【摘要】 水肥是作物生长发育中互相紧密联系、彼此制约的两个因子。随着全球气候变暖和经济社会发展,水资源供应日趋紧张。另一方面,不合理或过量的氮肥施用造成的地下水污染、温室气体排放加剧、土壤酸化等环境问题日益突出。在此背景下,如何通过水肥联合调控实现作物水肥利用效率的协同提升受到国内外学者的广泛关注。玉米是典型的耗水量大、需氮量多的作物。就水氮互作对玉米叶面积指数(LAI)、干物质积累、根系生长、光合特性、产量和水氮利用效率的影响研究现状进行综述,并对水氮互作研究中存在的问题及需要进一步研究的方向进行分析和讨论。更多还原

【Abstract】 Water,fertilizer and their interaction play a vital role for determining growth and development of crops,and both of them are closely related and influenced by each other. With the global warming and the social and economic development,the available of freshwater source is decline. Moreover,unscientific or overuse of nitrogen fertilizer induces series of environmental issues,including groundwater pollution,greenhouse gas emission and soil acidification. In this regard,how to use the combined regulation measures of water and fertilizer to achieve the synergistic improvement of water and fertilizer utilization efficiency for crop have received widely attention from home and abroad. Maize is one kind of the typical crops,its growth requires a lot of water and nitrogen fertilizer. Therefore,in this review,the research process of the coupling effects of water and nitrogen on leaf area index(LAI),dry matter accumulation,root growth,photosynthetic characteristics,yield and water and nitrogen utilization efficiency of maize were summarized. Moreover,the issues in the interaction effects of water and nitrogen were analyzed and discussed,and the direction to be further studied was figured out.更多还原