南平烟区土壤的肥力状况

The status of soil fertility in Nanping tobacco-growing areas

对南平烟区有代表性的481个土壤样品进行分析化验,结果表明,土壤平均pH值为5.06,有机质、物理性粘粒(<0.01mm)、全N、碱解N、全P、速效P、全K、速效K、缓效K、交换性Ca、交换性Mg、有效S、有效Fe、有效Mn、有效Cu、有效Zn、有效B、水溶性C l含量分别为24.24 g.kg-1、38.9%、1.61 g.kg-1、153.8 mg.kg-1、0.46 g.kg-1、17.7 mg.kg-1、23.30g.kg-1、94.5 mg.kg-1、314.7 mg.kg-1、492.7 mg.kg-1、35.4 mg.kg-1、30.3 mg.kg-1、47.3 mg.kg-1、13.1mg.kg-1、3.5 mg.kg-1、3.0 mg.kg-1、0.20 mg.kg-1和22.9 mg.kg-1.南平烟区土壤酸度较强,N素含量中等,土壤P素水平偏低,K素资源缺乏,Mg、B营养元素含量不足.

The 481 soil samples from Nanping tobacco - growing areas were analyzed. The result showed the soil composition contents were as follows： organic matter 24.24 g·kg^-1 , physical clay（ 〈0.01 mm）38.9%, total N 1.61 g ·kg^-1 , hydrolytic N 153.8 mg·kg^-1, total P0.46 g ·kg^-1, available P 17.7 mg ·kg^-1 , total K 23.30 g ·kg^-1, available K94.5 mg ·kg^-1 , exchangeable Ca 492.7 mg ·kg^-1, exchangeable Mg 35.4 mg ·kg^-1, available S 30.3 mg ·kg^-1, available Fe47.3 mg ·kg^-1, available Mn 13.1 mg ·kg^-1 , available Cu 3.5 mg·kg^-1, available Zn 3.0 mg·kg^-1 , available B 0.20 mg ·kg^-1 , water soluble Cl 22.9 mg ·kg^-1. The pH of the soil in the tobacco-growing areas （ pH 5.06） were lower, the N in soil was suitable, the content of P, Mg, B in the soil were deficient.