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8 不同秸秆颗粒施用方式下土壤R0.25、MWD、GMD及D的变化

Table 8 Changes of R0.25, MWD, GMD and D in soil under different pelletized straw incorporation management

土层 Soil layer (cm) 处理 Treatment 2016 2017 2018 R0.25 MWD (mm) GMD (mm) D R0.25 MWD (mm) GMD (mm) D R0.25 MWD (mm) GMD (mm) D 0-20 RG0 49.65±2.49c 0.51±0.04b 0.26±0.01d 2.65±0.02a 66.05±1.99c 0.66±0.03d 0.37±0.02d 2.61±0.02a 69.44±1.18b 0.64±0.02d 0.37±0.01c 2.61±0.02a TG1 62.03±2.25ab 0.61±0.01a 0.34±0.02ab 2.63±0.01a 69.22±2.61c 0.62±0.02d 0.36±0.01d 2.60±0.02ab 72.71±2.02ab 0.77±0.03ab 0.44±0.03ab 2.60±0.02a TG2 63.53±2.89ab 0.61±0.02a 0.34±0.01ab 2.62±0.01a 76.38±2.81b 0.75±0.03c 0.42±0.03c 2.59±0.01ab 74.92±1.65ab 0.87±0.06a 0.49±0.03a 2.59±0.02a TG3 65.46±3.01a 0.63±0.03a 0.36±0.02a 2.62±0.01a 76.80±2.34b 0.75±0.04c 0.48±0.03c 2.58±0.01ab 69.46±1.05b 0.66±0.03cd 0.38±0.02c 2.61±0.02a RG1 61.77±2.03ab 0.59±0.02a 0.32±0.01bc 2.63±0.01a 82.41±3.01ab 0.98±0.05b 0.61±0.02b 2.56±0.01b 78.68±2.99a 0.85±0.05a 0.49±0.04a 2.58±0.01a RG2 59.84±1.98b 0.51±0.02b 0.29±0.01cd 2.63±0.02a 84.69±3.24a 1.04±0.07ab 0.65±0.02ab 2.55±0.01b 71.42±1.47b 0.77±0.02ab 0.42±0.02b 2.60±0.01a RG3 60.55±2.01ab 0.49±0.03b 0.30±0.01cd 2.62±0.01a 84.77±2.99a 1.19±0.07a 0.72±0.04a 2.56±0.01b 73.86±1.87ab 0.72±0.02bc 0.43±0.02ab 2.59±0.01a 20-40 RG0 61.51±1.71b 0.65±0.04b 0.35±0.01bc 2.63±0.02a 74.31±2.01ab 0.88±0.04a 0.49±0.03ab 2.59±0.02a 72.01±1.59a 0.73±0.03ab 0.42±0.02b 2.60±0.01a TG1 62.70±1.32b 0.53±0.02cd 0.31±0.01c 2.62±0.01a 74.12±1.42ab 0.76±0.03b 0.44±0.01c 2.59±0.02a 72.11±1.77a 0.67±0.02b 0.40±0.01b 2.60±0.01a TG2 69.54±2.47a 0.59±0.03bc 0.36±0.02b 2.60±0.01a 74.15±1.27ab 0.79±0.04b 0.45±0.02bc 2.59±0.01a 75.01±2.04a 0.72±0.03ab 0.43±0.02ab 2.59±0.01a TG3 63.34±1.56b 0.51±0.02d 0.31±0.01c 2.62±0.01a 75.34±2.77ab 0.74±0.02b 0.44±0.01c 2.58±0.01a 73.44±1.99a 0.67±0.02b 0.40±0.02b 2.59±0.01a RG1 61.84±1.23b 0.52±0.02cd 0.31±0.01c 2.62±0.01a 72.52±1.44bc 0.83±0.06ab 0.47±0.03bc 2.60±0.02a 75.34±2.36a 0.78±0.04a 0.46±0.02a 2.59±0.01a RG2 62.29±1.20b 0.56±0.03bc 0.33±0.01c 2.62±0.01a 77.08±3.28a 0.93±0.06a 0.54±0.04a 2.58±0.01a 72.62±1.63a 0.76±0.02a 0.44±0.01ab 2.60±0.02a RG3 71.28±4.11a 0.79±0.06a 0.44±0.03a 2.60±0.01a 70.82±1.02c 0.76±0.02b 0.43±0.02c 2.60±0.02a 72.85±1.02a 0.79±0.04a 0.44±0.02ab 2.60±0.01a