Two-cut system suggested for tall wheatgrass to balance herbage yield and quality in the coastal saline–alkaline land around the Bohai Sea
作者机构：Key Laboratory of Seed InnovationInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina College of AgricultureYangtze UniversityJingzhouHubeiChina School of Agricultural SciencesJiangxi Agricultural UniversityNanchangJiangxiChina Dongying Modern Agricultural Demonstration Zone Management CenterDongyingShandongChina
出 版 物：《Grassland Research》 (草地研究（英文）)
年 卷 期：2024年第3卷第2期
页 面：132-146页
学科分类：090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 09[农学] 0903[农学-农业资源与环境]
基 金：Strategic Priority Research Program of the Chinese Academy of Sciences Grant/Award Number:XDA26040105
主 题：Coastal Grass Belt Elytrigia elongata saline and alkaline soils tall wheatgrass Thinopyrum ponticum
摘 要：Background:Tall wheatgrass is a perennial salt-tolerant bunchgrass,which is a promising candidate for establishing a“Coastal Grass Beltin China,particularly in the coastal saline–alkaline soils surrounding the Bohai ***:Seven harvesting treatments were performed to explore the optimal harvesting time and frequency for tall wheatgrass in coastal *** dry matter yield(DMY)and forage nutritional values were investigated for each *** correlation between harvesting time and frequency thereof among the investigated traits was also ***:The results showed that the two-cut on June 18 and October 29 produced the highest *** two-cut on May 26 and October 29 produced a relatively high crude protein(CP)*** DMY,contents of neutral detergent fiber(NDF),acid detergent fiber(ADF),and crude cellulose(CC)as well as CP yield were positively correlated to plant height,while the CP content and the relative feed value(RFV)were negatively correlated to plant *** accumulating growing degree days,accumulated precipitation,and sunshine duration were positively correlated with plant height,DMY,contents of NDF,ADF,and CC as well as CP yield,but negatively correlated with CP content and RFV for the first ***:The two-cut treatment at the end of May and October may be suitable for tall wheatgrass in the“Coastal Grass Belttargeted area.
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