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7 双因素方差分析耕作方式与秸秆颗粒用量交互作用对土壤总孔隙度和毛管孔隙度的影响

Table 7 Two-way ANOVA analysis of the interaction between tillage and pelletized straw amount on total porosity and capillary porosity

土层 Soil layer (cm)	年份 Year	指标 Index	耕作方式Tillage management		秸秆用量 Straw amount		耕作方式×秸秆用量 Tillage management×straw amount
土层 Soil layer (cm)	年份 Year	指标 Index	F	P	F	P	F	P
0-20	2016	总孔隙度Total porosity (%)	23.96	0.0006	0.88	0.4435	0.75	0.4967
	2016	毛管孔隙度Capillary porosity (%)	0.78	0.3992	0.08	0.9264	2.04	0.1806
	2017	总孔隙度Total porosity (%)	48.86	小鱼0.0001	5.79	0.0213	8.66	0.0066
	2017	毛管孔隙度Capillary porosity (%)	0.91	0.3622	0.31	0.7386	1.28	0.3191
	2018	总孔隙度Total porosity (%)	1.97	0.1903	5.26	0.0275	6.24	0.0174
	2018	毛管孔隙度Capillary porosity (%)	0.44	0.5236	0.40	0.6779	0.46	0.6425
20-40	2016	总孔隙度Total porosity(%)	9.75	0.0108	3.87	0.0568	0.37	0.6971
	2016	毛管孔隙度Capillary porosity (%)	9.62	0.0112	1.48	0.2728	5.60	0.0234
	2017	总孔隙度Total porosity (%)	6.40	0.0298	23.87	0.0002	18.66	0.0004
	2017	毛管孔隙度Capillary porosity (%)	0.03	0.8725	53.93	小鱼0.0001	1.74	0.2240
	2018	总孔隙度Total porosity (%)	23.13	0.0007	1.52	0.2646	0.25	0.7863
	2018	毛管孔隙度Capillary porosity (%)	12.78	0.0050	0.49	0.6255	4.21	0.0471