安徽农业科学2025，Vol.53Issue(7)：15-18,4.DOI:10.3969/j.issn.0517-6611.2025.07.004
河套灌区向日葵种植行距密度效应研究
Research on the Effect of Row Spacing Density of Sunflower Planting in Hetao Irrigation Area
摘要
Abstract
[Objective]To find out the reasonable planting spacing and density of sunflower in Hetao irrigation area.[Method]A two-factor(row spacing and density),three-level split-zone experiment was set up to investigate the effects of different planting spacing and density on sunflower yield,yield composition,agronomic traits,seed traits and other factors.[Result]The treatments of row expansion and density re-duction had no effect on sunflower fertility.At the same row spacing level,as planting density increased,sunflower plant height increased,disc diameter decreased,and single disc grain weight,100-grain weight,seed length and width decreased.At the same density level,sunflow-er plant height increased as plant spacing decreased with increasing large row spacing.At the same density level,R2 treatment(large row spacing of 1.1m)had the highest single disc grain weight and better seed commerciality,with R2D2 treatment showing the best economic per-formance.[Conclusion]The sunflower planted with the highest yield should be grown with a large row spacing of 106 cm,a small row spacing of 40 cm,and a density of 25 132 plants/hm2(plant spacing of 55 cm),which has the best overall performance in terms of yield and its com-ponents,agronomic traits,cost inputs,and economic benefits,and is suitable for large-scale promotion in Hetao irrigation area.关键词
向日葵/行距/密度/产量/经济效益Key words
Sunflower/Row spacing/Density/Yield/Economic efficiency分类
农业科技引用本文复制引用
李彬瑞,田冬生,张婷婷,王瑞珍,杨晶,仲生柱,刘贵,赵志伟,靳剑辉,赵斌..河套灌区向日葵种植行距密度效应研究[J].安徽农业科学,2025,53(7):15-18,4.基金项目
国家特色油料产业技术体系(CARS-14). （CARS-14）
