不同耕作措施下添加秸秆对土壤有机碳及其相关因素的影响

王碧胜,于维水,武雪萍,高丽丽,李景,宋霄君,李生平,卢晋晶,郑凤君,蔡典雄

Effects of Straw Addition on Soil Organic Carbon and Related Factors Under Different Tillage Practices

BiSheng WANG,WeiShui YU,XuePing WU,LiLi GAO,Jing LI,XiaoJun SONG,ShengPing LI,JinJing LU,FengJun ZHENG,DianXiong CAI

表1 试验地 0—20 cm 土层基础理化性状

Table 1 Soil characteristics in 0-20 cm soil depth of experimental site

土层 Soil layer (cm) 砂粒质量分数 Sand content (%) 粉粒质量分数 Silt content (%) 黏粒质量分数 Clay content (%) 有机质 Organic matter (g·kg-1） 全氮 Total nitrogen (g·kg-1) 速效氮 Available nitrogen (mg·kg-1) 速效磷 Available phosphorus (mg·kg-1) 速效钾 Available potassium (mg·kg-1) pH 0-20 59 35 6 25.7 1.04 54 7.3 84 7.87