冷凉区旱地玉米微垄覆膜土壤水热及产量效应研究

张冬梅,黄学芳,姜春霞,张伟,王晓娟,刘化涛,闫六英,刘恩科,翟广谦

Effects of Micro-Ridge Film Mulching on Soil Water and Temperature and Yield of Dryland Maize in Cold Areas

Dongmei Zhang,Xuefang Huang,Chunxia Jiang,Wei Zhang,Xiaojuan Wang,Huatao Liu,Liuying Yan,Enke Liu,Guangqian Zhai

表4 不同处理旱地玉米产量及相关性状

Table 4 Grain yield and related yield traits under different treatments in dryland

处理 Treatment 穗长(cm) Ear length 穗粗(cm) Ear diameter 穗行数 Ear row number 行粒数 Grain number per row 穗粒数 Grain number per spike 百粒重(g) 100-grain weight 经济产量 (kg/hm2) Grain yield 生物产量 (kg/hm2) Shoot biomass 出子率(%) Shelling percentage 收获指数(%) Harvest index RH0 14.9abA 7.0aA 17.0aA 34.2aA 579.7bB 32.4cC 12 643.4bB 23 766.9cC 86.6aA 49.9aA RH5 15.2aA 7.0aA 17.5aA 34.2aA 597.7aA 34.9aA 13 444.0aA 27 540.4aA 87.4aA 48.8abA RH10 14.5bB 7.1aA 17.4aA 33.2aA 576.0bB 33.7bB 13 330.7aA 25 536.1bB 87.3aA 49.5aA RH15 14.3bB 7.1aA 17.4aA 32.9aA 573.6bB 33.9bB 12 742.0bB 25 849.6bB 87.1aA 47.7bB RH20 14.5bB 7.1aA 17.1aA 32.9aA 560.3cC 33.6bB 12 645.0bB 26 506.6bB 86.7aA 44.9cC CK 13.3cC 7.1aA 17.0aA 30.3bB 514.0dD 33.8bB 10 514.3cC 25 923.0bB 87.1aA 45.6cC