摘要
为解决冬春饲草料不足,充分利用夏收闲田复种饲草料作物,拓宽饲草料来源、提高土壤肥力,对复种初岛燕麦(Avena sativa)和中豌六号豌豆(Pisum sativum)单播及混播的一年生栽培草地进行生物量动态、牧草品质及种间竞争的研究。结果表明,最佳混播组合为初岛燕麦65%(195 kg/hm2)+中豌六号35%(42kg/hm2)和初岛燕麦50%(150 kg/hm2)+中豌六号50%(60 kg/hm2),9月10日刈割干草产量达7 246.44和7 133.91 kg/hm2;粗蛋白产量为624.64和670.6 kg/hm2;最佳刈割期以初岛燕麦开花-灌浆期为宜。初岛燕麦的干物质积累速率高,植株高度占优势,在竞争中一直处于优势地位,其竞争力强于中豌六号豌豆。
An experiment was conducted to determine the yield and quality of mixed-sowing pasture of Avena sativa and Pisum sativum for increasing the winter forage,making full use of cropland,and improving soil fertility.The results of this study showed that two seeding rates（195 kg/hm2 A.sativa ＋ 42 kg/hm2 P.sativum;150 kg/hm2 A.sativa ＋ 60 kg/hm2 P.sativum） were the best,and their yields were 7 246.44 kg/hm2 and 7 133.91 kg/hm2 on 10 September and their crude protein yields were 624.64 kg/hm2 and 670.6 kg/hm2.The best cutting time for A.sativa was the beginning flowering and filling stage.A.sativa grew fast and became a dominant position due to higher height.
出处
《草业科学》
CAS
CSCD
北大核心
2010年第11期101-108,共8页
Pratacultural Science
基金
"十一五"国家科技支撑计划项目"高效草业及舍饲畜牧业关键技术开发与示范"(2007BAC15B04)
关键词
复种草地
混播群落
生物量
品质
竞争力
刈割期
初岛燕麦
中豌六号
cropping the grass
mixed communities
biomass
quality
competitiveness
cutting period
Avena sativa
Pisum sativum
