短期秸秆还田对土壤理化性质的影响

打开文本图片集

关键词秸秆还田；土壤理化性质;温度;含水量；土壤秸杆体积比

中图分类号 S141.4 文献标识码A

文章编号 0517-6611（2025）20-0143-04

doi：10.3969/j.issn.0517-6611.2025.20.031

AbstractIntisexperient，thefetsoffactosand3levelsontheorgancmaterandN，PndKcontentofarmandsoilesudied by orthogonal experiment.The order of influence on organic matter and N content was water content > temperature > volumeratio of soil to straw （VRSS）thederofifuenceonwasVSSemperature>watercotentndtederofifuenceonKcoentwastemperaure>S> water content.Temperature and moisture content had significant effects on soil organic matter （P<0.05） ，moisture content had significant effects on soil N content （P<0.05） ，VRSS had significant effects on soil P content （ （P<0.05 ），and temperature，VRSS and water content had significant effects on soil K content （ P<0.05. ）. The orthogonal test results showed that the best combination of straw returning to the field should be 10% and 80% water content，the best combination of soil N and ΔP content was water content 60% and VRSS 1：8 ，and the best combination of soil K content was temperature 5qC ，water content 60% ，and VRSS 1：8

KeyWordsStrawmulching;Soil physicalandchemical properties;Temperature;Watercontent;Volumeratioof soiltostraw

数据显示，中国秸秆年产量达7亿t，大量的秸秆任意焚烧不仅会造成环境污染和资源浪费，还易引发火灾，造成大量的经济损失[1-2]。（剩余5905字）