| 小麦/玉米间作根系相互作用对氮素吸收和土壤硝态氮含量的影响 |
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| 引用本文： | 叶优良,孙建好,李隆,张福锁.小麦/玉米间作根系相互作用对氮素吸收和土壤硝态氮含量的影响[J].农业工程学报,2005,21(11):33-37. |
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| 作者姓名： | 叶优良 孙建好 李隆 张福锁 |
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| 作者单位： | 中国农业大学资源与环境学院植物营养系,北京,100094;河南农业大学资源与环境学院,郑州,450002;甘肃农业科学院土壤与肥料研究所,兰州,730070;中国农业大学资源与环境学院植物营养系,北京,100094 |
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| 基金项目： | 国家重点基础研究发展规划项目(1999011707)；国家自然科学基金项目(30070450) |
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| 摘 要： | 通过在甘肃河西灌区的田间试验，该文探讨了地下部分隔作用对小麦/玉米间作氮素吸收和土壤硝态氮含量的影响。研究结果表明：小麦/玉米间作，间作小麦和间作玉米吸氮量在没有地下部分隔条件下都高于分隔。小麦收获后，间作小麦地下部分隔与没有地下部分隔之间土壤硝态氮累积量接近；间作玉米不分隔土壤硝态氮含量和累积量高于分隔。玉米收获后，小麦不分隔土壤硝态氮累积量低于分隔，间作玉米不分隔土壤硝态氮含量和累积量都高于分隔。小麦/空带和玉米/空带间作时，作物氮素吸收和土壤硝态氮含量都没差异。
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| 关 键 词： | 小麦/玉米间作 地下部分隔 氮 |
| 文章编号： | 1002-6819(2005)11-0033-05 |
| 收稿时间： | 2004-12-13 |
| 修稿时间： | 2005-04-23 |
Effect of wheat/maize intercropping on plant nitrogen uptake and soil nitrate nitrogen concentration |
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| Ye Youliang,Sun Jianhao,Li Long and Zhang Fusuo.Effect of wheat/maize intercropping on plant nitrogen uptake and soil nitrate nitrogen concentration[J].Transactions of the Chinese Society of Agricultural Engineering,2005,21(11):33-37. |
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| Authors: | Ye Youliang Sun Jianhao Li Long and Zhang Fusuo |
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| Institution: | 1. Department of Plant Nutrition, College of Resources and environment, China Agricultural University, Beijing 100094, China; 2. College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, China; 3. Institute of Soil and Fertilizer, Academy of Gansu Agricultural Sciences, Lanzhou 730070, China |
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| Abstract: | Through field experiment conducted in Hexi corridor of Gansu Province, this paper discussed the effects of root separation on plant nitrogen uptakes and soil nitrate nitrogen accumulation in wheat/maize intercropping. The results showed that the nitrogen uptakes of wheat and maize with root partition were lower than those of without root partition. After wheat harvest, soil nitrate nitrogen concentration in wheat strip with root separation was the same as without root separation; however, soil nitrogen accumulation in maize strip without root separation was much higher than that of with root partition in wheat/maize intercropping. After maize harvest, soil nitrogen accumulation in wheat strip with root separation was higher than that of without root separation; yet, the soil nitrate nitrogen accumulation in maize strip with root separation was lower than that of without root separation. Crop nitrogen uptake and soil nitrate nitrogen concentration existed no significant difference between root partition and no root in wheat/no maize, no wheat /maize intercropping. |
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| Keywords: | wheat/maize intercropping root separation nitrogen |
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