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2 不同处理旱地玉米不同生育时期0~200cm土壤贮水量

Table 2 0~200cm soil water storage at different growth stages in dryland maize under different treatments mm

处理Treatment 出苗期 Emergence 拔节期 Jointing 抽雄期 Heading 灌浆期 Filling 收获期 Harvesting 平均值 Average RH0 371.1aA 333.2bB 418.2aA 386.1aA 339.1aA 369.5aA RH5 372.0aA 321.5cC 417.4aA 388.3aA 340.5aA 367.5aA RH10 371.3aA 335.4bB 412.8aA 385.4aA 347.7aA 370.1aA RH15 373.4aA 336.1bB 413.4aA 379.2aA 348.9aA 369.8aA RH20 373.3aA 346.4aA 416.6aA 387.8aA 340.2aA 372.4aA CK 366.7aA 338.6bB 413.0aA 391.9aA 325.1bB 366.7aA 平均值±标准偏差Average±Standard deviation 371.2±2.6 335.3±8.2 415.4±2.5 386.3±4.2 340.5±8.0 369.3±2.0