【摘要】 于 1994～ 1999年在中国农业大学杂草研究室完成此项研究 ,目的是确立在恶劣环境中草坪除草的策略 .在早熟禾 (Poaspp .)、黑麦草 (Loliumspp .)和高羊茅 (Festucaspp .) 3种草坪草生长至 (10± 1)cm时设置高温干旱胁迫 ,7d内生长高度增长继续 ,而 7d后植株的生长量下降 .在狗尾草密度 10 0～ 2 0 0株 /m2 范围内 ,草坪草生长高度增长的幅度约是其它密度时的 2倍 .狗尾草密度 10 0～ 15 0株 /m2 范围内 ,3种草坪草在恶劣环境中高度生长增加达到极值 .三种草坪草的生长量在狗尾草密度 10 0～ 2 0 0株 /m2 范围内 ,降幅是其它密度时的 1/ 2 ,15 0株 /m2 密度中的草坪草降幅最低 .狗尾草在一定密度下对草坪草抵抗恶劣环境有协助作用 .更多还原

【Abstract】 The study was conducted in weed science section of China Agri. Univ. from 1994 to 1999, in order to get management strategy of weed in turf in an unfavorable temperature and water condition. The results show that, no matter the height of turf was higher or lower than or as high as that of green bristlegrass, the heights of the three turf which were 10cm or so increased and their output reduced after getting to the tempterature during 26～37 ℃ and water less than 40% for 7?d,. The increase degree of these three turf heights in the density of 100～200 plants per square meter of green bristlegrass is two times as that in others scopes of green bristlegrass density, that the output decrease degree of these three turf was less half weight at the density of 150 plants per square meter of this weed planted at same place with turf together.更多还原