福建烟区土壤中、微量元素丰缺状况及施肥对策

2005年采集了福建省三明、龙岩、南平3个主产烟区有代表性的植烟土壤样品557个，并进行了土壤中、微量元素分析。结果表明，该区植烟土壤平均交换性钙含量1059.3±395.3mg/kg、交换性镁171.2±125.3 mg/kg、有效硫34.1±21.7 mg/kg、水溶性硼0.18±0.14mg/kg、水溶性氯23.5±11.8 mg/kg、有效锌1.99±1.30mg/kg、有效铜2.84±1.56mg/kg、有效铁216.6±98.2mg/kg。有26.2%的土壤缺钙，有12.4%的土壤严重缺镁，有42.2%的土壤缺硫或潜在缺硫，土壤普遍缺B，土壤水溶性Cl含量在比较适宜范围，土壤Cu、Fe、Zn营养供应比较充足。为此，在烟叶生产上要因地制宜，注意增施钙镁磷肥或氧化镁，喷施硼肥。

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

The middle-microelements nutrients in 557 soil samples collected from 3 regions of tobacco-growing areas in Fujian provinces were analyzed．The results showed that the average content of exchangeable Ca, exchangeable Mg, available sulfur, water-soluble B , water-soluble Cl , available Zn, Cu, Fe were 1059.3±395.3mg/kg、171.2±125.3 mg/kg、34.1±21.7 mg/kg、0.18±0.14mg/kg、23.5±11.8 mg/kg、1.99±1.30mg/kg、2.84±1.56mg/kg , 216.6±98.2mg/kg , respectively。26.2% of soil in tobacco-growing areas were short of Ca , 12.4% of soil in tobacco-growing areas were short of Mg, and Calcium magnesium phosphate fertilizer or MgO should be applied. 42.2% of soil in tobacco-growing areas were short of S, the water-soluble B of soil in tobacco-growing areas was deficiency in general, the water-soluble Cl of soil in tobacco-growing areas was suitable for tobacco growth, available Cu, Fe, Zn of soil in tobacco-growing areas was enrichment . The fertilization suggestion of spraying B was recommended.