| 日本包膜缓释肥料养分释放及微结构研究 |
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| 引用本文： | 邹洪涛,韩艳玉,张玉玲,虞娜,新田郎,曹敏建,张玉龙.日本包膜缓释肥料养分释放及微结构研究[J].土壤通报,2011(4):926-930. |
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| 作者姓名： | 邹洪涛 韩艳玉 张玉玲 虞娜 新田郎 曹敏建 张玉龙 |
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| 作者单位： | 沈阳农业大学农业部东北土壤与环境重点开放实验室;日本富山县农业研究所; |
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| 基金项目： | 国家自然科学基金(31000936); 教育部重点项目(209032); 中国博士后科学基金(20090450158); 日本海外研修员项目资助 |
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| 摘 要： | 采用恒温水培试验,研究了日本生产的五种包膜肥料(LP40、LPS40、SC60、LPSS和LPSS100)氮素释放特性,用一级反应动力学方程进行拟合,并用扫描电镜观察了包膜肥料水培前后膜的微观结构。结果表明,包膜肥料的膜材料不同,氮素释放量也不同;包膜肥料的氮素释放率随着时间的延长而增加;这五种包膜肥料的氮素释放特征均可用一级反应动力学方程来描述,氮素释放速率常数与氮素释放率成正比,与氮素溶出的半时值成反比;扫描电镜的图像分析结果显示,水培后LPSS、SC60的膜外表面完整性要好于LP40,LPSS的膜剖面结构很紧实,阻水性能好。
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| 关 键 词： | 包膜肥料 养分释放特性 微观结构 |
Characteristics and Mechanism of Nutrient Release of Coated Slow-release Urea of Japan |
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| ZOU Hong-tao ,HAN Yan-yu ,ZHANG Yu-ling ,YU Na ,XIN Tian Lang ,CAO Min-jian ,ZHANG Yu-long.Characteristics and Mechanism of Nutrient Release of Coated Slow-release Urea of Japan[J].Chinese Journal of Soil Science,2011(4):926-930. |
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| Authors: | ZOU Hong-tao HAN Yan-yu ZHANG Yu-ling YU Na XIN Tian Lang CAO Min-jian ZHANG Yu-long |
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| Institution: | ZOU Hong-tao 1,HAN Yan-yu 1,ZHANG Yu-ling 1,YU Na 1,XIN Tian Lang 2,CAO Min-jian 1,ZHANG Yu-long 1(1.Shenyang Agricultural University,Key Laboratory for Northeast Soil and Environment of the Ministery of Agriculture,Shenyang 110161,China,2.Japan Toyama-Ken Agricultural Institute,930-8501,Japan.) |
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| Abstract: | The nitrogen releasing characteristics from five kinds of coated slow-release urea of Japan(LP40,LPS40,SC60,LPSS and LPSS100) were studied through purified water culture under the same temperature,which is fitted with the first-order reaction model,and microstructure of membranes of coated slow-released urea before and after purified water culture were characterized by a scanning electron microscopy(SEM).Results showed that nitrogen releasing rate of different kinds of coated slow-released urea was differen... |
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| Keywords: | Coated slow-release urea Nitrogen release characteristics Micro-structure |
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