不同厚度秸秆隔层对河套灌区盐碱土壤温度、水分和食葵产量的影响

王国丽,常芳弟,张宏媛,卢闯,宋佳珅,王婧,逄焕成,李玉义

Effects of Straw Interlayer with Different Thickness on Saline-Alkali Soil Temperature, Water Content, and Sunflower Yield in Hetao Irrigation Area

WANG GuoLi,CHANG FangDi,ZHANG HongYuan,LU Chuang,SONG JiaShen,WANG Jing,PANG HuanCheng,LI YuYi

表3 2015—2017年食葵关键时期0—40 cm土层平均土壤含水量

Table 3 The average soil water content of 0—40 cm soil layer during the key period of sunflower from 2015 to 2017

年份 Year 处理 Treatment 灌溉前土壤含水量 Soil water content before irrigation (%) 灌溉后土壤含水量 Soil water content after irrigation (%) 收获后土壤含水量 Soil water content after harvest (%) 2015 CK 11.01±0.17a 19.64±0.14c 21.42±0.22a S3 10.21±0.21bc 20.38±0.02b 21.12±0.23ab S5 10.73±0.19ab 20.86±0.04a 20.99±0.07ab S7 10.13±0.12c 20.95±0.05a 20.64±0.12b 2016 CK 25.37±0.13a 27.05±0.09b 20.04±0.09a S3 24.32±0.01b 27.67±0.02a 19.73±0.24ab S5 23.12±0.04c 27.73±0.06a 19.46±0.03bc S7 22.71±0.24c 27.77±0.12a 19.09±0.21c 2017 CK 21.53±0.13a 25.75±0.05b 21.24±0.12a S3 21.16±0.16b 26.07±0.22ab 20.88±0.09b S5 20.92±0.06b 26.31±0.1a 20.49±0.09c S7 20.51±0.07c 26.33±0.1a 19.76±0.08d