摘要
采用二次通用旋转组合设计,研究行距和播种量对江夏扁穗雀麦鲜草和种子产量的影响.结果表明,行距和播种量对江夏扁穗雀麦鲜草产量影响显著,在一定范围内鲜草产量随播种量的增加呈先增后减趋势,但与行距呈极显著负相关;种子产量主要受栽培行距的影响,其随着行距的增加表现为下降趋势;在行距20cm、播种量22.5～30.0kg/hm2栽培条件下鲜草产量最高;在行距20～30cm、播种量15.0～30.0 kg/hm2时种子产量相对较高.
The effects of row space and seeding rate on yield of fresh forage and seeds of Bromus cartharticus Vahl. cv. Jiangxia by using quadratic general rotary design were studied in Hubei Province, China. The results showed that the spacing and seeding rate significantly affected the fresh yield and it showed the trend of increasing first and then decreasing with the increasing of seeding rate within a certain range. But the fresh yield was significantly negatively correlated with the row space. Seed production was mainly affected by the row space, which was decreased with the increasing of row space. The fresh yield reached the highest under the row space of 20cm and seeding rate of 22.5 to 30.0kg/ha. For seed produc- tion, the proper row space and seeding rate were 20 to 30cm and 15.0 to 30. 0kg/ha respectively.
出处
《中国草地学报》
CSCD
北大核心
2015年第4期108-113,共6页
Chinese Journal of Grassland
基金
农业科技成果转化项目
国家牧草产业技术体系(CARS-35-34)
动物胚胎工程及分子育种湖北省重点实验室开放课题其他类(2013ZD200~299)
关键词
行距
播种量
扁穗雀麦
鲜草产量
种子产量
Row space
Seeding rate
Bromus cartharticus Vahl
Fresh yield
Seeds yield
