Effects of no-tillage with straw mulch on farmland soil water in Hexi Corridor
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DOI：10.7606/j.issn.1000-7601.2007.01.20
Key Words: No-tillage with straw mulch  fallow  winter storage irrigation quotas(WSIQ)  soil water content
Author NameAffiliation
YAO Bao-lin Collage Agronomy Engineering of Tarum University Alaer, Xinjiang 843300,China 
Shi Jiong-lin Collage Engineering of Gansu University Lanzhou,Gansu 730070,China 
XI Lin-qiao Collage Agronomy Engineering of Tarum University Alaer, Xinjiang 843300,China 
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Abstract:
      onventional tillage with bare ground(CTB),conventional tillage with straw incorporated(CTS) and no-tillage with straw mulch(NTS) were studied in the Hexi corridor of Gansu provience.The result showed: on summer fallow NTS stored soil water more than CTB and CTS by 30.62 mm and 23.91 mm,respectively;the winter storage irrigation quotas(WSIQ) should be reduced to 900～1 350 m3/hm2 on winter fallow;evaporation controlling rate arrived 38.1% and 7.3% at winter storage irrigation quotas 975 m3/hm2 and 2 100 m3/hm2,respectively;NTS did not reduce ET during the spring wheat growth stage;yields different between treatments was not significant.
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