福建烟区土壤镁营养状况及其施用效果研究  

The status of magnesium nutrition and its application effect in Fujian tobacco planting area

作　　者：李春英[1] 高伟民[1] 陈腊梅[1] 熊德中[2] 

机构地区：[1]福建省烟草公司,福建福州350003 [2]福建农业大学,福建福州350002

出　　处：《河南农业大学学报》2000年第1期63-66,共4页Journal of Henan Agricultural University

基　　金：福建省烟草公司资助项目!(95003)

摘　　要：通过对福建烟区 117个代表性土壤及相应的烟叶样品的分析结果表明 :福建烟区平均土壤交换性Mg含量为 31.78mg·kg-1,土壤有 80 %以上交换性Mg含量低于临界值 ,有 5 0 %以上烟叶存在不同程度的缺Mg现象 ,烟叶Mg含量大部分在0 15 %～ 0 .2 5 % 不同土壤类型交换性Mg含量顺序是 :紫泥田 >潮沙田 >黄泥田 >灰泥田 >沙质田 >乌泥田 不同品种烟叶中Mg含量不同 ,外引品种K32 6 ,G80烟叶中Mg含量高于当地品种翠碧一号和岩烟 97 通过施用 2 2 5kg hm-1MgSO4 ·7H2 O 。The results of the study for 117 samples of soils and leaves in Fujian main tobacco planting area were summarized as follows:the content of exchangeable magnesium in the tobacco soil on an average was 31.78 mg.kg -1 .In over 80% of all the soil samples,the content of exchangeable magnesium was lower than the critical level.In over a half of tobacco leaves,magnesium was deficient in different degree.The content of exchangeable magnesium in most tobacco leaves varied from 0.15% to 0.25%. The content of exchangeable magnesium in varied soils was summarized as follows:Purple Paddy>Tidal Sandy Paddy>Yellow Paddy>Marl Field>Sondy Field>Black Paddy.The content of exchangeable magnesium in tobacco leaves in the two foreign varieties K326 and G80 was higher than that in the two native varieties Cuibi No. 1 and Yanyan97.The effect of applying 225 mg.kg -1 (Mg SO 4·7H 2O) was obvious on the increase in yield and quality of flue cured tobacco.

关 键 词：Mg营养 施肥 烤烟 品质 产量 

分 类 号：S572.062[农业科学—烟草工业] S143.7[农业科学—作物学]