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| 黑土区长期施肥后土壤供氮能力与氮肥利用特征的研究 | |
| 引用本文： | 朱霞,韩晓增,王凤菊. 黑土区长期施肥后土壤供氮能力与氮肥利用特征的研究[J]. 农业系统科学与综合研究, 2010, 26(1): 59-62 |
| 作者姓名： | 朱霞 韩晓增 王凤菊 |
| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081;中国科学院成都生物研究所,四川,成都,610041;中国科学院研究生院,北京,100049 2. 中国科学院东北地理与农业生态研究所,黑龙江,哈尔滨,150081 3. 东北农业大学资源与环境学院,黑龙江,哈尔滨,150030 |
| 基金项目： | 中国科学院知识创新工程重要方向项目，国家科技支撑计划项目，中国科学院知识创新工程重大项目 |
| 摘 要： | 利用采自中国科学院海伦农业生态实验站长期定位试验地土样，进行框栽试验，种植玉米，比较了长期不同施肥后黑土供氮能力的变化特征和长期不同施肥对氮肥利用率的影响。结果表明：与长期不施肥处理相比，施肥能显著增加土壤铵态氮、硝态氮、可矿化氮含量和土壤生产力、植株吸氮量；与长期单施化肥相比，化肥配施有机肥能够提高土壤铵态氮、硝态氮、可矿化氮含量和土壤生产力、植株吸氮量。长期不施肥处理土壤的氮肥利用率最高，其次为长期单施化肥处理，氮肥利用率最低为化肥配施有机肥处理，这进一步说明长期施肥能够提高土壤氮素肥力。图3，表3，参13。 |
| 关 键 词： | 供氮能力 氮肥利用率 长期施肥 黑土 |
The Characteristics of Nitrogen Use Efficiency and Soil Nitrogen Supplying after Long-term Fertilization in Black Soil |
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| ZHU Xia,HAN Xiao-zeng,WANG Feng-ju. The Characteristics of Nitrogen Use Efficiency and Soil Nitrogen Supplying after Long-term Fertilization in Black Soil[J]. System Sciemces and Comprehensive Studies In Agriculture, 2010, 26(1): 59-62 | |
| Authors: | ZHU Xia HAN Xiao-zeng WANG Feng-ju |
| Affiliation: | 1. Northeast Institute of Geography and Agricultural Ecology/a>;Chinese Academy of Sciences/a>;Harbin 150081/a>;China/a>;2. Chengdu Institute of Biology/a>;Chengdu 610041/a>;3. Graduate University of Chinese Academy of Sciences/a>;Beijing 100049/a>;4. College of Recourse and Environment/a>;Northeast Agricultural University/a>;Harbin 150030/a>;China |
| Abstract: | The experiment was carried out to study the characteristics of nitrogen use efficiency and soil nitrogen supplying of lack soil in Hailun Agricultural Ecology Station,Chinese Academy of Sciences after long-term fertilization. The results showed that compared with control (no fertilizer application),applying fertilizer could increase the content of soil ammonia,soil nitrate,mineralizable N,plant N and soil productivity obviously; compared with single application of nitrogen fertilizer,chemical fertilizer ame... |
| Keywords: | nitrogen supplying nitrogen use efficiency long-term fertilization black soil |
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