陕西关中一年两熟地区保护性耕作关键技术综合效应研究——Ⅰ.对农田土壤环境理化性状的影响  

Research on comprehensive effect of the main practices of conservation tillage for double cropping system in Guangzhong basin of Shaanxi Province——Ⅰ.Effect of main practices on soil physicochemical properties

作　　者：闫小丽[1] 薛少平[1] 王翔[1] 孙涛[1] 王忠友 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]陕西省渭南市农业机械技术推广站,陕西渭南714000

出　　处：《干旱地区农业研究》2013年第6期1-7,共7页Agricultural Research in the Arid Areas

基　　金：陕西省农机局重点项目"杨凌农业机械化新技术新机具试验示范区建设"

摘　　要：针对陕西关中一年两熟地区应用保护性耕作技术存在的问题,以冬小麦传统翻耕技术为对照,研究了裸地深松间隔年限,裸地与覆盖旋耕,覆盖深松深度,裸地与覆盖免耕,传统与秸秆还田翻耕5种类型10种耕作关键技术对农田土壤环境理化性状的影响。结果表明:两季作物的农田土壤环境理化性状,在裸地深松间隔年限三技术中,均以隔年深松各方面表现较好;在裸地与秸秆覆盖旋耕两技术中,均以秸秆覆盖旋耕各方面表现较好;在秸秆覆盖深松深度两技术中,均以秸秆覆盖深松各方面表现较好;在裸地与秸秆覆盖免耕两技术中,均以秸秆覆盖免耕各方面表现较好;而在翻耕两技术中,均以秸秆还田翻耕各方面表现较好。In order to cope with the problems facing conservation tillage practices in double cropping system Guanzhong basin,Shaanxi Province,the effects of five types and ten main tillage techniques on soil physicochemical properties was investigated,using conventional tillage as control .The results showed that：the physico-chemical proper-ties of the soil environment of double cropping system exhibited higher values for the subsoiling techniques without straw mulching .Rotary tillage with straw mulching showed high values compared with rotary tillage with no straw mulching . Deep subsoiling performed better than shallow subsoiling under straw mulching .Non-tillage with no straw mulching were better than no-tillage with straw mulching .In addition,plowing tillage with straw returning between the two practices of plowing tillage had a good performance .

关 键 词：保护性耕作 一年两熟 土壤环境 理化性状 关中地区 

分 类 号：S341.1[农业科学—作物栽培与耕作技术]