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| 黔南植烟土壤交换性钙镁含量研究简 | |
| 引用本文： | 陈永安,张西仲,杨梅林,武德传,李章海,江玉平.黔南植烟土壤交换性钙镁含量研究简[J].现代农业科技,2013(19):250-251,255. |
| 作者姓名： | 陈永安 张西仲 杨梅林 武德传 李章海 江玉平 |
| 作者单位： | 1. 贵州省黔南州烟草公司,贵州都匀,558000 2. 安徽农业大学农学院 3. 中国科学技术大学烟草与健康研究中心 4. 中国科学技术大学地球与空间科学学院 |
| 基金项目： | 贵州省黔南州烟草公司“十二五”科技重大专项“黔南山地烤烟专用肥区域配方及施肥技术研究”。 |
| 摘 要： | 钙、镁是影响烤烟产量和品质的重要中量营养元素。为了解黔南山地植烟土壤交换性钙、镁丰缺状况。2009年在黔南州9个县（市）采集植烟土壤样品1250份，并进行土壤交换性钙、锾含量分析。结果表明：黔南州植烟土壤交换性钙含量在50．90-63331．12mg／kg，平均为1310．12mg／kg；交换性镁含量在1．14～1583．17mg／kg，平均为182．44mg/kg。27％的土壤缺钙，主要位于独山县和龙里县。15.3％的土壤缺镁，主要位于独山县和惠水县。交换性钙镁比超过20的土壤占14．8％，主要位于平塘县、惠水县、长顺县和独山县。土壤pH值与交换性钙、镁呈正相关关系，pH值对交换性钙影响比交换性镁大。 |
| 关 键 词： | 植烟土壤 交换性钙 交换性镁 钙镁比 黔南州 |
Study on Exchangeable Calcium and Magnesium of Tobacco-growing Soil in the South of Guizhou Province |
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| Authors: | CHEN Yong-an ZHANG Xi-zhong YANG Mei-lin WU De-chuan LI Zhang-hai JIANG Yu-ping |
| Institution: | 1 Tobacco Company of the South of Guizhou Provmce,Doyma Guizhou 558000 ; 2 College of Agronomy, Anhui Agricultural University; 3 Research Center of Tobacco and Health, University of Science and Technology of China; 4sohool of Earth and Space Sciences,University of Science and Technology of China) |
| Abstract: | Calcium and magnesium are essential middle elements that affect tobacco yield and quality.To investigate abundance and deficiency of tobacco-growing soil exchangeable calcium and magnesium in the south of Guizhou Province, 1 250 soil samples were collected from 9 tobacco-growing counties,and exchangeable calcium and magnesium were determined in 2009.Results showed that soil exchangeable calcium in the south of Guizhou Province ranged from 50.90 mg/kg to 63 331.12 mg/kg,and the mean was 1 310.12 mg/kg.Soil exchangeable magnesium ranged from 1.14 mg/kg to 1 583.17mg/kg,and the mean was 182.44 mg/kg.Soil with exchangeable calcium deficiency,which were mainly located in Dushan county and Longli county, accounted for 27 per cent of the whole samples.Soil with exchangeable magnesium deficiency, which were mainly located in Dushan County and Huishui County, accounted for 15.3 per cent of the whole samples.Soil that the ratios of exchangeable Ca/Mg was above 20,which were mainly located in Pingtang County, Huishui County, Changshun County and Dushan County, accounted for 14.8 per cent. |
| Keywords: | tobacco-growing soil exchangeable calcium exchangeable magnesium Ca/Mg the south of Guizhou Province |
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