Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (23): 32-37.doi: 10.11924/j.issn.1000-6850.casb16080074

Special Issue: 资源与环境 烟草种植与生产 农业生态

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Effect of Row-Spacing Allocation on Micro-ecological Environment in Tobacco Field and Tobacco Photosynthetic Characteristics and Output Value

Guan Saisai1, Li Zhipeng1, Yu Xiaona1, Zong Shengjie1, Zeng Xianli2, Zheng Wenran2, Ye Xiefeng1   

  1. (1Tobacco Science College of Henan Agricultural University, Zhengzhou 450002;2Wulong Tobacco Company of Chongqing Tobacco Company, Chongqing 408500)
  • Received:2016-08-17 Revised:2016-09-27 Accepted:2016-10-12 Online:2017-08-21 Published:2017-08-21

Abstract: In order to explore the optimal flue-cured tobacco allocations of row-spacing in Wuling mountainous area, field experiment was conducted to study on effects of allocations of row-spacing on microecological environment in tobacco field,tobacco photosynthetic characteristics and output value of flue-cured Tobacco.The results showed that:?The suitable row-spacing was help to creat a good microecological environment for flue-cured tobacco.?The net photosynthetic rate (Pn) of 0.12×0.40m treatment and 0.12×0.60m treatment were higher.The intercellular CO2 concentration (Ci) of 0.11×0.40m treatment and 0.11×0.50m treatment were higher.The transpiration rates (Tr) of 0.12×0.40m treatment and the vapor pressure deficit (VPD) of 0.11×0.60m treatment were significantly higher than other treatments.?The performance of 0.12×0.40m treatment’s yield and output value was better.The high grade leaf proportion and average price of 0.12×0.40m treatment were higher.Comprehensive analysis,the optimal flue-cured tobacco allocations of row-spacing in Wuling mountainous area was row spacing 0.12m and spacing 0.40m.