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| 长期定位试验条件下的水稻田土壤有机质含量变化研究 | |
| 引用本文： | 潘世娟,李菊梅,王惠生.长期定位试验条件下的水稻田土壤有机质含量变化研究[J].中国土壤与肥料,2011(3):8-14. |
| 作者姓名： | 潘世娟 李菊梅 王惠生 |
| 作者单位： | 1. 西北农林科技大学农学院,陕西杨凌712100;中国农业科学院农业资源与农业区划研究所,北京100081 2. 中国农业科学院农业资源与农业区划研究所,北京,100081 3. 西北农林科技大学农学院,陕西杨凌,712100 |
| 基金项目： | 国家自然科学基金项目"稻田土壤磷素的积累规律、预测模型与归宿研究"，支撑计划项目，国家级星火计划 |
| 摘 要： | 依托湖北武汉、重庆北碚、湖南望城、湖南祁阳、江西南昌、浙江杭州6个水稻土壤肥力长期定位试验历史样品及数据,分析和讨论了土壤有机质含量变化趋势及对施化肥和有机肥的响应差异。施有机肥提升土壤有机质含量显著高于施化肥的效果。施化肥NPK处理,6个试验点土壤有机质含量都呈现提升趋势;但是,有机质平均年增量、有机质累计增量与累计有机肥施用量的比值都是逐年下降的,固定施肥方法提高土壤有机质含量是有限的,最高达到平衡点,施化肥的有机质含量的平衡点低于施有机肥的,土壤有机质含量提升不仅对施有机肥有响应,而且与累积产量也有一定的相关关系。 |
| 关 键 词： | 长期试验 稻田土壤 土壤有机质 施肥 |
Study on changes of soil organic matter in paddy soil under long-term experiments |
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| PAN Shi-juan,LI Ju-mei,WANG Hui-sheng.Study on changes of soil organic matter in paddy soil under long-term experiments[J].Soil and Fertilizer Sciences in China,2011(3):8-14. | |
| Authors: | PAN Shi-juan LI Ju-mei WANG Hui-sheng |
| Institution: | PAN Shi-juan1,2,LI Ju-mei2,WANG Hui-sheng1(1.College of Agronomy,Northwest A&F University Yangling,Shaanxi 712100,2.Institute of Agricultural Resources and Regional Planning,CAAS,Beijing 100081) |
| Abstract: | Field investigation and soil sample analysis methods were adopted on the six long-term experiments in Hubei Wuhan Station,Chongqing Beibei Station,Hunan Wangcheng Station,Hunan Qiyang Station,Jiangxi Nanchang Station,Zhejiang Hangzhou Station,China.The amount of soil organic matter was increased higher by organic fertilizer than chemical fertilizer significantly,average rate of soil organic increased was decreased year by year,and rate of summation of soil organic matter year increased to total amount of or... |
| Keywords: | long-term experiments paddy soil organic matter fertilization |
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