| 长期单施化肥对土壤性状及作物产量的影响 |
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| 引用本文： | 吕家珑,张一平,王旭东,赵高霞,张春惠. 长期单施化肥对土壤性状及作物产量的影响[J]. 应用生态学报, 2001, 12(4): 569-572 |
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| 作者姓名： | 吕家珑 张一平 王旭东 赵高霞 张春惠 |
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| 作者单位： | 西北农业大学资源与环境科学系 |
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| 基金项目： | 国家自然科学基金重大项目(39790100). |
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| 摘 要： | 1978－1998年在陕西关中地区农田的长期定位试验研究表明，长期单纯化肥基本上可以维持土壤有机质和NP水平，单施化肥与化肥配合有机肥处理的作物产量基本相当，但是，单施化肥处理使土壤腐殖质能量水平降低，分子缩合程度和芳构化度增大，“老化”作用增强。
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| 关 键 词： | 长期定位试验 单施化肥 土壤性状 产量 |
| 文章编号： | 1001-9332(2001)04-0569-04 |
| 修稿时间： | 1999-02-02 |
Effect of long-term single application of chemical fertilizer on soil properties and crop yield. |
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| J Lü,Y Zhang,X Wang,G Zhao,C Zhang. Effect of long-term single application of chemical fertilizer on soil properties and crop yield.[J]. The journal of applied ecology, 2001, 12(4): 569-572 |
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| Authors: | J Lü Y Zhang X Wang G Zhao C Zhang |
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| Affiliation: | Northwestern Agricultural University, Yangling 712100. ljl@public.xa.sn.cn |
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| Abstract: | A long-term located experiment showed that single application of chemical fertilizer basically sustained the quantity le- vel of soil organic matter,nitrogen and phosphrous,reduced the energy level of soil humus and inhanced its condensation degree,aromaticity and aging function.The corp yield was basically the same as that of combined application with organic manure. |
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| Keywords: | Long-term located experiment Singal application of chemical fertilizer Soil properties Crop yield. |
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