烟草科技2017，Vol.50Issue(12)：38-43,6.
单株立体覆膜栽培对烟田土壤微生物数量的影响
Effects of three-dimensional film mulching for single plant on microorganism quantity in tobacco-growing soil
摘要
Abstract
To explore the effects of three-dimensional film mulching for single tobacco plant on the microorganism quantity in tobacco rhizospheric and non-rhizospheric soils, field experiments were conducted from 2015 to 2016 in Guiyang County, Hunan Province. Three treatments were set: three-dimensional film mulching for single plant, conventional film mulching and without mulching. The numbers of bacteria, actinomycetes and fungi in soil were determined by the dilution plate counting method. The results showed that after tobacco seedling transplanting, the number of soil microorganisms was different at different sampling times. The number of rhizospheric bacteria was significantly different among the three treatments(p<0.05), with the highest being in three-dimensional film mulching for single plant and the lowest in without mulching. The number of rhizospheric actinomycetes was significantly higher in three-dimensional film mulching for single plant than that in without mulching(p<0.05), and also higher than that in conventional film mulching (however p<0.05 only in 2016). The number of rhizospheric fungi in three-dimensional film mulching for single plant and conventional film mulching was significantly higher than that in without mulching(p<0.05), which was also significantly higher in three-dimensional film mulching for single plant than in conventional film mulching(p<0.05). The ratio of microorganism quantity between rhizospheric and non-rhizospheric soils was higher in three-dimensional film mulching for single plant than in conventional film mulching and without mulching. In conclusion, three-dimensional film mulching for single plant improves the microorganism quantity in tobacco rhizospheric soil.关键词
烟草/单株立体覆膜/根际土壤/非根际土壤/微生物Key words
Tobacco/Three-dimensional film mulching for single plant/Rhizospheric soil/Non-rhizospheric soil/Microorganism分类
农业科技引用本文复制引用
李正鹏,时焦,王海波,韦建玉,方明,徐宜民..单株立体覆膜栽培对烟田土壤微生物数量的影响[J].烟草科技,2017,50(12):38-43,6.基金项目
广西中烟有限责任公司资助项目"单株立体覆膜技术提高烤烟上部烟叶工业可用性研究"(1212014038) （1212014038）
中国农业科学院科技创新工程项目"烟草病虫害防控"(ASTIP-TRIC04). （ASTIP-TRIC04）
