摘要
俄罗斯杂花苜蓿2001年从俄罗斯赤塔州引进后，在海拉尔东山呼伦贝尔学院试验地，经过6年的引种栽培试验（2001—2006年）。结果表明，该品种分枝能力强，根系发达，主根入土深，播种当年主根为60cm，侧根3—5条，第2年主根深达110cm，分枝能力和根系长度均与植株密度有密切关系，密度大分枝较小，侧根少，主根入土深；耐寒性较强，越冬率高，越冬率达98.4%；抗旱性较强，土壤含水量大于5％时，植株能正常生长，含水量2％～5％时，植株生长缓慢，植株下部出现枯黄现象，含水量低于2％，植株枯萎，根系不死；正常年份年干草产量可达3600～5600kg／hm^2，适合呼伦贝尔地区推广种植。
The Russian variegated alfalfa was introduced in 2001 and gown in Hailaer from 2001 to 2006. The result indicated that the root developing and tillering ability was quite high. Its taproot could reach 60 cm with 3 to 5 lateral roots in the first year and 110 cm in the second year. The shooting ability and the root length were related to the plant density. If the plant density was low the taproot would reach the deep soil with less lateral roots. It also shown high cold resistance and over-wintering rate （98. 4%）. The drought resistance was strong as well and could grow with the soil water content lower than 5% and wilt while the soil water content was from 2% to 5%. In ordinary year,its yield could reach 3 600 to 5 600 kg per hectare.
出处
《草原与草坪》
CAS
2008年第3期52-55,共4页
Grassland and Turf
关键词
杂花苜蓿
栽培试验
抗逆性
产草量
variegate alfalfa
cultivation
stress resistance
yield
作者简介
吕绪清（1958-），男，山东阳谷人，硕士，畜牧师。
吕新龙为通讯作者。
