| The effects of conservation tillage on soil physical properties in the southern part of the MuUs desert |
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| DOI：10.7606/j.issn.1000-7601.2008.03.33 |
| Key Words: conservation tillage soil physical property crop yield Mu Us Sand Land |
| Author Name | Affiliation | | LEI Jinyin | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | WU Faqi | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | MA Fan | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | MA Bo | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China | | LI Rongbiao | College of Resources and Environment Northwest A ＆ F University,Yangling, Shaanxi 712100, China |
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| Abstract: |
| Conservation tillage can reduce soil wind erosion and control soil degradation in sandy area．The objective of this field experiment was to compare the effects of four tillage measurements （no-till stalkmulching film-mulching and conventional tillage） on soil physical properties the sandy soil region of northern Jingbian County Shaanxi Province．The experiment began in2004．A completely randomized design was used． The results showed that at early spring planting soil temperatures were0．1oC lower in the stalk-mulching and no-till treatments compared to the conventional tillage treatment．Soil temperatures were highest under film mulch．There was no significant difference in soil bulk density among the treatments before planting；however there was a significant difference among the treatments after harvest．Soil bulk density in the 0～20cm layer was 2．3％ lower in the no-tillage treatment compared to conventional tillage；however the bulk density in the 20～40cm layer was 1．8％ higher in the no-tillage treatment compared to conventional tillage．Soil water content decreased in the order stalk-mulching＞film-mulching＞no-till＞conventional tillage．Both initial and equilibrium infiltration rate infiltrate rate are higher in conservation tillage than conventional tillage．In summary the results show that conservation tillage methods improved soil physical properties and therefore could be implemented in the southern part of Mu Us desert. |
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