不同膜上遮挡措施对旱地玉米土壤理化性状及产量的影响

王奇, 扶亚芳, 司雷勇, 金岩, 夏镇卿, 路海东

Effects of different cooling methods on maize soil physical and chemical properties and yield in dryland

WANG Qi, FU Ya-Fang, SI Lei-Yong, JIN Yan, XIA Zhen-Qing, LU Hai-Dong

表4 不同覆盖方式下的玉米产量

Table 4 Maize yield under different film mulching methods

年份 Year 处理 Treatment 有效穗数 Effective spike (×104 ear hm-2) 穗粒数 Kernels per spike 千粒重 1000-kernel weight (g) 产量 Yield (kg hm-2) 2018 A 6.92 a 650.87 a 336.08 a 15145.96 a B 6.88 a 653.59 a 333.69 a 15010.87 a C 6.95 a 644.19 a 310.42 b 13903.03 b 2019 A 6.87 a 666.10 a 325.42 a 14902.46 a B 6.79 a 671.38 a 328.08 a 14962.27 a C 6.75 a 669.35 a 309.83 b 1410.04 b