不同垄向对旺长期烟田微生态环境的影响

Effects of Ridge Direction on Micro-ecological Environment in Vigorous Growth Period of Tobacco Field

采用田间小区试验的方式,以云烟97为试验材料,研究了烟田垄体走向对烟田微生态环境的影响。结果表明,移栽45 d时,各处理烟田二氧化碳浓度均以南北垄最高,而烟田光照则以东西垄最高,植株上方10 cm处、植株上部和植株下部的烟田光照,均表现为垂直垄处理最低;植株上部的温度表现为南北垄>垂直垄>东西垄;植株上方10 cm处的风速表现为东西垄>南北垄>垂直垄,植株中部的风速表现为垂直垄>东西垄>南北垄,而植株下部的风速则表现为东西垄>南北垄>垂直垄。

A field experiment was conducted to study the effects of ridge direction on flue-cured tobacco micro-ecological environment and quality of flue-cured tobacco leaves at different positions of vigorous growth period.The results indicated that the highest CO2 concentration appeared in the treatment of south-north ridge direction,but the highest light intensity occurred in the treatment of east-west ridge direction,and the lowest light intensity in plant upper 10 cm,plant top and plant bottom all was in the treatment of southeast-northwest ridge direction.The temperature in plant upper showed that south-north ridge directionsoutheast-northwest ridge directioneast-west ridge direction.The wind speed in plant upper 10 cm and plant bottom displayed that east-west ridge directionsouth-north ridge directionsoutheast-northwest ridge direction.However,the wind speed in plant middle showed southeast-northwest ridge directioneast-west ridge directionsouth-north ridge direction.