青稞养分吸收特征研究  

Study on Nutrient Absorption Characteristics of Highland Barley

作　　者：陈初红 索朗旦增 索朗多吉 袁成立 田科兴 琼卓玛 CHEN Chuhong;Suolangdanzeng;Suolangduoji;YUAN Chengli;TIAN Kexing;Qiongzhuoma(Lhasa Agricultural Science Institute,Tibet Autonomous Region,Tibet Lhasa 850000,China;Lhasa Agriculture Technology Research Extending Stations,Tibet Lhasa 850000,China;Linzhou County Agricultural Technology Promotion Station,Tibet Linzhou 851600,China;Duilongdeqing District Agricultural Technology Extension Station,Tibet Duilongdeqing 851400,China)

机构地区：[1]西藏自治区拉萨市农业科学研究所,西藏拉萨850000 [2]西藏自治区拉萨市农业技术研究推广站,西藏拉萨850000 [3]西藏自治区拉萨市林周县农业技术推广站,西藏林周851600 [4]西藏自治区拉萨市堆龙德庆区农业技术推广站,西藏堆龙德庆851400

出　　处：《西藏农业科技》2024年第4期12-20,共9页Tibet Journal of Agricultural Sciences

基　　金：2024年拉萨重点科技计划项目:拉萨农田土壤基础地力与养分利用效率协同提升技术研究(LSKJ202422)。

摘　　要：在2008—2023年拉萨市测土配方施肥“3414”田间肥效试验数据基础上,分析了青稞产量、施肥量与收获指数的关系,评价了青稞籽粒养分含量与吸收量、养分内在效率与吨粮养分吸收等青稞养分吸收特征,为更加准确地优化青稞肥料用量,提高肥料利用效率,积极推进化肥减量增效行动,提升耕地质量、提高青稞产量提供了科学的数据支撑。Based on the field fertilizer efficiency test data of“3414”formula fertilization in Lhasa from 2008 to 2023,this paper analyzed the relationship between the yield,fertilizer amount and harvest index of highland barley,and evaluated the nutrient absorption characteristics of highland barley such as grain nutrient content and absorption amount,nutrient internal efficiency and nutrient absorption per ton of grain.This paper provides scientific data support for optimizing the fertilizer amount of highland barley more accurately,improving fertilizer utilization efficiency,actively promoting fertilizer reduction and efficiency improvement action,improving the quality of cultivated land,and increasing the yield of highland barley.

关 键 词：收获指数 养分内在效率 吨粮养分吸收 

分 类 号：S512.3[农业科学—作物学]