摘要
试验旨在明确北方寒区麦后复种饲用油菜的最佳播种量与采收期。以华油杂62为试验材料,对其不同种植密度条件下的苗期、抽薹期、盛花期和荚果初期的产量和品质主要性状进行比较分析。结果显示:在相同播种密度下,随着生育期推进,华油杂62的粗蛋白和粗脂肪含量呈逐渐增加的趋势,粗灰分和碳水化合物含量呈逐渐下降的趋势,粗纤维含量从苗期至荚果初期明显增加。相关性分析表明,华油杂62的粗蛋白与热量、碳水化合物与热量呈极显著正相关(P<0.01);华油杂62的产量在盛花期产量最高。华油杂62的鲜重产量在播种量为11.25 kg/hm^(2)时最高。研究表明,华油杂62在播种量11.25 kg/hm^(2)的条件下,盛花期前后采收,可获得较高产量,油菜营养品质最佳。
The study was to clarify the optimal seeding rate and harvesting period of forage rapeseed for multiple cropping after wheat in cold region of north China.Huayouza 62 was used as experimental material,the main characters of yield and quality at seedling,bolting,flowering and early pod under different seweding rate were compared and analyzed.The results showed that under the same seeding rate,during growth and development,crude protein and ether extract content of Huayouza 62 showed a trend of gradual increase,while ash content and carbohydrate content showed a trend of gradual decrease.Crude fiber content increased significantly from seedling stage to early pod stage.Correlation analysis showed that the crude protein and caloric content,carbohydrate and caloric content of Huayouza 62 were extremely positively correlated(P<0.01).The yield of Huayouza 62 was the highest at full flowering stage.The fresh weight yield of Huayouza 62 was the highest when the seeding rate was 11.25 kg/hm^(2).The study indicates that Huayouza 62 can obtain higher yield and the best nutritional quality of rapeseed under the condition of seeding rate of 11.25 kg/hm^(2),harvested before and after the flowering period.
作者
毕影东
樊超
梁文卫
邸树峰
来永才
李炜
周广生
傅廷栋
BI Ying-dong;FAN Chao;LIANG Wen-wei;DI Shu-feng;LAI Yong-cai;LI Wei;ZHOU Guang-sheng;FU Ting-dong
出处
《饲料研究》
CAS
北大核心
2022年第18期105-108,共4页
Feed Research
基金
黑龙江省省属科研院所科研业务费项目(项目编号:CZYF2020C004)
黑龙江省农业科学院“农业科技创新跨越工程”专项(项目编号:HNK2019CX08-06)。
关键词
饲用油菜
复种
播种量
产量
品质
forage rapeseed
multiple cropping
seed rate
yield
quality
