三种化学植物生长调节剂对缺水条件下草坪草的影响  

Study of Three Chemical Plant Regulator on Turf-lawn under Drought-stress

作　　者：刘明洋 刘小林[1] 孙晓燕 田志彬 朱秀峰 LIU Ming-yang;LIU Xiao-lin;SUN Xiao-yan;TIAN Zhi-bin;ZHU Xiu-feng(Weifang Engineering Vocational College,Qingzhou Shandong262500;Changle branch of Weifang Tobacco Company,Changle Shandong 262400;Laiwu Tobacco Company,Jinan 271100)

机构地区：[1]潍坊工程职业学院,山东青州262500 [2]潍坊市烟草公司昌乐县公司,山东昌乐262400 [3]莱芜市烟草公司,山东济南271100

出　　处：《潍坊工程职业学院学报》2023年第5期101-108,共8页Journal of Weifang Engineering Vocational College

基　　金：潍坊市科技局科技发展计划资助项目“草坪草化学节水技术的研发与应用模式研究”(2020GX084)。

摘　　要：草坪种植过程中巨大的需水量一直是缺水地区景观草坪快速发展和精细管理中难以逾越的一个障碍。对两种潍坊地区常见草坪草品种早熟禾和高羊茅施用矮壮素、抑芽丹和双氟磺酰草胺三种化学植物生长调节剂,观察草坪在缺水条件下的景观特征变化,确定适于潍坊地区草坪管理的化学节水剂种类和施用模式。结果表明:对定植二年以上的早熟禾或者高羊茅施用抑制生长的化学植物生长调节剂可以有效改善这两种草在缺水条件下的景观特性;在山东潍坊地区对定植二年以上的草坪于每年5月、10月分别施用一次1000~1500g a.i/hm^(2)浓度的抑芽丹可减缓早熟禾和高羊茅的褪绿过程;高浓度的双氟磺酰草胺对高羊茅或初植早熟禾生长有较明显的抑制作用,应该避免使用。The high-water-requirement during lawn planting and following management limits rapid promotion and fine management of landscape lawns in water deficient areas.Field trials were conducted in Weifang area to study the effects of chemical plant growth regulators on turf-lawn for water-saving purposes.The experiment was carried to determine the optimistic application modes of chemical water-saving agents for turf management in Weifang area by applying three chemical plant growth regulators,include chlormequat,maleic hydrazide,and difluorosulfochlor,to two common turf grass varieties in Weifang area,blue grass and tall fescue,and observing their responses in landscape characteristics under drought-stress.The results showed that growth inhibitors applied to blue grass or tall fescues planted for more than two years can effectively improve the landscape characteristics of these two turf grass varieties under water scarcity conditions.In Weifang,Shandong Province,it is recommended to apply maleic hydrazide twice in May and October every year to lawns planted for more than two years at a rate of 1000~1500g a.i./m^(2)to slow down the occurrence of chlorosis in blue grass and tall fescue.Due to the damage caused by difluorosulfochlor at high rate on the growth and landscape characteristics of tall fescue or newly planted bluegrass,difluorosulfochlor should be avoided in newly planted lawns.

关 键 词：草坪草 节水 植物生长调节剂 

分 类 号：S688.4[农业科学—观赏园艺]