| 不同耕作方式对旱地土壤酸解有机总氮的影响 |
| |
| 引用本文： | 姜小凤,张仁陟,王玲英,杨玉惠,孙立军.不同耕作方式对旱地土壤酸解有机总氮的影响[J].甘肃农业大学学报,2006,41(1):48-51. |
| |
| 作者姓名： | 姜小凤 张仁陟 王玲英 杨玉惠 孙立军 |
| |
| 作者单位： | 甘肃农业大学资源与环境学院,甘肃,兰州,730070 |
| |
| 摘 要： | 通过在定西进行秸秆覆盖免耕试验,研究了长期连续定位使用秸秆覆盖免耕对土壤中酸解有机总氮变化的累积影响.结果表明:免耕秸秆覆盖能不同程度的增加土壤酸解有机总氮含量,提高土壤肥力,造成土壤养分的表层富集,0~5 cm,5~10 cm土层有机总氮在播前与收获后差异显著;与传统耕作相比,0~5 cm土层有机总氮比对照增加了17.18%.
|
| 关 键 词： | 秸秆覆盖 免耕 土壤有机氮 |
| 文章编号： | 1003-4315（2006）01-0048-04 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-06-24 |
Effect of no-tillage with straw cover on soil organic nitrogen in dry land |
| |
| JIANG Xiao-feng,ZHANG Ren-zhi,WANG Ling-ying,YANG Yu-hui,SUN Li-jun.Effect of no-tillage with straw cover on soil organic nitrogen in dry land[J].Journal of Gansu Agricultural University,2006,41(1):48-51. |
| |
| Authors: | JIANG Xiao-feng ZHANG Ren-zhi WANG Ling-ying YANG Yu-hui SUN Li-jun |
| |
| Institution: | College of Resource and Environment Seienees,Gansu Agricultural University, Lanzhou 730070,China |
| |
| Abstract: | The influence of permanent no-tillage with straw cover in long term on the change of soil total organic nitrogen had been studied in Dingxi county,one of the typical semi-arid areas in Gansu Province.No-tillage with straw cover(NTS) can improve soil total organic nitrogen in different degrees,especially on the surface.Soil organic nitrogen in 0～5cm,5～10 cm layer before sowing and after harvesting appear to have significant difference in NTS.The total organic nitrogen with NTS increased by 17.18 % to conventional tillage with no straw(T). |
| |
| Keywords: | straw cover no-tillage soil organic nitrogen |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
