高、低产冬枣园叶片营养元素年动态变化探究  

Annual dynamic changes of leaf nutrient elements in high and low yield Dongzao orchards

作　　者：文昊 任晓琴 杨静慧 李冰 张超 王兴 Wen Hao;Ren Xiaoqin;Yang Jinghui;Li Bing;Zhang Chao;Wang Xing(College of Horticulture and Landscape,Tianjin Agricultural University,Tianjin 300392,China;Institute of Resources and Environment,Tianjin Academy of Agricultural Sciences,Tianjin 300384,China;Tianjin Shuofang Green Technology Development Co.Ltd.,Tianjin 300384,China;Direct office of Tianjin Highway Bureau,Tianjin 300074,China)

机构地区：[1]天津农学院园艺园林学院,天津300392 [2]天津市农业科学院资源环境研究所,天津300384 [3]天津朔方绿色科技发展有限公司,天津300384 [4]天津市公路局直属处,天津300074

出　　处：《天津农学院学报》2023年第4期12-16,共5页Journal of Tianjin Agricultural University

基　　金：天津市林果现代农业产业技术体系创新团队项目(ITTFPRS2018002);天津市科技局项目(20ZYCGSN00290);天津农科院青年科研人员创新研究与实验项目(201919);天津市研究生科研创新型项目(2019XY004,2019XY005)。

摘　　要：为了测定不同冬枣园(高产园和低产园)各个物候期叶片中营养元素含量的动态变化,以天津2个冬枣园的冬枣为试材,探究冬枣物候期营养元素动态变化趋势。结果表明,叶片中氮、磷元素含量呈降低趋势,钾、钙、镁、铁、锰、硼元素含量呈上升趋势,且高产园除镁、锰以外营养元素年平均含量均高于低产园。研究结果表明,在冬枣园的生产管理中,可以通过叶片喷施的方法补充营养,为冬枣的营养诊断和合理施肥提供理论依据。In order to determine the dynamic changes of nutrient element content in leaves of different winter jujube orchards(high-yield orchard and low-yield orchard)in each phenological period,and the dynamic trend of nutrient elements in Tianjin Dongzao in each phenological period was explored.The results showed that the contents of nitrogen and phosphorus in the leaves showed a decreasing trend,and the contents of potassium,calcium,magnesium,iron,manganese,and boron showed an increasing trend.The annual average content of nutrient elements except magnesium and manganese in high-yield orchards was higher than that in low-yield orchards.The research results showed that in the production and management of winter jujube orchards,nutrient can be supplemented by spraying leaves,which provide theoretical basis for the nutritional diagnosis and reasonable fertilization of winter jujube.

关 键 词：冬枣 叶片 物候期 营养元素 动态 

分 类 号：S626[农业科学—园艺学]