为提升甘南青稞产业种源支撑基础，实现青稞新育品种的增产增收潜力，以青稞新品种甘青11号为试材，在甘南高寒阴湿区旱川地进行了不同施肥水平与播量对其生长及产量的影响试验。结果表明，施肥水平为尿素150 kg/hm2、磷酸二铵225 kg/hm2，播量为192.0 kg/hm2时，甘青11号青稞折合产量最高，为3 720 kg/hm2；施肥水平为尿素150 kg/hm2、磷酸二铵300 kg/hm2，播量分别为223.5、256.5 kg/hm2时，甘青11号青稞折合产量较高，分别为3 580、3 510 kg/hm2。由此可见，在施肥水平为尿素150 kg/hm2、磷酸二铵225～300 kg/hm2，播量为192.0～256.5 kg/hm2时，青稞产量高、综合农艺性状优良。综合考虑，该施肥水平和播量为青稞在甘南高寒阴湿区种植适宜的肥料配比和播量。

In order to improve the provenance support of the highland barley industry and realize the potential in production increase and income increase of new highland barley varieties, a new highland barley variety Ganqing 11 was used to study the effects of different fertilization schemes and sowing rates on the growth and yield of highland barley in dryland of Gannan alpine humid region. The results showed that highest yield i.e., 3 720 kg/ha, was obtained in the new highland barley variety Ganqing 11 under the fertilization scheme of 150 kg/ha of urea and 225 kg/ha of diammonium phosphate, and a sowing rate of 192 kg/ha, followed by treatments under the fertilization scheme of 150 kg/ha of urea and 300 kg/ha of diammonium phosphate with different sowing rates of 223.5 and 256.5 kg/ha, which showed yield data of 3 580 and 3 510 kg/ha, respectively. It was concluded that high yield and ideal comprehensive agronomic characters of this variety in the study area could be obtained under the fertilization scheme of 150 kg/ha of urea and 225 to 300 kg/ha of diammonium phosphate, and sowing rate of 192 to 256.5 kg/ha, and fertilizer scheme and sowing rates recommended above were considered suitable for the production of high land barley in the Gannan alpine humid region.

S512.3；S147.2

国家现代农业产业技术体系专项资金(CARS-05)；甘南州科技计划项目资金(2022JY1NC001)。