摘要
粮饲通用型玉米产量高品质优良,在生产上应用越来越广泛。为探讨其适宜种植密度,以4个粮饲通用型玉米品种登海605、登海圣丰168、青农118和天泰366为试验材料,研究4个种植密度(4.5×10^(4)、6.75×10^(4)、9×10^(4)和11.25×10^(4)株/hm^(2))对粮饲通用玉米产量和饲用品质的影响。结果表明,在一定范围内随着种植密度的增加,玉米的鲜草和干草产量呈增加的趋势。种植密度对中洗涤纤维影响不显著,对酸性洗涤纤维、粗蛋白、淀粉和粗脂肪的影响在不同品种间变化趋势不一致。综合生物产量和粗饲料分级指数,在黄淮海地区天泰366和登海605推荐种植密度分别为9×10^(4)株/hm^(2)和11.25×10^(4)株/hm^(2),青农118和登海圣丰168推荐种植密度为9×10^(4)~11.25×10^(4)株/hm^(2)。
The foodstuff maize is sufficient in biomass yield and nutritional quality,which is widely used in ag⁃ricultural production.Our aim was to compare yield and forage quality of mzize with four planting density(4.5×10^(4),6.75×10^(4),9×10^(4) and 11.25×10^(4) plants/ha)and four varieties(Denghai605,Denghai Shengfeng168,Qingnong118,and Tiantai366),therefore obtaining the optimal sowing density and variety in Huanghuaihai area.With the increase of planting density,the yield of fresh grass and hay increased.The neutral detergent fiber was not significantly changed across planting density.With the increase of planting density,the change trend was different in acidic de⁃tergent fiber,crude protein,starch and crude fat among four varieties.Based on forage yield and raw fodder grading index,the optimal sowing densities of Tiantai366 and Denghai605 were 9×10^(4) plants/ha and 11.25×10^(4) plants/ha,re⁃spectively.For Qingnong118 and Denghai Shengfeng168,the optimal sowing densities were 9×10^(4)-11.25×10^(4) plants/ha.
作者
熊王丹
郭勇震
孟帅
王玉建
孙震
赵怡然
刘洪庆
杨国锋
陈景堂
宋希云
孙娟
XIONG Wang-dan;GUO Yong-zhen;MENG Shuai;WANG Yu-jian;SUN Zhen;ZHAO Yir-an;LIU Hong-qing;YANG Guo-feng;CHEN Jing-tang;SONG Xi-yun;SUN Juan(College of Grassland Science,Qingdao Agricultural University,Qingdao 266109;College of Agronomy,Qingdao Agricultural University,Qingdao 266109,China)
出处
《玉米科学》
CAS
CSCD
北大核心
2022年第6期102-109,共8页
Journal of Maize Sciences
基金
山东省农业良种工程项目(2019LZGC002-2)
国家牧草农业产业技术体系(CARS-34)
山东省现代农业产业技术体系牧草创新团队(SDAIT-23-01)
青岛农业大学博士基金(1120007)。
关键词
玉米
种植密度
生物产量
农艺性状
营养品质
Maize
Sowing density
Biomass yield
Economical character
Nutritional quality
