山东农业大学学报（自然科学版）2025，Vol.56Issue(2)：226-235,10.DOI:10.3969/j.issn.1000-2324.2025.02.005
花后喷施不同浓度叶面肥对小麦产量和氮素吸收利用的影响
Different Concentrations of Foliar Fertilizer Spraying after Anthesis on Wheat Yield and Nitrogen Uptake and Utilization
摘要
Abstract
Taking the cultivar Lufeng 128 and Jimai 44 as experimental material,six foliar fertilizer concentration treatments of 0,1,2,3,4,5 ml·L-1(represented by CK,T1,T2,T3,T4 and T5,respectively)are set up in the experimental station of Xinjiang Lufeng Agricultural Science and Technology Development Co.,Ltd.in Yingjisha County,Kashgar City from 2022 to 2023.The effects of different concentrations of foliar fertilizer spraying after anthesis on wheat yield and nitrogen uptake and utilization are studied.The results show that compared with CK,spraying foliar fertilizers after anthesis increase the dry matter accumulation at maturity and its distribution in grains by promoting the dry matter production after anthesis and its contribution rate to grains,thereby enhancing the thousand-grain weight and yield.Meanwhile,through increasing the nitrogen uptake after anthesis and its contribution rate to grain nitrogen,the grain nitrogen accumulation and the nitrogen accumulation at maturity are raised,thereby improving the nitrogen uptake efficiency and nitrogen use efficiency(NUE).The spraying effects of foliar fertilizers vary with different concentrations.Under the T3 and T4 treatments,the increment in wheat yield(12.1%-12.5%,12.7%-13.1%)and NUE(12.12%-12.51%,12.74%-13.09%)are the largest.However,excessive spraying concentrations of foliar fertilizer could reduce the harvest index,grain weight,nitrogen harvest index and nitrogen utilization efficiency,thereby reducing the yield and NUE.The model analysis indicate that a spraying concentration of 3.41-3.57 mL·L-1 of Heizefeng foliar fertilizer achieves the optimal yield and efficiency improvement for wheat in production.The conclusion provides a reference for enriching the technology of"spraying once for three protections"for wheat production and enhancing the yield and NUE of winter wheat in southern Xinjiang.关键词
冬小麦/叶面肥/干物质/氮素/产量Key words
Winter wheat/foliar fertilizer/dry matter/nitrogen/yield分类
农业科技引用本文复制引用
李梦宇,魏迎春,葛福柱,王芃,徐绍栋,贾中立,代兴龙..花后喷施不同浓度叶面肥对小麦产量和氮素吸收利用的影响[J].山东农业大学学报（自然科学版）,2025,56(2):226-235,10.基金项目
国家重点研发计划(2023YFD2300203) （2023YFD2300203）
中央引导地方科技发展专项资金项目(YDZX2022130) （YDZX2022130）
兵团中央引导地方科技发展资金项目(2024YD020) （2024YD020）
山东省高等学校"青创团队计划"项目(2022KJ242) （2022KJ242）
