新疆农业科学 ›› 2022, Vol. 59 ›› Issue (1): 95-104.DOI: 10.6048/j.issn.1001-4330.2022.01.012

• 园艺特产·植物保护·生理生化 • 上一篇    下一篇

调亏灌溉对滴灌核桃树土壤温度及产量的影响

张纪圆1(), 赵经华1(), 杨文新1, 姜有为1, 廖康2, 哈力旦木·吐尔迪3, 热纳古丽·库尔班3   

  1. 1.新疆农业大学水利与土木工程学院,乌鲁木齐 830052
    2.新疆农业大学林学与园艺学院,乌鲁木齐 830052
    3.且末县自然资源局红枣科技推广中心,新疆且末 841900
  • 收稿日期:2020-12-23 出版日期:2022-01-20 发布日期:2022-02-18
  • 通信作者: 赵经华
  • 作者简介:张纪圆 (1994-),女,河南民权人,硕士研究生,研究方向为灌溉节水,(E-mail) zjy18299736479@126.com
  • 基金资助:
    新疆教育厅高校科研计划(XJEDU2019Y019);新疆农业大学博士后经费项目;水利工程重点学科项目(SLXK2019-01)

Effects of Regulated Deficit Irrigation on Soil Temperature and Yield of Walnut Trees under Drip Irrigation

ZHANG Jiyuan1(), ZHAO Jinghua1(), YANG Wenxin1, JIANG Youwei1, LIAO Kang2, Halidanmu Tuerdi3, Renaguli Kuerban3   

  1. 1. College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
    2. College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
    3. Red Jujube Technology Extension Center, Qiemo County Natural Resources Bureau, Qiemo Xinjiang 841900, China
  • Received:2020-12-23 Online:2022-01-20 Published:2022-02-18
  • Correspondence author: ZHAO Jinghua
  • Supported by:
    University Scientific R & D Program Project of Xinjiang Education Department(XJEDU2019Y019);Postdoctoral Funding Project of Xinjiang Agricultural University;Key Discipline Project of Water Conservancy Engineering(SLXK2019-01)

摘要:

【目的】研究调亏灌溉对干旱区滴灌核桃树土壤温度的影响,分析最有利的灌水模式。【方法】研究3个不同灌水量(正常灌水ETC、轻度缺水75% ETC和中度缺水50% ETC),7个处理不同程度水分亏缺对土壤温度、SPAD值、果实体积和产量的影响。【结果】调亏度越大,土壤温度越高,在调亏的生育期内有增温的效果。油脂转化期(Ⅴ)之前,随着土层深度的增加,土壤温度在降低,表现为5 cm>10 cm>20 cm>30 cm>40 cm。在油脂转化期(Ⅴ)和成熟期(Ⅵ)时,开花坐果期+果实膨大期(Ⅱ + Ⅲ)进行中度缺水土壤温度最高。开花坐果期(Ⅱ)调亏时,灌前与灌后的土壤温度差最小。调亏灌溉促进SPAD值的增加,在开花坐果期(Ⅱ)进行调亏果实体积最大。开花坐果期(Ⅱ)轻度缺水获得最高产量为4 150.70 kg/(hm2),水分利用效率(WUE)最高,达到9.25 kg/(hm2·mm)。【结论】结合土壤温度、果实体积、产量及WUE情况,开花坐果期(Ⅱ)轻度缺水是最有益处的处理。

关键词: 滴灌; 调亏灌溉; 核桃树; 土壤温度; 产量

Abstract:

【Objective】 To explore the effect of regulated deficit irrigation on the soil temperature of walnut trees by drip irrigation in arid areas and determine the most favorable irrigation pattern. 【Methods】 The effects of three different irrigation levels (normal irrigation ETC, mild water deficit 75% ETC, and moderate water shortage 50% ETC) and seven different treatments on soil temperature, SPAD value, fruit volume and yield were studied. 【Results】 The greater the deficit adjustment, the higher the soil temperature, and the more efficient effect of increasing temperature during the growth period of deficit adjustment. Before the fat conversion period(Ⅴ), the soil temperature decreased with the increase of soil depth, which was 5 cm>10 cm> 20 cm> 30 cm> 40 cm. During the period of Ⅴand maturity(Ⅵ), the temperature of soil with moderate water shortage was the highest during the flowering and fruiting stage + fruit expansion stage (Ⅱ + Ⅲ). The difference of soil temperature between pre-irrigation and post-irrigation was the smallest when the deficit was adjusted during periodⅡ. Regulated deficit irrigation promoted the increase of SPAD value, and the volume of regulated deficit fruit was the largest during periodⅡ. The highest yield was 4,150.70 kg/hm 2 at light water shortage during Ⅱ period, and the water use efficiency (WUE)was the highest, reaching 9.25 kg/(hm 2·mm). 【Conclusion】 Considering soil temperature, fruit volume, yield, and WUE, mild water shortage during periodⅡis the most beneficial treatment.

Key words: drip irrigation; regulated deficit irrigation; walnut tree; soil temperature; yield

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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