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4 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容重的影响

Table 4 Two-way ANOVA analysis of the interaction between tillage and pelletized straw amount on soil bulk density

土层 Soil layer (cm) 年份 Year 耕作方式 Tillage management 秸秆用量 Straw amount 耕作方式×秸秆用量 Tillage management×Straw amount F P F P F P 0-20 2016 8.08 0.0175 0.30 0.7494 0.25 0.7817 2017 49.38 小鱼0.0001 16.00 0.0008 7.68 0.0095 2018 0.52 0.4887 1.37 0.2974 1.63 0.2438 20-40 2016 7.47 0.0211 2.96 0.0975 0.29 0.7571 2017 6.47 0.0292 23.99 0.0002 18.75 0.0004 2018 46.48 小鱼0.0001 3.07 0.0911 0.50 0.6232