【摘要】 基于北京市水资源缺乏的现状,在9个区县开展雨养玉米节水实验,探讨雨养节水种植模式对玉米节水和产量的影响。实验结果表明,通过综合节水技术的采用,雨养节水种植玉米的耗水量和灌溉量,均小于玉米常规种植的值。而且玉米自身需水量与降水量的耦合度高,雨养玉米产量增加明显,因此具有推广价值。更多还原

【Abstract】 For the lack of the current water resources in Beijing,water-saving rain-fed corn experiment is carried out in nine counties,to explore the affect of the rain-fed corn planting to water conservation and maize yield of corn.The experimental results show that:Through integrated water-saving technologies,water consumption and irrigation volume of rainfed maize,are less han the value of corn with conventional cultivation.The water requirement of maize coupled with high precipitation, and rain-fed corn production increased significantly,so it has the value of being promoted.更多还原