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土壤养分含量同海拔高度密切相关,为探索湖北巴东县茶店子基地单元不同海拔植烟土壤的理化性状,更好地指导巴东烟叶生产实践工作,对巴东县茶店子基地单元不同海拔植烟土壤的理化性状进行了分析。结果表明:(1)海拔800 m以下区域,植烟土壤理化性状特点是pH值、有机质、氮素、全磷含量处于适宜标准或以上,但速效磷和钾素含量较低;(2)800~1 200 m区域,土壤pH值、氮素含量较为适宜,土壤有机质含量普遍偏高,但是磷素、钾素含量较低;(3)1 200 m以上区域,除土壤pH值偏低以外,其他指标均处于优质烟叶生产范围内或高于标准。结合茶店子基地单元烟叶种植区划目标,建议在生产上采取“控氮、增磷、补钾”的施肥策略,施用充分腐熟的优质有机肥和适量土壤改良剂改良土壤,提高土壤养分利用率,进一步提高烟叶产量和质量。
Soil nutrient content is closely related to altitude. In order to explore the physical and chemical properties of tobacco plantations at Chadianzi base in Badong County of Hubei Province and to better guide the practice of tobacco production in Badong County, The physical and chemical properties of tobacco soil were analyzed. The results showed that: (1) Physiological characteristics of tobacco soil were characterized by pH, organic matter, nitrogen and total phosphorus in the areas below 800 m above sea level at a suitable standard or above, but the available phosphorus and potassium contents were lower; (2) 800 ~ 1200 m, soil pH, nitrogen content is more appropriate, soil organic matter content is generally higher, but the content of phosphorus and potassium is lower; (3) In addition to the low soil pH value above 1 200 m, Other indicators are in the production of high quality tobacco or higher than the standard. Based on the goal of tobacco planting division in Chadianzizi base unit, it is suggested to adopt a fertilization strategy of “controlling nitrogen, increasing phosphorus and potassium supplement” in production, applying fully decomposed high-quality organic fertilizer and proper amount of soil conditioner to improve soil and improve soil nutrient utilization Rate, further improve the yield and quality of tobacco.