垄体走向对打顶期烤烟不同部位微生态环境的影响  

Effects of Ridge-direction on Micro-ecological Environment in Different Positions of Flue-cured Tobacco in Topping Period

作　　者：代先强[1,2] 李沛[1] 王红锋 马浩 胡战军[4] 刘红恩[5] 左万琦 叶协锋[1] 

机构地区：[1]河南农业大学国家烟草栽培生理生化研究基地,国家烟草专卖局烟草行业栽培重点实验室,河南郑州450002 [2]重庆市丰都县烟草公司,重庆408200 [3]重庆烟草科学研究所,重庆400023 [4]红云红河烟草(集团)有限责任公司,云南昆明650000 [5]河南农业大学资源与环境学院,河南郑州450002 [6]重庆市烟草公司彭水分公司,重庆彭水409606

出　　处：《江西农业学报》2012年第4期138-140,148,共4页Acta Agriculturae Jiangxi

基　　金：重庆市烟草公司重点项目"烟田微生态环境与烟叶产质形成关系研究"

摘　　要：通过田间小区试验,研究了不同垄体走向对打顶期烤烟不同部位微生态环境的影响。结果表明:烟株群体内温度和CO2浓度均以东南西北垄处理最高;相对湿度以东南西北垄最低;风速表现为南北垄>东南西北垄>东西垄;光照、垄沟和垄上5 cm和20 cm土层温度在3个垄体走向处理间差异不大;不同垄体走向下温度随烟株高度的增加而降低,相对湿度、CO2浓度、风速和光照各部位表现不一致;垄沟和垄上5 cm和20 cm土层温度峰值出现时间各异。A field experiment was conducted to study the effects of ridge-direction on the micro-ecological environment in the different positions of flue-cured tobacco plant in topping period.The results indicated that the temperature and CO2 concentration in tobacco plant colony of southeast-northwest ridge were the highest,but the relative humidity in tobacco plant colony of this direction of ridge was the lowest.The change trend of wind speed indicated that： south-north ridge southeast-northwest ridge east-west ridge.The light intensity,and 5 cm and 20 cm deep soil temperature of both the ridge and ridge-ditch had little differences among these three ridge-direction treatments.The temperature in tobacco plant colony of different ridge-direction treatments decreased with the increase in tobacco plant height,and the relative humidity,CO2 concentration,wind speed and light intensity had different performances in different positions of tobacco plant,and the peak of 5 cm and 20 cm deep soil temperature of both the ridge and ridge-ditch appeared at different time.

关 键 词：垄体走向 烤烟 微生态环境 打顶期 

分 类 号：S572.044[农业科学—烟草工业]