摘要
本文针对内蒙古旱作农田水蚀风蚀严重的问题,研究燕麦大田种植下,不同保护性耕作措施对土壤酶活性的影响。结果表明:不同的保护性耕作措施对土壤脲酶、蔗糖酶、碱性磷酸酶的活性具有显著的影响。其中,留高茬覆盖以及留高茬处理的土壤酶活性要明显高于常规耕作,留低茬覆盖的土壤酶活性也高于常规耕作,其原因是连续的保护性耕作可以改善土壤结构,提高土壤养分;留低茬与常规耕作酶活性的差异不很显著;土壤酶活性与产量之间存在极高的相关性。
The content of paper main study,In the field planting pattern,the activity of Enzyme in soil of oat with conservation tillage.The results are as follows： Different measures of conservation tillage impact to activity of urease,invertase and alkaline phosphatase in soil.Among them,activity of Enzyme in soil with high stubble and residue is obviously higher than conventional farming.The reason of above-mentioned is that the farming of conservation tillage can improve structure and nutrients of soil.Low stubble and conventional farming don＇t have significant difference.Crop yield has high correlation with activity of soil enzymes.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2009年第3期79-82,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
挑战计划项目"黄河流域旱作保护性农业研究"
关键词
保护性耕作
留茬
覆盖
土壤酶活性
Conservation tillage
stubble and residue
soil enzyme activity
