| 长期施肥对褐潮土氮、有机质动态变化的影响 |
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| 引用本文： | 宋永林,李秀英,李小平.长期施肥对褐潮土氮、有机质动态变化的影响[J].中国农学通报,2010,26(18):206-209. |
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| 作者姓名： | 宋永林 李秀英 李小平 |
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| 作者单位： | 农业部作物营养与施肥重点实验室,中国农业科学院农业资源与农业区划研究所,北京,100081 |
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| 基金项目： | 科技部基础性项目"农田长期试验资料的深加工与整编"(2007FY220400)资助:中央级公益性科研院所及本科学业务费专项基金 |
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| 摘 要： | 通过北京昌平“国家褐潮土土壤肥力和肥料效益监测基地”的长期定位试验（1991-2003年），研究了长期施肥条件下对褐潮土氮、有机质动态变化的影响。结果表明：氮磷钾化肥配施有机物料提高耕层土壤全氮的效果最为明显，配施有机肥和秸秆处理分别比不施肥增加21.11%和14.35%，明显高于单一施用化肥。长期单施氮肥，或氮磷配合，或氮磷钾配合也显著增加了土壤全氮含量，分别比对照增加10.03%,8.32%和8.40%，而磷钾配合降低了土壤全氮含量。土壤碱解氮含量仍然是氮磷钾配施有机肥或秸杆处理优于单施化肥，分别比对照增加34.97%和32.96%，长期单施氮肥，或氮磷配合，或氮钾配合，或氮磷钾配合，分别比对照增加17.26％,21.55%，23.83%和26.41%。配合施用有机肥处理耕层土壤有机质含量明显高于单施化肥处理；与不施肥比较，NPK＋秸秆以及NPK＋有机肥处理土壤有机质含量分别增加7.90％和14.56％,氮磷钾配合和氮磷配合分别比对照增加6.51％和5.89%，而单施氮肥仅增加2.56%。可见NPK平衡施用及其配施有机肥对增加土壤有机质含量具有重要作用。
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| 关 键 词： | 中药 中药 奶牛 乳房炎 病原菌 抑杀效果 |
| 收稿时间： | 3/2/2010 12:00:00 AM |
| 修稿时间： | 6/9/2010 12:00:00 AM |
Effect of long-term fertilization on N and oranic matter dynamicchanges in fluvo-aqvic soil |
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| Song Yonglin,Li Xiuying,Li Xiaoping.Effect of long-term fertilization on N and oranic matter dynamicchanges in fluvo-aqvic soil[J].Chinese Agricultural Science Bulletin,2010,26(18):206-209. |
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| Authors: | Song Yonglin Li Xiuying Li Xiaoping |
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| Institution: | (Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081) |
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| Abstract: | Based on National Supervision Base for Aqui-cinnamon Soil Fertility and Fertilizer Benefits in Changping, Beijing （1991-2003）, the effect of long-term fertilization on N and oranic matter dynamicchanges in fluvo-aqvic soil,the main results obtained：the combined application of NPK with organic materials can increase soil total N content obviously. Both two treatments of NPKM and NPK ＋ straw increased total soil N by 21.11% and 14.35%, respectively, which was higher than that of chemical fertilizer alone markedly. Compared with CK, long-term application of N, NP, and NPK increased soil total N by 10.03%, 8.32% and 8.40%, respectively, while PK treatment decreased soil total N content. Meanwhile, long-term application of N only, NP, NK and NPK increased content of available nitrogen by 17.26% , 21.55% , 23.83% and 26.41% , separately; Both two treatments of NPKM and NPK ＋ straw were greatly superior to the treatment of those chemical fertilizer alone, with the increment of available nitrogen by 34.97% and 32.96%, respectively. The content of soil organic matter（OM） of NPKM treatment was higher than that of single chemical fertilizer treatment significantly. In comparison with CK, soil OM with treatments of NPK ＋ Straw, NPKM, NPK, NP and N only increased by 7.90%, 14.56%, 6.51%, 5.89% and 2.56%, respectively. Therefore, balanced application of NPK, and combined application of NPK with organic materials play a very important role in improving soil OM status. |
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| Keywords: | long-term fertilizer experiment fluvo-aquil soil N soil organic matter dynamic changes |
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