List of Articles soil leaching

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  1 - Monthly variation of soil chemical properties In the mixed beech-hornbeam stand
  Maryam Moslehi Hashem Habashi Farhad Khormali Ramin Rahmani Mohamad Ali Pourmalekshah
  Base cation leaching as a process affecting nutrient transport, has a key role in preventing of soil macro element loss (especially in poor soil) that varies result in interaction relations of soil, climate and biological activity over time. So the objective of this stu More

  Base cation leaching as a process affecting nutrient transport, has a key role in preventing of soil macro element loss (especially in poor soil) that varies result in interaction relations of soil, climate and biological activity over time. So the objective of this study was to investigate monthly variation of base cations (calcium, magnesium, sodium and potassium) of shallow (0-10 cm) and deep (10-50 cm) soil leaching in the mixed beech-hornbeam stand located in district one of Shastkolate forest, Golestan province. Samples of different layers of soil leaching were taken after each rain from 2008/12/21 to 2009/12/21 and were studied in the laboratory. To investigate the monthly variation of base cation leaching, we used one way variance analysis and for mean comparison we used Duncan's test at the 95% level confidence. Result showed amounts of base cation leaching of soil layers in various months were different significantly. The least leached cation in shallow (in October) and deep soil (September, October and November) was for magnesium. Also the most leached cation in shallow soil was for potassium in August (8.54 kg ha) and in deep soil was for calcium in December (6.39 kg ha). Manuscript profile
• Open Access Article
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  2 - The effect of modifying saline and sodic soils on their properties
  Peyman Azizi
  One of the problems in the soils of arid and semi-arid regions is the accumulation and presence of soluble salts and exchangeable sodium in the soil. In order to use and exploit these soils, it is necessary to modify them. In this study, an intermittent washing method w More

  One of the problems in the soils of arid and semi-arid regions is the accumulation and presence of soluble salts and exchangeable sodium in the soil. In order to use and exploit these soils, it is necessary to modify them. In this study, an intermittent washing method was used to improve saline and sodium soils, and the water used for washing has an inappropriate quality (class C3-S1). As a result of soil modification and leaching, soil electrical conductivity (ECe) and exchangeable sodium percentage (ESP) significantly and significantly decrease, but the pH shows a slight increase. Also, in this study, the Gapon coefficient was calculated before and after washing, and its value decreased after washing. Manuscript profile