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1 密度对两个青贮玉米品种果穗率、子粒占比和子粒产量的影响

Table 1 Effects of density on fruiting rate, grain ratio,and grain yield of two silage maize varieties

品种 Variety 密度(株/ hm2) Density (plant/hm2) 果穗率(%) Fruiting rate 子粒占比(%) Grain ratio 子粒产量 (kg/hm2) Grain yield 雅玉8号 60 000 51.75a 44.06a 7 004a Yayu 8 75 000 51.28ab 41.68b 7 226a 90 000 50.90bc 40.79b 6 281b 105 000 50.38c 40.38b 5 836c 登海605 60 000 63.60a 51.20a 7 115b Denghai 605 75 000 59.18b 48.64b 7 948a 90 000 58.16b 47.52bc 7 448b 105 000 57.61b 46.01c 7 059b