种植密度对不同类型玉米青贮产量和营养价值的影响

庄克章,吴荣华,张春艳,徐立华,徐相波,丁一,王振南

Effects of Density on Yield and Nutritional Value of Different Types of Silage Maize

Kezhang Zhuang,Ronghua Wu,Chunyan Zhang,Lihua Xu,Xiangbo Xu,Yi Ding,Zhennan Wang

表4 密度对两个青贮玉米品种无氮浸出物和总能量的影响

Table 4 Effects of density on nitrogen-free extract and total energy of two silage maize varieties

品种 Variety 密度(株/hm2) Density (plant/hm2) 无氮浸出物含量(%) Nitrogen-free extract content 总能量 (MJ/hm2) Total energy 雅玉8号 60 000 56.08a 3 372c Yayu 8 75 000 52.72b 3 584a 90 000 50.68b 3 214b 105 000 50.65b 2 977d 登海605 60 000 56.18a 3 041c Denghai 605 75 000 54.25b 3 421a 90 000 52.78bc 3 252b 105 000 52.26c 3 070c