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| 旱地豆科绿肥腐解及养分释放动态研究 | |
| 引用本文： | 赵娜,赵护兵,鱼昌为,曹群虎,李敏,曹卫东,高亚军. 旱地豆科绿肥腐解及养分释放动态研究[J]. 植物营养与肥料学报, 2011, 17(5): 1179-1187. DOI: 10.11674/zwyf.2011.0205 |
| 作者姓名： | 赵娜 赵护兵 鱼昌为 曹群虎 李敏 曹卫东 高亚军 |
| 作者单位： | 1. 西北农林科技大学资源环境学院,陕西杨凌,712100 2. 陕西省长武县农业技术推广中心,陕西长武,713600 3. 中国农业科学院农业资源与农业区划研究所,北京,100081 4. 西北农林科技大学资源环境学院,陕西杨凌712100／农业部西北植物营养与农业环境重点实验室,陕西杨凌712100 |
| 基金项目： | 公益性行业(农业)科研专项(200803029,201103005); 教育部“新世纪优秀人才支持计划”项目(NCET-08-0465); 西北农林科技大学2007“创新团队建设计划”项目资助 |
| 摘 要： | 采用田间埋袋法对长武怀豆、大豆和绿豆在土壤中长达287 d的养分释放状况进行了监测,旨在查明三种豆科绿肥分解及其养分释放规律。结果表明,三种绿肥均表现为前期腐解快、后期腐解慢,高峰均出现在最初的1个月内。在残留率平稳的阶段,长武怀豆残留率显著高于大豆和绿豆。不同养分的释放有差异:氮、磷、钾在最初的21d内快速释放,其中钾的释放最彻底,287d 后钾的残留率仅为3.2%～5.9%。钙的残留率最高,而且始终没有显著的变化,287d后残留率仍为74.8%～89.8%。镁在前28d 矿化速率较快,残留率已降至30%左右。铜的释放有较明显的波浪起伏。铁在最初的21d内有明显释放,随后变幅不大。锌的残留率在最初的49d内呈下降趋势,49～175d内变化不大,175d后,三种绿肥锌残留率均显著降低。锰残留率的变化在起伏中呈下降趋势,至 287d 时,残留率降到了67.3%～74.1%,仅低于钙。三种绿肥养分释放状况的差异因养分种类而不同:氮、钙、铁、铜和锌的残留率在三种绿肥之间差异较大,钾和镁的残留率差异不显著。除了碳、氮、铜和锌外,其他养分残留率均表现为绿豆最低;除了碳、氮、铜和铁外,其他养分残留率均表现为大豆最高。 |
| 关 键 词： | 豆科绿肥 养分释放 旱地 |
| 收稿时间： | 2010-05-07 |
Nutrient releases of leguminous green manures in rainfed lands |
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| ZHAO Na,ZHAO Hu-bing,YU Chang-wei,CAO Qun-hu,LI min,CAO Wei-dong,GAO Ya-jun,( College of Resource , Environment,Northwest A , F University,Yangling,Shaanxi ,China, Shaanxi Changwu District Agro-technology Extension Center,Changwu,Shaanxi. Nutrient releases of leguminous green manures in rainfed lands[J]. Plant Nutrition and Fertilizer Science, 2011, 17(5): 1179-1187. DOI: 10.11674/zwyf.2011.0205 | |
| Authors: | ZHAO Na ZHAO Hu-bing YU Chang-wei CAO Qun-hu LI min CAO Wei-dong GAO Ya-jun ( College of Resource Environment Northwest A & F University Yangling Shaanxi China Shaanxi Changwu District Agro-technology Extension Center Changwu Shaanxi |
| Affiliation: | ZHAO Na1,ZHAO Hu-bing1,YU Chang-wei2,CAO Qun-hu2,LI min1,CAO Wei-dong3,GAO Ya-jun1,4*(1 College of Resource and Environment,Northwest A & F University,Yangling,Shaanxi 712100,China,2 Shaanxi Changwu District Agro-technology Extension Center,Changwu,Shaanxi 713600,3 Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,4 Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China,Ministry of Agriculture,Shaanxi... |
| Abstract: | In order to investigate the nutrient decayed and released rules,the nylon mesh bag method was used to monitor the nutrient releases from the manures of Huai bean,soybean and mungbean to soil in 287 days.The results show that all these green manures have an initial rapid decaying and then a slow decaying,and peak in the first month.During the stable phase,Huai bean has higher residual ratio than those of soybean and mungbean.The releases of different nutrients in green manures are varied.Nitrogen,phosphorus ... |
| Keywords: | leguminous green manure nutrient release dry land |
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