胡晓棠, 李明思. 膜下滴灌对棉花根际土壤环境的影响研究[J]. 中国生态农业学报(中英文), 2003, 11(3): 121-123.
引用本文: 胡晓棠, 李明思. 膜下滴灌对棉花根际土壤环境的影响研究[J]. 中国生态农业学报(中英文), 2003, 11(3): 121-123.
HU Xiao-Tang, I Ming-Si. Effect of trickle irrigation under sub-film on the soil conditions of rhizosphere in cotton[J]. Chinese Journal of Eco-Agriculture, 2003, 11(3): 121-123.
Citation: HU Xiao-Tang, I Ming-Si. Effect of trickle irrigation under sub-film on the soil conditions of rhizosphere in cotton[J]. Chinese Journal of Eco-Agriculture, 2003, 11(3): 121-123.

膜下滴灌对棉花根际土壤环境的影响研究

Effect of trickle irrigation under sub-film on the soil conditions of rhizosphere in cotton

  • 摘要: 试验研究田间膜下滴灌棉花根际土壤的水、热、气变化表明,覆膜滴灌使土壤增温,膜下滴灌使根系浅层土壤含水量高于深层土壤含水量,加剧棉花根系浅层水平的分布使田间土壤干、湿间隔排列,有利于膜下土壤气体交换。棉田膜下滴灌技术节约灌溉水40%~50% ,且使棉花增产20%左右。

     

    Abstract: Based upon field experiments and by sub-film trickle technique,the soil environment of cotton rhizosphere including moisture,heat,and air conditions is studied.The results show that film mulch can increase soil temperature and the cotton root system nearly grows horizontally in upper soi1.Furthermore.it is found that sub-film trickle irrigation is advantageous of air transfer in the soil beneath film since the irrigational technique results in the alternative rows of dry soilzones and wetted soil zones in field.With the sub-film trickle irrigation technique to cotton in field,the irrigation water for the cotton has been saved by 40% ~ 50% .and the cotton yield has been increa sed by 20% .

     

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