| 植烟沙泥田土掺混紫色土对土壤酶活性及理化性质的影响 |
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| 引用本文： | 李集勤,陈俊标,彭文松,张振臣,马柱文,谢锐鸿,吕锦津,袁清华,李淑玲.植烟沙泥田土掺混紫色土对土壤酶活性及理化性质的影响[J].中国土壤与肥料,2014(5):16-21. |
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| 作者姓名： | 李集勤 陈俊标 彭文松 张振臣 马柱文 谢锐鸿 吕锦津 袁清华 李淑玲 |
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| 作者单位： | 1. 广东省农业科学院作物研究所,广东广州,510640
2. 广东烟草南雄市有限公司,广东南雄,512400 |
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| 基金项目： | 广东省烟草专卖局科技计划项目 |
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| 摘 要： | 为了探讨南雄烟区植烟沙泥田土壤改良新途径,采用盆栽方法研究了沙泥田土掺不同比例紫色土后土壤的理化性质和相关酶活性的变化规律。结果表明:当沙泥田土掺混10%~50%的紫色土后,土壤的砂粒含量逐渐下降到11.57%,粉粒含量逐渐上升到62.19%,土壤质地由壤土逐渐变为粉砂壤土,pH值从微酸性逐渐变成弱碱性;氧化还原酶类酶的活性逐渐增强,水解酶类酶活性则逐渐减弱,微量元素含量(钼除外)逐渐降低,中量元素交换性钙和交换性镁含量分别比对照(A1)增加了313%和37.1%;当沙泥田土掺混30%紫色土时,全钾和缓效钾含量分别比对照(A1)高出50%和69.2%,但其它养分含量有不同程度下降;相关分析结果表明,土壤酶活性受到土壤养分和中微量元素含量的影响,过氧化氢酶、多酚氧化酶、酸性磷酸酶和中性磷酸酶活性与pH值、有机质、全氮、碱解氮、有效磷、全钾和速效钾等养分含量均达到显著或极显著相关水平;有效铜、有效锌、有效硼、交换性钙和交换性镁含量与过氧化氢酶、过氧化物酶、多酚氧化酶和中性磷酸酶活性均达到显著或极显著相关水平;通过主成分分析得出沙泥田土掺混10%紫色土后的土壤因子综合主成分分值最高,掺混效果最好。
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| 关 键 词： | 植烟土壤 沙泥田土 紫色土 土壤酶活性 土壤理化性质 |
| 收稿时间： | 2013/12/2 0:00:00 |
| 修稿时间： | 2014/4/28 0:00:00 |
Effects of tobacco planting sandy soil mixed with different proportions of purple soil on physicochemical properties and soil enzyme activity |
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| LI Ji-qin;CHEN Jun-biao;PENG Wen-song;ZHANG Zhen-chen;MA Zhu-wen;XIE Rui-hong;LV Jin-jin;YUAN Qing-hua;LI Shu-ling.Effects of tobacco planting sandy soil mixed with different proportions of purple soil on physicochemical properties and soil enzyme activity[J].Soil and Fertilizer Sciences in China,2014(5):16-21. |
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| Authors: | LI Ji-qin;CHEN Jun-biao;PENG Wen-song;ZHANG Zhen-chen;MA Zhu-wen;XIE Rui-hong;LV Jin-jin;YUAN Qing-hua;LI Shu-ling |
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| Institution: | LI Ji-qin;CHEN Jun-biao;PENG Wen-song;ZHANG Zhen-chen;MA Zhu-wen;XIE Rui-hong;LV Jin-jin;YUAN Qing-hua;LI Shu-ling;Grops Research Institute Guangdong Academy of Agricultural Science;Guangdong Tobacco Nanxiong Co.Ltd; |
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| Abstract: | In order to explore new ways of improving the fertility of sand soil for planting tobacco in Nanxiong tobacco growing area,the change of physicochemical properties and related enzymes activity after mixed the sandy soil with different proportion of purple soil was studied by pot experiment.The results showed that when the sand soil was mixed with 10% to 50% purple soil,the sand content of the mixing soil gradually decreased to 11.57%,the silt content of the mixing soil gradually increased to 62.19%,the soil texture gradually changed from silt loamto loam,the pH values gradually became weak alkaline from slightly acidic,oxidoreductase enzyme activity was gradually increased,hydrolytic enzyme activity was gradually weakened,the contents of trace elements(except for molybdenum)were decreased,the amount of element content of exchangeable calcium and magnesium were 313% and 37.1% higher than CK1.When the sand soil was mixed with 30% purple soil,total K and slowly available K were 50% and 69.2% higher than CK1,but other nutrient contents decreased in varying degrees.The correlation analysis showed that soil enzyme activity was affected by the content of trace elements and the nutrient content.Catalase,polyphenol oxidase,acid phosphatase and neutral phosphatase significantly or extremely significantly correlated with pH,organic matter,total nitrogen,alkali hydrolyzable nitrogen,available phosphorus,total potassium and available potassium.The content of available copper,available zinc,available boron,exchangeable calcium and magnesium significantly or extremely significantly correlated with catalase,peroxidase,polyphenol oxidase and neutral phosphatase.It obtained by principal component analysis that the sand soil mixed with 10% purple soil had the highest comprehensive scores and had the best mixed effect. |
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| Keywords: | tobacco soil sandy soil purple soil soil enzyme activity soil physical and chemical properties |
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