| 粉煤灰包膜缓释肥养分释放特征分析 |
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| 引用本文： | 白晓瑛,陈学涛,邱现奎,王艳华,胡国庆,董元杰.粉煤灰包膜缓释肥养分释放特征分析[J].河北农业技术师范学院学报,2013(3):25-29. |
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| 作者姓名： | 白晓瑛 陈学涛 邱现奎 王艳华 胡国庆 董元杰 |
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| 作者单位： | [1]山东农业大学资源与环境学院,山东泰安271018 [2]山东泉林嘉有肥料有限责任公司,山东泰安271018 |
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| 基金项目： | 山东省高等学校青年骨干教师国内访问学者项目;＂十二五＂国家科技支撑项目（项目编号：2011BAD11B01,2011BAD11B02）;国家＂948＂项目（项目编号：2011-G30）. |
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| 摘 要： | 通过室内恒温土柱淋洗试验,研究了包膜在肥料中的质量分数分别为0.05,0.10和0.15时的3种缓释肥料养分释放规律.结果表明,28 d以后,粉煤灰包膜肥淋溶液NH4＋-N和NO3--N均高于普通复合肥处理；3种自制粉煤灰包膜肥料能降低氮、磷和钾素累计淋出率,且厚度越大效果越好.
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| 关 键 词： | 包膜缓释肥 养分释放特征 粉煤灰 |
Nutrients Release Characteristics of Fly Ash Coated Slow-release Fertilizers |
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| Authors: | BAI Xiao-ying CHEN Xue-tao QIU Xian-kui WANG Yan-hua HU Guo-qing DONG Yuan-jie |
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| Institution: | 1 College of Resources and Environment, Shandong Agricultural University, Taian, Shandong,271018 ; 2 Shandong Quanlinjiayou Fertilizer Co. , Ltd, ;China) |
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| Abstract: | Fly ash as the best performance coating materials was selected. In soil column leaching experiment, the nutrients release characteristics of three kinds of slow-release fertilizers with coating thickness, which were 15% ,20% and 25%, were studied. The results showed that after 28 days, the EC, NH4 -N, NO3- -N in leac- hing solution of fly ash coated fertilizer was higher than ordinary fertilizer treatment. The homemade coated fer- tilizer can reduce nitrogen, phosphorus and potassium leaching rate. In addition, the nitrogen, phosphorus and potassium leaching curves a quadratic equation. |
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| Keywords: | coated slow-release fertilizers nutrients release characteristics fly ash |
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