| 福建烟区土壤镁素营养与镁肥合理施用 |
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| 作者姓名： | caigen@.com |
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| 作者单位： | 光泽县烟草公司，福建省烟草公司，福建省烟草公司，福建农林大学资源与环境学院 福建，光泽，354100，福建，福州，350003，福建，福州，350003，福建，福州，350002 |
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| 基金项目： | 福建省教育厅高校社会科学研究项目;福建省烟草公司资助项目 |
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| 摘 要： | 对福建烟区2253个有代表性的土样及相应田块烟样的分析结果表明:全省烟区土壤交换性镁含量在1.80￣256.80mg/kg,平均为34.49mg/kg,有88.86%的土壤交换性镁含量低于50mg/kg;烟叶中镁的含量在0.06%￣1.60%,平均为0.24%,有43.00%的烟叶含镁量小于0.20%。可见福建烟叶含镁量低,应重视镁肥合理施用。大田试验结果表明:氧化镁是福建烟区较理想的镁肥;缺镁烟田氧化镁的适宜用量是75￣150kg/hm2。
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| 关 键 词： | 烟叶 状况 合理施用 |
The Status of Magnesium Nutrition and its Rational Application in Fujian Tobacco-growing Areas |
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| Authors: | S |
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| Institution: | 1 Gtmngze Tobacco Company, Gmmgze, Fujian, 354100; 2 Fujian Tobacco Company, Fuzhou Fujian 350003; 3 College of Resources and Environment, FAU, Fuzhou Fujian 350002 |
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| Abstract: | The results of the study on 2253 samples of soil and leaves in Fujian tobacco planting area were summarized as follows: The range of the content of exchangeable magnesium in the tobacco soil was 1.80~256.80mg/kg, and the average of the content was 34.49mg/kg. 88.86% of all soil samples, the content of exchangeable magnesium were lower than 50mg/kg; The range of the content of magnesium in tobacco leaves was 0.06%~1.60%, and the average of the content was 0.24%. 43.00% of the tobacco leaves samples, and the content of magnesium was lower than 0.20%. The contents of magnesium in the tobacco leaves were poor, and rational application of magnesium fertilizer should be paid attention to. A field experiment was carried out, MgO was the better choice of Mg fertilizer for Fujian tobacco planting area; The proper doses of MgO was 75~150kg/hm2 in soil of magnesium deficiency. |
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