负压控水下不同株型玉米水分利用效率和产量的-ingentaconnect.pdfVIP

See discussions, stats, and author profiles for this publication at: /publication/286310617 Experiment on water use efficiency and yield of different plant type of potted maize under negative pressure water... Article in ongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering · August 2014 DOI: 10.3969/j.issn.1002-6819.2014.15.020 CITATIO S READS 2 12 5 authors, including: Xuzhang Xue ational Engineering Research Center for Information Technology in Agriculture 57 PUBLICATIO S 325 CITATIO S SEE PROFILE Some of the authors of this publication are also working on these related projects: Measurement of Evapotranspiration of Crops using Weighing Lysimeters View project Fertigation technologies and artificial light application in agriculture View project All content following this page was uploaded by Xuzhang Xue on 11 March 2017. The user has requested enhancement of the downloaded file. 第 30 卷 第 15 期 农 业 工 程 学 报 Vol.30 No.15 148 2014 年 8 月 Transactions of the Chinese Society of Agricultural Engineering Aug. 2014 负压控水下不同株型玉米水分利用效率和产量的盆栽试验 1,2 1 2 ※ 2 2 许高平 , 王 璞 , 薛绪掌 , 张 芳 , 陈 菲 （1.中国农业大学农学与生物技术学院，北京 100193 ；2. 国家农业智能装备技术研究中心，北京 100097 ） 摘 要：干旱胁迫研究中的难点之一在于减少土壤水分波动对试验结果的影响。该研究采用负压供水盆栽装置， 通过调节供水负压值精确控制土壤含水率，模拟土壤干旱胁迫，研究比较 3 种胁迫程度（无胁迫 CK、轻度和重 度胁迫）、2 个胁迫时期（苗期、吐丝期）对不同株型玉米（小株型 CF1002 和大株型 CF3330 ）的水分利用效率、 生物量和产量的影响，旨在分析 2 种株型夏玉米对不同时期、程度干旱胁迫的响应差异。结果表明：随着苗期胁 迫程度加重，CF1002 的水分利用效率（water use efficiency ，WUE ）从3.24 增至 3.43，而 CF3