| 设施栽培土壤有机质和氮素含量的积累规律 |
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| 引用本文： | 李润,李絮花,袁亮,路超,赵朋.设施栽培土壤有机质和氮素含量的积累规律[J].山东农业科学,2006(2):64-67. |
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| 作者姓名： | 李润 李絮花 袁亮 路超 赵朋 |
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| 作者单位： | 山东农业大学资源与环境学院,山东,泰安,271018 |
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| 基金项目： | 山东农业大学校科研和教改项目 |
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| 摘 要： | 研究了不同土壤类型和棚龄的设施栽培土壤有机质和氮素含量的变化规律。结果表明:设施栽培土壤有机质、全氮和有效氮含量显著高于露地土壤,0~20 cm土层分别提高16.5 g/kg、1.02 g/kg、55.52mg/kg,20~40 cm土层分别高13.9 g/kg、0.75 g/kg、39.54 mg/kg;且0~20 cm土层明显高于20~40 cm土层,增加量具有相同的趋势。在一定年限内随棚龄的延长,土壤有机质、全氮和有效氮含量增加,呈明显的积累现象。
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| 关 键 词： | 设施栽培 有机质 全氮 有效氮 |
| 文章编号： | 1001-4942（2006）02-0064-04 |
| 收稿时间： | 2005-11-30 |
| 修稿时间： | 2005年11月30 |
Accumulative regularity of organic matter and nitrogen content in sheltered ground |
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| LI Run,LI Xu-hua,YUAN Liang,LU Chao,ZHAO Peng.Accumulative regularity of organic matter and nitrogen content in sheltered ground[J].Shandong Agricultural Sciences,2006(2):64-67. |
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| Authors: | LI Run LI Xu-hua YUAN Liang LU Chao ZHAO Peng |
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| Abstract: | This test researched the change of soil organic matter and nitrogen content in sheltered ground.The results showed that the contents of organic matter,total N and available N of sheltered ground were all higher than the contrast bare ground,which increased 16.5 g/kg,1.02 g/kg and 55.52 mg/kg of 0～20 cm soil,and 13.9 g/kg,0.75 g/kg and 39.54 mg/kg of 20～40 cm soil respectively;those contents of 0～20 cm soil were obviously higher than that of 20～40 cm soil with the same increase trend.The contents of organic matter,total N and available N of sheltered ground increased and accumulated obviously with the extend of planting years in certain years. |
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| Keywords: | Sheltered ground Organic matter Total N Available N |
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