The structure of fertilizers was studied by Scaning Electronic Microscopy (SEM), and the nutrient release characteristics were studied using water dissolution rate method and soil column leaching method. [Result] The 24 hours N water dissolution rates of
The structure of fertilizers was studied by Scaning Electronic Microscopy (SEM), and the nutrient release characteristics were studied using water dissolution rate method and soil column leaching method. [Result] The 24 hours N water dissolution rates of
［方法］以不同类型和吸水倍率的高吸水性树脂为包膜材料，以大颗粒尿素和改性矿物包膜尿素为原料肥料，研制出高吸水性树脂单层包膜尿素、高吸水性树脂复式包膜尿素系列产品，利用电子扫描电镜研究了其结构特征，并以水中溶出率法和模拟土柱淋溶法研究其养分释放特性。