The effect of different tillage on soil water and soil temperature of winter-wheat field
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DOI:10.7606/j.issn.1000-7601.2009.01.17
Key Words: no-tillage with straw retention  no-tillage  soil water  soil temperature
Author NameAffiliation
YU Aizhong College of Agronomy Gansu Agricultural University, Lanzhou, Gansu 730070, China 
HUANG Gaobao College of Agronomy Gansu Agricultural University, Lanzhou, Gansu 730070, China 
FENG Fuxue College of Agronomy Gansu Agricultural University, Lanzhou, Gansu 730070, China 
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Abstract:
      Based on the long term field experiment in inland river irrigation area,the effect of different tillage treatments on winter-wheat farmland soil water and temperature was investigated.The result showed that the average soil water content in 0~150 cm layer of no-tillage with straw retention(NTS) was 0.21%,0.23% higher than that of no-tillage(NT) and conventional tillage(T) respectively during the stage of winter-wheat turning green to maturating.The average soil water content in 0~150 cm layer after winter-wheat was harvested were showed as follows: NTS>NT>>T.The soil temperature in 0~25 cm layer of NTS was lower than that of NT and T in sunny day and cloudy day during the stage of winter-wheat turning green to maturating.The average soil temperature of NTS was 2.8℃ and 2.6℃ lower than that of T.The NTS could steady the soil temperature.There was significantly negative relationship between soil water content and soil temperature.