摘要
通过典型案例的调查分析,阐述了与苜蓿Medicagosativa越冬性有关,但又不太被人重视的5个问题:苜蓿品种、播种期、生境、田间冬春季管理、刈割制度。同时也讨论了苜蓿根茎受冻后的4种表现:根茎未受冻,能正常返青、根茎上端受冻,推迟返青、根茎全部受冻,不能返青、根茎和根受冻,不能返青。
Through analysis of typical case research, five areas related to alfalfa winter survival but not given a lot of recognition are set forth, including variety, sowing time, habitat, field management during winter and spring, and cutting system. This paper also discusses four alfalfa rhizome manifestations after winter frosting, namely, no rhizome injury; rhizome crown injury with regrowth delayed; complete rhizomes harmed with no regrowth; and rhizomes and roots harmed with no regrowth.
出处
《草业科学》
CAS
CSCD
2004年第3期21-25,共5页
Pratacultural Science
基金
948"项目(202099)
"十五"攻关奶业专项"优质饲草高效生产关键技术研究与产业化示范"(2002BA51803 2)课题资助
关键词
紫花苜蓿
越冬性
冻害
越冬率
alfalfa
winter survival
winter injury
winter survival rate
