Xinjiang Agricultural Sciences ›› 2025, Vol. 62 ›› Issue (1): 53-59.DOI: 10.6048/j.issn.1001-4330.2025.01.007

• Special volume for green,yield increasing,quality improving and efficiency improving technologies for major grain crops in Xinjing • Previous Articles     Next Articles

Effects of different urea and application methods on photosynthetic characteristics, yield formation and nitrogen use efficiency of winter wheat under drip irrigation

LI Jie1,2(), XU Qijiang2,3, ZHANG Yongqiang2,3(), XU Wenxiu1(), LYU Xiaoqing4, CHEN Chuanxin2,3, NIE Shihui2,3, LEI Junjie2,3   

  1. 1. College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China
    2. Key Laboratory of Desert-Oasis Crop Physiology,Ecology and Cultivation,MOARA,Urumqi 830091,China
    3. Research Institute of Food Crops, Xinjiang Academy of Agricultural Science, Urumqi 830091,China
    4. Manas Agricultural Technology Extension Center,Manas Xinjiang 832200,China
  • Received:2024-07-20 Online:2025-01-20 Published:2025-03-11
  • Correspondence author: ZHANG Yongqiang, XU Wenxiu
  • Supported by:
    Xinjiang Uygur Autonomous Region Key R&D Program Projects(2021B02002-1);Xinjiang Uygur Autonomous Region Key R&D Program Projects(2022B02001-3);Xinjiang Uygur Autonomous Region "Tianshan Talent" Training Program(2023TSYCCX0013);Xinjiang Uygur Autonomous Region "Tianshan Talent" Training Program(2023TSYCLJ0009);Natural Science Foundation of China project(31960379);Natural Science Foundation of China project(51879267);Earmarked Fund of CARS(CARS-03-88);Xinjiang Uygur Autonomous Region wheat industry technology system project(XJARS-01-06);Xinjiang Uygur Autonomous Region wheat industry technology system project(XJARS-01-19)

不同类型尿素及施用方式对滴灌冬小麦产量形成和氮肥利用效率的影响

李杰1,2(), 徐其江2,3, 张永强2,3(), 徐文修1(), 吕晓庆4, 陈传信2,3, 聂石辉2,3, 雷钧杰2,3   

  1. 1.新疆农业大学农学院,乌鲁木齐 830052
    2.农业农村部荒漠绿洲作物生理生态与耕作重点实验室,乌鲁木齐 830091
    3.新疆农业科学院粮食作物研究所,乌鲁木齐 830091
    4.玛纳斯县农业技术推广中心,新疆玛纳斯 832200
  • 通讯作者: 张永强,徐文修
  • 作者简介:李杰(2000-),男,新疆哈密人,硕士研究生,研究方向为小麦高产栽培生理,(E-mail)leejie512@163.com
  • 基金资助:
    新疆维吾尔自治区重点研发计划项目(2021B02002-1);新疆维吾尔自治区重点研发计划项目(2022B02001-3);新疆维吾尔自治区“天山英才”人才培养计划(2023TSYCCX0013);新疆维吾尔自治区“天山英才”人才培养计划(2023TSYCLJ0009);国家自然科学基金项目(31960379);国家自然科学基金项目(51879267);国家小麦产业技术体系乌鲁木齐综合试验站(CARS-03-88);新疆维吾尔自治区小麦产业技术体系项目(XJARS-01-06);新疆维吾尔自治区小麦产业技术体系项目(XJARS-01-19)

Abstract:

【Objective】 The aim of this study is to investigate the effects of different urea and application methods on photosynthetic characteristics, dry matter production, yield and nitrogen use efficiency of winter wheat under drip irrigation. 【Methods】 From 2021 to 2022, under the conditions of drip irrigation in the field, five treatments were set up: no urea (F0), ordinary urea (F1), humate urea (F2), controlled release urea single base application (F3) and controlled release urea fractional application (F4). The changes of yield formation and nitrogen use efficiency of winter wheat under different drip irrigation treatments were studied. 【Results】 The results showed that in the test period, the SPAD value of winter wheat leaves under F4 treatment was the highest, and the net photosynthetic rate (Pn), transpiration rate (Tr) and stomatal conductance (Gs) were also higher than those under other treatments, while the intercellular CO2 concentration was the lowest. Dry matter accumulation per plant of each treatment was F4>F2>F3>F1>F0 at flowering stage and filling stage. The highest yield of drip irrigation under different treatments was 9,210.95 kg/hm2 under F4 treatment, which was 21.64%, 12.52%, 6.87% and 7.77% higher than that under F0, F1, F2 and F3 treatments, respectively. The maximum nitrogen fertilizer utilization rate (11.29 kg /kg) and nitrogen partial productivity (40.71 kg /kg) of winter wheat were obtained under F4 treatment. 【Conclusion】 The comprehensive analysis shows that under the experimental conditions, controlled release urea fractional application F4 treatment of winter wheat leaves has better photosynthetic indexes and higher grain yield.

Key words: urea; winter wheat; photosynthetic characteristics; yield; nitrogen use efficiency

摘要:

【目的】 探究不同尿素及施用方式对滴灌冬小麦光合特性、干物质生产、产量及氮肥利用效率的影响。【方法】 于2021~2022年在大田滴灌条件下,设置不施尿素(F0)、普通尿素(F1)、腐殖酸尿素(F2)、控释尿素一次基施(F3)、控释尿素分次施用(F4)共5个处理,研究不同处理滴灌冬小麦产量形成和氮肥利用效率的变化规律。【结果】 F4处理的冬小麦叶片SPAD值在各测定期均表现为最高,且在拔节期、开花期和灌浆期的净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)亦均高于其它处理,其细胞间CO2浓度则最低。各处理在开花期和灌浆期单株干物质积累量均呈F4>F2>F3>F1>F0的变化规律。不同处理滴灌产量以F4处理最高,为9 210.95 kg/hm2,分别较F0、F1、F2、F3处理产量提高了21.64%、12.52%、8.12%和6.52%;F4 处理下冬小麦的氮肥农学利用率(7.28 kg /kg)、氮肥偏生产力(40.93 kg/kg)均最大。【结论】 控释尿素分次施用F4处理冬小麦叶片各项光合指标表现较好,籽粒产量较高。

关键词: 尿素, 冬小麦, 光合特性, 产量, 氮肥利用效率

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