| 土壤-植物系统中光照与氮素的相互关系研究 |
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| 引用本文： | 曾希柏,候光炯,青长乐,谢德体.土壤-植物系统中光照与氮素的相互关系研究[J].生态学报,2000,20(1):103-108. |
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| 作者姓名： | 曾希柏 候光炯 青长乐 谢德体 |
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| 作者单位： | 1. 中国农业科学院山区研究室,北京,100081
2. 西南农业大学资源环境学院,重庆,400716 |
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| 摘 要： | 运用盆栽试验，以莴笋为材料，在人工气候箱内进行研究，其结果表明：光照强度的变化，不仅会引起莴笋生物量和养分吸收量的改变，而且也将导致土壤养分状况的差异，不同肥力的３种紫色土，其养分含量受光照强度变化影响的状况是，ＮＨ＾＋４－Ｎ和ＮＯ＾－３－Ｎ的含量均在大眼泥土〉沙土〉石骨子土，而碱解氮含量的变化则以沙土〉石骨子土〉大眼泥土。光照强度的变化亦影响氮肥的施用效果，在试验光强（８０－３２０μｍｏｌ／ｍ２
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| 关 键 词： | 光照 氮素 相互关系 土壤－－植物系统 光肥平衡 |
| 收稿时间： | 1997/10/10 0:00:00 |
| 修稿时间： | 1998/3/16 0:00:00 |
Interrelation of light and nitrogen in soil plant system |
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| ZENG Xibo,HOU Guangjiong,QING Changle and XIE Deti.Interrelation of light and nitrogen in soil plant system[J].Acta Ecologica Sinica,2000,20(1):103-108. |
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| Authors: | ZENG Xibo HOU Guangjiong QING Changle and XIE Deti |
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| Institution: | Upland Researchn Center; Chinese Academy of Agricultural Science; Beijing; China |
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| Abstract: | The result of pot culture experiments of lettuce in artificial climate cases indicated that the change of light intensity not only influenced the change of lettuce yield and the take up of soil nutrients,but also caused the change of nutrient content in different soils.the change of nutrient contents in three purple soils affected by light were that NH + 4 N and NO - 3 N contents were:in loarnic purple soil>sandic purple soil>gravelic purple soil,but the alkaline hydrolyzable N contents in them was:... |
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| Keywords: | light nitrogen crop interrelation |
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