Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES)   2012 , Volume 26 , Number 3; Page(s) 269 To 276.
 
Paper: 

STUDYING TILLAGE EFFECTS ON PHYSICAL FACTORS AFFECTING PLANT GROWTH USING LLWR INDEX

 
 
Author(s):  GHAFARI H.*, NEKOUEI MEHR M., FARZAN M.
 
* SOIL AND WATER DEPARTMENT, AGRICULTURE AND NATURAL RESOURCES RESEARCH CENTER OF SHAHREKORD
 
Abstract: 

Plant growth is directly affected by soil water, soil aeration, and soil resistance to root penetration. Least limiting water range (LLWR), a proposed soil structural quality index, is the range of soil water content at which plant growth is least limited by water potential, aeration, and soil mechanical resistance. In this study, the effect of tillage on the physical factors controlling plant growth in the LLWR index was investigated. Sixty undisturbed soil samples were collected from two contiguous fields cultivated by no-tillage and conventional tillage. Then, soil water retention curve, soil resistance curve, and bulk density were determined. The results showed that in conventional tillage system LLWR was significantly higher (P<0.01). In no-tillage system, qSR (soil moisture equivalent to 2 MPa penetration resistance) was the lower limit of LLWR in 63% of the samples and replaced qPWP (soil moisture at permanent wilting point), while this value was 53% in conventional tillage.

 
Keyword(s): SOIL RESISTANCE, LEAST LIMITING WATER RANGE, SOIL WATER CURVE
 
 
References: 
  • ندارد
  •  
 
Cite:
APA: Copy

GHAFARI, H., & NEKOUEI MEHR, M., & FARZAN, M. (2012). STUDYING TILLAGE EFFECTS ON PHYSICAL FACTORS AFFECTING PLANT GROWTH USING LLWR INDEX. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES), 26(3), 269-276. https://www.sid.ir/en/journal/ViewPaper.aspx?id=297259



Vancouver: Copy

GHAFARI H., NEKOUEI MEHR M., FARZAN M.. STUDYING TILLAGE EFFECTS ON PHYSICAL FACTORS AFFECTING PLANT GROWTH USING LLWR INDEX. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES). 2012 [cited 2021April16];26(3):269-276. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=297259



IEEE: Copy

GHAFARI, H., NEKOUEI MEHR, M., FARZAN, M., 2012. STUDYING TILLAGE EFFECTS ON PHYSICAL FACTORS AFFECTING PLANT GROWTH USING LLWR INDEX. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES), [online] 26(3), pp.269-276. Available at: <https://www.sid.ir/en/journal/ViewPaper.aspx?id=297259>.



 
 
Yearly Visit 44 Persian Abstract
 
Latest on Blog
Enter SID Blog