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

Paper Information

Journal:   WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)   Spring 2004 , Volume 8 , Number 1; Page(s) 106 To 106.
 
Paper: 

CHANGES IN SOME PHYSICAL AND MECHANICAL PROPERTIES OF A STRUCTURALLY UNSTABLE SOIL AFTER FLOOD IRRIGATION

 
 
Author(s):  MOSADEGHI M.R., HEMAT A., HAJABBASI M.A.
 
* 
 
Abstract: 
Soil tilth is crucial to seedling emergence, plant growth, and crop yield. Soil tilth of unstable soil is very susceptible to change. Internal forces originating from matric suction can change soil physical properties. A laboratory study was conducted on pots of a surface silty clay loam soil of Khomeinishahr series (fine-loamy, mixed, thermic Typic Haplargids, USDA), located in Research Farm of Isfahan University of Technology. Soil surface subsidence, bulk density, cone index, and tensile strength were measured after first flood irrigation. Results showed that the seedbed (0-20 cm) with a bulk density of 1.2 Mg.m^-3 will be changed to a massive soil with high values of bulk density, cone index, and tensile strength after soil wetting. Slaking, slumping and coalescence of the soil caused soil surface to subside about 1.5 cm in 20 cm soil layer. After irrigation, cone index and tensile strength increased abruptly with decreasing of moisture content. It is shown that the dominant source of strength (cone index and tensile strength) gain during drying is the effective stress due to matric suction. In the absence of external loads, physical state (tilth) of the soil returned back to the original state. Therefore, soil slaking and slumping and rearrangement of particles along with the internal forces are the factors leading to soil hardness.
 
Keyword(s): EFFECTIVE STRESS, MATRIC SUCTION, CAPILLARY FORCES, SETTLEMENT, BULK DENSITY, CONE INDEX, TENSILE STRENGTH.
 
 
References: 
  • Not Registered.
  •  
  •  
 
Citations: 
  • Not Registered.
 
+ Click to Cite.
APA: Copy

MOSADEGHI, M., & HEMAT, A., & HAJABBASI, M. (2004). CHANGES IN SOME PHYSICAL AND MECHANICAL PROPERTIES OF A STRUCTURALLY UNSTABLE SOIL AFTER FLOOD IRRIGATION. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 8(1), 106-106. https://www.sid.ir/en/journal/ViewPaper.aspx?id=3995



Vancouver: Copy

MOSADEGHI M.R., HEMAT A., HAJABBASI M.A.. CHANGES IN SOME PHYSICAL AND MECHANICAL PROPERTIES OF A STRUCTURALLY UNSTABLE SOIL AFTER FLOOD IRRIGATION. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES). 2004 [cited 2021June19];8(1):106-106. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=3995



IEEE: Copy

MOSADEGHI, M., HEMAT, A., HAJABBASI, M., 2004. CHANGES IN SOME PHYSICAL AND MECHANICAL PROPERTIES OF A STRUCTURALLY UNSTABLE SOIL AFTER FLOOD IRRIGATION. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), [online] 8(1), pp.106-106. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=3995.



 
 
Yearly Visit 29
 
 
Latest on Blog
Enter SID Blog