| 湖南烟区土壤K、Mg营养及其施肥效应 |
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| 引用本文： | 李明德,肖汉乾,余崇祥,何英豪,郭志强,张一扬,汤海涛.湖南烟区土壤K、Mg营养及其施肥效应[J].土壤通报,2004,35(3):323-326. |
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| 作者姓名： | 李明德 肖汉乾 余崇祥 何英豪 郭志强 张一扬 汤海涛 |
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| 作者单位： | 1. 湖南省土壤肥料研究所,湖南,长沙,410125
2. 湖南省烟草公司,湖南,长沙,410007 |
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| 摘 要： | 通过对湖南主要烟区3520个土壤样品中K、Mg含量测定的结果表明,湖南省主要烟区植烟土壤的全K、速效K、交换性Mg的含量平均分别为13.7gkg-1、127.3mgkg-1、1.16cmolkg-1;不同烟区其含量差异较大,绝大多数土壤存在着不同程度的缺K、缺Mg状况。田间试验表明,钾、镁肥合理配施(K20360kghm-2、MgS04.7H20300kghm-2)能促进烟草生长,增加烟叶产量、产值,提高烟叶品质,促进烟叶对K、Mg养分的吸收。
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| 关 键 词： | 烟草 K、Mg营养 施肥效应 |
| 文章编号： | 0564-3945(2004)03-0323-04 |
| 修稿时间： | 2003年4月1日 |
K and Mg Nutrition of Soil and Fertilization Effect on Tobacco Production in Hunan |
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| LI Ming-de,XIAO Han-qian,YU Chong-xiang,HE Ying-hao,GUO Zhi-qiang,ZhANG Yi-yang,TANG Hai-tao.K and Mg Nutrition of Soil and Fertilization Effect on Tobacco Production in Hunan[J].Chinese Journal of Soil Science,2004,35(3):323-326. |
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| Authors: | LI Ming-de XIAO Han-qian YU Chong-xiang HE Ying-hao GUO Zhi-qiang ZhANG Yi-yang TANG Hai-tao |
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| Institution: | LI Ming-de~1,XIAO Han-qian~2,YU Chong-xiang~1,HE Ying-hao~1,GUO Zhi-qiang~1,ZhANG Yi-yang~1,TANG Hai-tao~1 |
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| Abstract: | The K and Mg contents of 3520 soil samples from main tobacco production areas in Hunan were determined. The results showed that the contents of total K, available K and exchangeable Mg averaged to 13.7g kg~(-1), 127.3mg kg~(-1) and 1.16 cmol kg~(-1), respectively. The contents had remarkably difference in different tobacco production areas and most soils were variously low of K and Mg. Results of field experiment showed that the combination application of potassium and magnesium fertilizer(K_2O 360kg hm~(-2), MgSO_4.7H_2O 300kg hm~(-2)) enhanced the growth of tobacco, increased leaves yield,quality and output value of tobacco, increased the amount of K and Mg uptaken by the tobacco. |
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| Keywords: | Flue-cured tobacco K and Mg nutrition Fertilization Effect |
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