不同施氮水平对青贮玉米植株氮素积累和转运的影响

王丽萍, 白岚方, 王天昊, 王宵璇, 白云鹤, 王玉芬

Effects of Different Nitrogen Levels on Nitrogen Accumulation and Transport in Silage Maize

Wang Liping, Bai Lanfang, Wang Tianhao, Wang Xiaoxuan, Bai Yunhe, Wang Yufen

表1 整株及各器官氮素积累量的方差分析

Table 1 Variance analysis of nitrogen accumulation in the whole plant and each organ

部位 Position 项目 Item 2018 2019 苗期 Seedling stage 拔节期 Jointing stage 大喇叭口期 Big flared stage 抽雄期 Tasseling stage 收获期 Harvest stage 苗期 Seedling stage 拔节期 Jointing stage 大喇叭口期 Big flared stage 抽雄期 Tasseling stage 收获期 Harvest stage 整株 Whole plant F 4.04 4.55 21.07 36.59 35.58 10.81 8.16 21.41 9.73 9.15 P * * ** ** ** ** ** ** ** ** 茎Stem F 2.40 7.70 15.67 9.91 20.40 6.02 16.69 17.52 64.25 2.52 P ns ** ** ** ** ** ** ** ** ** 叶Leaf F 4.88 3.40 17.41 14.24 55.51 12.30 3.06 13.41 5.84 13.27 P * * ** ** ** ** * ** ** ** 苞叶Bract F 22.23 8.42 9.84 1.72 P ** ** ** ns 果穗Ear F 9.91 20.41 2.18 7.08 P ** ** ns ** 籽粒Grain F 19.40 9.15 P ** ** 穗轴Cob F 88.95 2.22 P ** ns