摘要
以燕麦(Avena sativa)永久444为材料,研究播期与氮肥对高寒牧区燕麦生育期、株高、分蘖数及其青干草产量的影响。结果表明:随播期的推迟,燕麦种子成熟期推迟,而施氮量对燕麦生育期无明显影响;播期和氮肥对燕麦株高、分蘖数及草产量皆有显著影响,均随施氮量增加而增加。以开花期收获青干草为目的,则4月下旬-5月上旬播种且施氮量为100 kg/hm2时,可获燕麦高产。
The effects of sowing date and nitrogen application on the height,tillering number,fresh and dry matter yield of oats were studied in alpine region.The results showed that with the prolonging of sowing date,days to maturity was postponed,but the effect of nitrogen fertilizer was not significant;sowing date and nitrogen application had significant effects on height,tillering number and fresh and dry matter yield,and increased with the increasing nitrogen application rate.It was suitable to sow in late April to early May and harvest at flowering stage for higher grass yield under 100 kg/hm2 of nitrogen application rate.
出处
《草业科学》
CAS
CSCD
北大核心
2010年第7期63-67,共5页
Pratacultural Science
基金
农业部"948"燕麦项目(2005Q2)
草业生态系统教育部省部共建重点实验室项目(CYGG2006-04)
关键词
播期
氮肥
燕麦
生长特性
sowing date
nitrogen fertilizer
oat
growth character
