耕作与栽培2025，Vol.45Issue(8)：18-25,8.
不同作物轮作对植烟土壤通透性的影响
Effects of Different Crop Rotations on the Permeability of Tobacco Growing Soils
摘要
Abstract
To explore effective agronomic measures for improving the permeability of tobacco-planting soil,a field experiment was conducted in the Guiyang tobacco-growing area.The effects of different winter crop rotations on soil bulk density,poros-ity,water-stable aggregate content,and aggregate stability were investigated.The results showed that crop rotation signifi-cantly reduced the bulk density and increased the total porosity in the 0-30 cm cultivated layer.Rotation with peas or garlic significantly increased capillary porosity in the 0-15 cm soil layer,with a minor increase in aeration porosity.In contrast,ro-tation with cabbage significantly enhanced aeration porosity in the 15-30 cm cultivated layer,while capillary porosity re-mained largely unchanged.Crop rotation was more conducive to protecting the aggregate structure in the 0-30 cm cultivated layer,whereas fallow led to an increase in the content of micro-aggregates smaller than 0.25 mm.In summary,annual crop rotation promoted the stability of well-structured soil aggregates and improved soil permeability.Fibrous-rooted crops help enhance the stability of topsoil aggregates,moderately increase total porosity,and optimize the proportion of large and small pores,while tap-rooted crops were more effective in improving the permeability of deeper soil layers.关键词
土壤孔性/土壤结构体/烤烟/轮作Key words
soil porosity/soil structure/flue-cured tobacco/rotation分类
农业科技引用本文复制引用
黄维,龚冰,陈刚,廖勇,邹静,黄莺..不同作物轮作对植烟土壤通透性的影响[J].耕作与栽培,2025,45(8):18-25,8.基金项目
贵州省烟草公司贵阳市公司科技项目2022-09 （）
贵州省科技计划项目:黔科合基础-ZK[2023]一般116 （）
