中国草地学报2025，Vol.47Issue(7)：61-69,9.DOI:10.16742/j.zgcdxb.20240361
叶面喷施Zn肥对赖草生长、品质及Zn富集的影响
Effect of Foliar Application of Zinc Fertilizer on Growth,Quality and Zinc Enrichment of Leymus secalinus
摘要
Abstract
This study investigated the effects of different zinc(Zn)fertilizer types of on the growth,yield,quality,and Zn enrichment of Leymus secalinus,aiming to identify optimal foliar fertilization proto-cols.Potted L.secalinus were treated with inorganic(ZnSO4-7H2O)and chelated(EDTA-Zn,referred to as E-Zn)fertilizers at Zn concentrations of 0.2,0.4,and 0.8 mg/g.Water served as the control(CK).A comprehensive analysis of L.secalinus indicators was conducted using the grey correlation method to iden-tify the most suitable micro-fertilizer form and concentration for improving trace element content and over-all quality.The results showed that foliar application of appropriate concentrations of ZnSO4 and E-Zn sig-nificantly promoted the plant height and stem thickness of L.secalinus,leading to increased biomass.Both fertilizer types significantly increased contents of crude protein,ether extract and Zn(P<0.05),while sig-nificantly reducing acidic detergent fiber and neutral detergent fiber(P<0.05),thereby improving the qual-ity of L.secalinus.Notably,the absorption efficiency of Zn from E-Zn was significantly superior to that from ZnSO4 at the same concentration.The comprehensive gray correlation analysis indicated that foliar spraying with E-Zn consistently outperformed ZnSO4 across different concentrations.The optimal L.seca-linus yield and quality were achieved at an E-Zn concentration of 0.4 mg/g.关键词
赖草/产量/品质/Zn元素富集/微量元素肥料/综合评价Key words
Leymus secalinus/Yield/Quality/Zn enrichment/Trace element fertilizer/Comprehen-sive evaluation分类
农业科技引用本文复制引用
廖明旺,许辰雨,秦士利,张倩,张坤,杜利霞..叶面喷施Zn肥对赖草生长、品质及Zn富集的影响[J].中国草地学报,2025,47(7):61-69,9.基金项目
山西省重点研发计划(农业领域)(202102140601006) （农业领域）
赖草种质资源核心库构建及抗盐碱机制解析(202403021221082) （202403021221082）
农业农村部饲草高效生产模式创新重点实验室 （）
