秸秆覆盖对烟田土壤性状和烟叶质量的影响
Journal of Henan Agricultural Sciences(2007)
Abstract
通过大田试验研究了揭膜后不同秸秆覆盖量(3000kg/hm2,6000kg/hm2,9000kg/hm2)对烟田土壤的物理、化学、生物特性以及烟叶品质的影响。结果表明:揭膜后覆盖秸秆可以降低土壤容重和pH值,调节地温,提高土壤有机质和水分含量,增加土壤微生物数量,提高烟叶钾含量。与不覆盖秸秆比较,覆盖秸秆处理的土壤容重降低0.027~0.075g/cm3,土壤pH值降低0.18~0.44,土壤有机质含量增加0.3~1.0g/kg,烟叶钾含量增加0.10%~0.29%。在3个覆盖处理中,以6000kg/hm2覆盖量处理对改善烟田土壤性状和烟叶质量的效果最好。
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Key words
Quality of tobacco leaf,Tobacco,Potassium,Straw mulching,Soil property
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