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福建烟区土壤养分丰缺状况及施肥对策

Soil Nutrients in Tobacco-growing Areas of Fujian Province and Solution to Fertilization

  • 摘要: 分析了福建烟区408个土壤样品的养分,结果表明,该区植烟土壤平均pH5.29,有机质29.70g/kg,全氮1.62g/kg,碱解氮156.97mg/kg,速效磷28.61mg/kg,交换性钾44.58mg/kg,交换性钙380.65mg/kg,交换性镁39.13mg/kg,有效铜4.22mg/kg,有效锌3.56mg/kg,水溶性硼0.08mg/kg,活性锰31.38mg/kg。对烤烟生产来说,福建烟区土壤的pH值偏低,其钾、镁、硼的供应明显不足,为此提出了控氮、降磷、增钾镁、喷施微肥等相应的施肥建议。

     

    Abstract: The nutrients in 408 soil samples collected from tobacco-growing areas in Fujian province were analyzed. The results showed that the average soil pH value was 5.29, the average contents of organic matter, total N, alkalihydrolyzable N, rapidly available P, exchangeable K, exchangeable Ca, exchangeable Mg, available Cu, available Zn, water-soluble B, active Mn were 29.70g/kg, 1.62g/kg, 156.97mg/kg, 28.61mg/kg, 44.58mg/kg, 380.65 mk/kg, 39.13mk/kg, 4.22mg/kg, 3.56mg/kg, 0.08mg/kg, and 31.38mg/kg, respectively. Low soil pH, and deficiency of available K, exchangeable Mg and available B in soil were main limited factors for flue-cured tobacco production. The fertilization suggestion of controlling N, decreasing P, increasing K and Mg, spraying micronutrient was recommended.

     

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