双季稻绿肥紫云英品种的适应性筛选

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引用格式：，等.双季稻绿肥紫云英品种的适应性筛选[J].湖南农业科学，2025（6）：21-25.DOI：10.16498/j.cnki.hnnykx.2025.006.004

中图分类号： S541+.3 文献标识码：A 文章编号：1006-060X（2025）06-0021-05

Screening of Suitable Astragalus sinicus L.Varieties as Green Manure in Double-Cropping Rice Systems

WANG Yu1，HUMing-yong²，LI Peng1，LU Yan-hong1，LIAO Yu-lin1，NIE Jun1，ZHANG Jiang-lin1 （1.HunanIstituteofAgriculturalSolndEconromentCangsh4，C;2.CangshAgriculturalThnologExesion Center，Changsha ，C）

Abstract：This study screeed thesuitable Astragalus sinicusL.varieties as green manure in double-cropping ricesystems， aiming to increase therice yield，enhance the soil fertility，and promote new variety breeding.Seven local varieties of A sinicus werevaluatedinofgrooicaitsohodfrshassieldedielddtrittalabotal totalphosphorusandtotalpotass）ontentesultsmostratedtatalltstedatisebitedalyaturityihth growth periodsrangingfrom181dto191d.ThevarietyNo.4hadtheearliestfullbloomingstageandthehighestfreshgrass yield （2号 （34799kg/hm2） ，followedbyvarietiesNo.5，No.2，No.6，andNo.3.No.6hadthehighestcontentofnutrientsamongalltested varieties，foowdyNo4ndothrietideloestcarbotoirogeati1.9）.Nocheteigtsedyiel （987kg/hm2） ，followedbyNo.4，No.5，andNo.6.Iconclusion，indouble-croppngricesystems，'Xiangzi4' （No.4），'Minzi7'（o.5）， and 'Wanzi 1' （No. 6） were recommended as green manure varieties.

Keywords：AstragalussinicusL.;variety;freshgrassyield;seedyield

中国是世界上最大的水稻生产国，水稻种植面积常年稳定在3000万 hm2 左右[1-2]。（剩余7077字）