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1 供试土壤基础理化性状

Table 1 Basic physicochemical properties of tested soil

土层 Soil layer (cm) pH 有机质 Soil organic matter (g·kg-1) 容重 Soil bulk density (g·cm-3) 田间持水量 Field water capacity (%) 总孔隙度 Soil total porosity (%) 毛管孔隙度 Soil capillary porosity (%) >0.25 mm水稳性团聚体 >0.25 mm water stable aggregate (%) 0-20 7.89 14.88 1.34 20.89 48.91 27.15 61.98 20-40 8.03 13.79 1.59 17.25 36.28 29.90 70.59