摘要
在宁夏中部干旱带年平均降雨量350 mm的限额灌溉区,以滴灌玉米种植为对象,集成覆膜微集雨、土壤保水、抑制蒸腾等技术,开展降水资源就地高效利用试验研究,通过对试验区玉米在不同模式下产量及水分生产效率的对比分析,从而提出深翻20～40 cm+半覆膜膜侧种植+保水剂(秦威加力7.5 kg/hm2)+喷施抗蒸腾剂(万代红1.05 L/hm2)为宁夏中部干旱带限额灌溉区适宜的玉米降水资源高效利用模式,产量达到13 785 kg/hm2,水分利用效率达到4.22 kg/m3。
Taking corn plant as the object, integrating the technologies of micro-collection rainwater, soil water retention and inhibit transpiration on corn, this paper carried out the experiment on efficient utiliza- tion of rainfall resources in the arid area of middle Ningxia where the annual average rain is 350ram. By contrastive analysis of crop yield and efficiency of water in different modes of rainfall efficient utilization, it put forward appropriate rainfall resources utilization mode of corn with supplementary irrigation in arid area middle Ningxia witch is that turn the soil 20 to 40 cm, half coated , water retention agent （ Qinweijia- li 7.5 kg/hm2） , inhibit transpiration agent （Wandaihong 1. 05 L/hm2）. The crop yield reached 13785kg/hm2 ,the utilization efficiency reached 4.22kg/m3.
出处
《水资源与水工程学报》
2013年第4期119-122,共4页
Journal of Water Resources and Water Engineering
基金
水利部公益性行业专项经费项目(201001063)
关键词
限额灌溉
降水资源
水资源高效利用
玉米
supplementary irrigation
rainfall resources
utilization of water resources
corn
作者简介
张红玲（1976-），女，宁夏人，工程师，硕士，研究方向为节水灌溉技术研究。
