旋耕配合秸秆颗粒还田对土壤物理特性的影响

董建新,宋文静,丛萍,李玉义,逄焕成,郑学博,王毅,王婧,况帅,徐艳丽

Improving Farmland Soil Physical Properties by Rotary Tillage Combined with High Amount of Granulated Straw

DONG JianXin,SONG WenJing,CONG Ping,LI YuYi,PANG HuanCheng,ZHENG XueBo,WANG Yi,WANG Jing,KUANG Shuai,XU YanLi

表5 2016—2018年不同处理下植烟土壤田间持水量及其上升比率

Table 5 Soil field water capacity and its increases under different treatments from 2016 to 2018

土层 Soil layer (cm) 处理 Treatment 2016 2017 2018 田间持水量 Field water capacity (%) 田间持水量上升比率 Field water capacity increase (%) 田间持水量 Field water capacity (%) 田间持水量上升比率 Field water capacity increase (%) 田间持水量 Field water capacity (%) 田间持水量上升比率 Field water capacity increase (%) 0-20 RG0 20.73±0.20c — 19.16±0.52cd — 19.24±0.30b — TG1 21.58±0.64bc 4.10 18.84±0.41d -1.67 20.38±0.45ab 5.92 TG2 21.82±0.28bc 5.24 20.46±0.73bc 6.77 20.67±0.48a 7.43 TG3 21.75±0.25bc 4.94 20.34±0.31bc 6.16 20.50±0.74ab 6.53 RG1 23.14±0.31a 11.65 21.19±0.29ab 10.62 20.37±0.38ab 5.86 RG2 22.24±0.74ab 7.28 20.64±0.29b 7.72 20.39±0.12ab 5.99 RG3 22.72±0.27ab 9.60 22.01±0.40a 14.86 21.52±0.41a 11.83 20-40 RG0 19.94±0.32c — 17.77±1.01bc — 17.23±0.53c — TG1 20.88±0.19bc 4.72 17.15±0.54c -3.47 19.78±0.55ab 14.79 TG2 21.54±0.42ab 8.04 20.76±1.15a 16.81 19.34±0.27ab 12.23 TG3 21.42±0.08ab 7.44 20.45±0.86a 15.08 19.47±0.35ab 12.98 RG1 21.45±0.47ab 7.58 15.82±0.38c -10.98 18.58±0.82bc 7.83 RG2 20.92±0.56bc 4.92 20.23±0.72ab 13.82 19.63±0.56ab 13.92 RG3 22.28±0.14a 11.74 19.86±1.14ab 11.75 20.33±0.38a 17.98