文章摘要
刘战东, 张凯, 黄超, 孙景生.不同耕作和灌溉方式对玉米光合特性的影响[J].水土保持学报,2019,33(4):213~220
不同耕作和灌溉方式对玉米光合特性的影响
Effects of Different Tillage and Irrigation Methods on Photosynthetic Characteristics of Maize
投稿时间:2019-01-20  
DOI:10.13870/j.cnki.stbcxb.2019.04.030
中文关键词: 深松  灌溉方式  光合作用  叶绿素荧光特性  玉米
英文关键词: subsoiling  irrigation  photosynthesis  chlorophyll fluorescence characteristics  maize
基金项目:公益性行业(农业)科研专项(201503117);国家自然科学基金项目(51309226);国家现代农业产业技术体系(CARS-02-14)
作者单位E-mail
刘战东, 张凯, 黄超, 孙景生 中国农业科学院农田灌溉研究所农业部作物需水与调控重点开放实验室, 河南 新乡 453002 jshsun623@163.com 
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中文摘要:
      以旋耕畦灌(CK)为对照,探究不同耕作和灌溉方式处理夏深松畦灌(XS35)、秋深松畦灌(QS35)、秋深松微喷灌(QS35SI)和秋深松滴灌(QS35DI)对玉米光合特性的影响,以确定深松耕下的合理灌溉方式。结果表明:不同耕作方式下,QS35处理LAI、叶绿素相对含量、净光合速率、气孔导度、胞间CO2浓度、蒸腾速率、产量较CK分别提高20.7%,6.4%,17.8%,36.9%,40.1%,18.9%,9.6%,花前和花后Fv/Fm均无显著差异,花前和花后qP、ETR、Y(Ⅱ)在不同光照强度下表现为QS35 > XS35 > CK,NPQ在花后表现为QS35 < XS35 < CK;不同灌溉方式下,QS35SI处理LAI、叶绿素相对含量、净光合速率、气孔导度、胞间CO2浓度、蒸腾速率、产量较CK分别提高23.8%,11.2%,37.9%,69.1%,79.2%,38.7%,7.5%,花前和花后Fv/Fm均无显著差异,花前和花后qP、ETR、Y(Ⅱ)在不同光照强度下表现为QS35SI > QS35DI > QS35 > CK,花前和花后NPQ表现为QS35SI < QS35DI < QS35 < CK。秋深松结合微喷灌能促进玉米光合作用,提高产量。
英文摘要:
      Taking rotary tillage combined with border irrigation as the control (CK), the effects of different tillage methods, including autumn subsoiling (QS35) and summer subsoiling (XS35) under border irrigation, and different irrigation methods, including autumn subsoiling with border irrigation (QS35), autumn subsoiling with microspray irrigation (QS35SI) and autumn subsoiling with drip irrigation (QS35DI), on photosynthetic characteristics of maize were studied to determine the rational irrigation methods under subsoiling. The results showed that the LAI, chlorophyll relative content, net photosynthetic rate, stomatal conductance, intercellular CO2 concentration, transpiration rate and yield of QS35 were 20.7%, 6.4%, 17.8%, 36.9%, 40.1%, 18.9%, 9.6% higher than CK under different tillage modes, respectively. There were no significant differences in Fv/Fm before and after anthesis, the qP, ETR, Y(Ⅱ) before and after an thesis were QS35>XS35>CK, while NPQ was QS352 concentration, transpiration rate and yield of QS35 SI treatment were 23.8%, 11.2%, 37.9%, 69.1%, 79.2%, 38.7%, 7.5% higher than CK, respectively. There were no significant differences in Fv/Fm before and after flowering, the qP, ETR, Y(Ⅱ) before and after flowering were QS35 SI > QS35 DI > QS35 > CK, while NPQ was QS35 SI
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