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2 土壤温度（y）与大气温度（x）的回归关系

Table 2 Regression relationship between soil temperature (y) and atmospheric temperature (x)

年份 Year 处理 Treatment 回归方程 Regression equation R2 2015 CK y= 0.817x+7.095 0.711** S3 y=0.846x+6.801 0.728** S5 y=0.875x+6.386 0.727** S7 y=0.856x+7.004 0.710** 2016 CK y=0.646x+7.181 0.718** S3 y=0.632x+7.730 0.721** S5 y=0.666x+7.276 0.733** S7 y=0.678x+7.171 0.735** 2017 CK y=0.580x+10.234 0.637** S3 y=0.579x+10.402 0.628** S5 y=0.616x+9.776 0.642** S7 y= 0.600x+10.388 0.654**