌 7类菌群的分布及数量 ;应用生物统计分析法比较了施加不同秸秆对烤烟试验田土壤微生物结构和数量的影响。结果表明 ,施加 750 0kg/hm2 的小麦秆糠、90 0 0kg/hm2 的玉米秆糠和 150 0 0kg/hm2 的玉米秆糠都能显著或极显著地增加 2 0～ 4 0cm耕作层中微生物的数量
The distribution and quantity of bacteria, mold, actinomycetes, phosphate-solubilizing bacteria, potassium-solubilizing bacteria, nitrifying bacteria and denitrifying bacteria in tobacco-growing soil after application of wheat straw bran and corn stalk were determined. The biostatistical analysis The effects of applying different straw on soil microbial structure and quantity in flue-cured tobacco field were compared. The results showed that application of 750 kg / hm2 of wheat straw bran, 90 0 0 kg / hm2 of corn stalk bran and 150 0 0 kg / hm2 of corn stalk bran significantly or very significantly increase the 20 0 ~ 40 cm of tillage layers of microorganisms Quantity