Nitrogen absorption rate of EAN and NH + 4 was significantly higher than that of NO - 3 in different nitrogen concentrations.

• 结果表明 ；在不同N浓度下 ；小麦对增铵营养和NH+ 4的吸收速率显著高于NO-3 营养 ；且在较高浓度下 ；增铵营养处理具有更强的吸收优势 .