摘要： 在北京郊区平原轻壤质潮土类土壤上研究了氮、磷、水三因素的交互作用，结果表明，氮、磷、水对小麦增产的作用顺序为水>氮>磷。肥水之间存在交互作用，但肥料对水的影响较小，而水对肥料的影响则较大。在氮磷两种肥料之间，水和磷的交互作用大于水和氮。

关键词: 小麦, 肥水联合效应, 交互作用

Abstract: The interaction among water, nitrogen and phosphorus was studied in light loam meadow soil on the Beijing suburb plain. The results indicated that the most important factor is water, followed by nitrogen and phosphorus in increasing wheat yield.There were interactions between fertilizers and water. Water was less affected by fertilizers,while fertilizers were more affected by water. The interaction between water and phosporus was bigger than that between water and nitrogen.

Key words: Wheat, Effect of combining water and fertilizers, Interaction

中图分类号: 

• S512.1