| 包膜尿素态氮肥缓释效果检测方法初探 |
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| 引用本文： | 牟林,韩晓日,张芳,于成广,徐志强.包膜尿素态氮肥缓释效果检测方法初探[J].沈阳农业大学学报,2006,37(6):896-899. |
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| 作者姓名： | 牟林 韩晓日 张芳 于成广 徐志强 |
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| 作者单位： | 1. 沈阳农业大学,土地与环境学院,沈阳,110161
2. 辽宁省土肥总站,沈阳,110034 |
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| 基金项目： | 国家高技术研究发展计划(863计划);辽宁省科技重大攻关项目 |
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| 摘 要： | 根据氮素肥料大多采用含氮量较高尿素作为原料的特点,采用一种检测酰胺态氮的化学方法来研究包膜尿素态氮肥的缓释性能。通过水溶与土壤淋溶试验,对比分析氮素释放率曲线模型。结果表明:该方法能够基本上评价出包膜尿素态氮肥的缓释效果,尤其对疏水型材料包裹的尿素态氮肥评价更为贴切。
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| 关 键 词： | 包膜缓释肥料 淋溶释放试验 检测评价方法 |
| 文章编号： | 1000-1700(2006)06-0896-04 |
| 收稿时间： | 2005-06-10 |
| 修稿时间： | 2005年6月10日 |
Evaluation Method for Nutrient Release Characteristics of Coated Controlled-release Urea Fertilizer |
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| MU Lin,HAN Xiao-ri,ZHANG Fang,YU Cheng-guang,XU Zhi-qiang.Evaluation Method for Nutrient Release Characteristics of Coated Controlled-release Urea Fertilizer[J].Journal of Shenyang Agricultural University,2006,37(6):896-899. |
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| Authors: | MU Lin HAN Xiao-ri ZHANG Fang YU Cheng-guang XU Zhi-qiang |
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| Institution: | 1.College of Land and Environmental Sciences, Shenyang Agricultural University, Shenyang 110161, China; 2.General Station of Soil and Fertilizer in Liaoning Province,Shenyang 110034,China |
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| Abstract: | According to the popularity of urea,we studied a method for determining nitrogen chemistry from coated controlled-release urea fertilizer.With the leaching experiments of soil and water,the model of N nutrient releasing characteristics was ama;gsed.The results showed that the method could evaluate the effect of coated controlled-release urea fertilizer.This method was more precise for studying the mechanism of water resisting material coated controlled-release urea fertilizer. |
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| Keywords: | coated slow-released fertilizer leaching released test method of determination and evaluation |
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