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Evaluation of rock fragments for use as mulching materials
Other Title(s)
تقييم بعض حبيبات الصخور كمواد تغطية
Joint Authors
Nassar, Ibrahim Nassar
al-Ridhaiman, Khalid Nasir
Source
Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences
Issue
Vol. 25, Issue 1 (30 Jun. 2014), pp.133-146, 14 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
2014-06-30
Country of Publication
Saudi Arabia
No. of Pages
14
Main Subjects
Earth Sciences, Water and Environment
Topics
Abstract EN
Four mixtures of rock fragments (<8-mm-old, <15-mm-old, <8-mm-new and <15-mm-new) and sandy soil were studied.
Porosity of the rocii materials ranged from 0.45 to 0.61 while it was 0.29 for the sandy soil.
Saturated hydraulic conductivity was 1.48x10'^ m/s for the sandy soil while it ranged from 55x10'^ to 64x10'^ m/s for the rock fragments.
EC values for the 8-mm-new and 15-mm-new were 0.24 and 0.34 dS/m, respectively.
The respective pH values were 8.17 and 8.41.
For measuring isothermal cumulative evaporation, the fragments and sandy soil were packed in a measuring cylinder (one-liter) then saturated with distilled water.
A similar cylinder was filled with distilled water as well.
The evaporation took place at the cylinder tops under laboratory conditions (21-22 °C) for 22 days.
Percentages of final cumulative evaporation of rocks or sandy soil to evaporation from the free-water surface were 96.2, 71.5, 71.5, 72.1 and 66.1% for the soil, 8-mm-new, 15-mm-new, 15-mm-old and 8-mm-old, respectively.
Depths of water table for minimum evaporation were 0.084, 0.065, 0.086, 0.086 m for the 8-mm-new, 15-mm-new, 8-mm-oldand 15-mm-old, respectively.
Therefore, it is recommended to place a layer (0,065 - 0.085 m) of these rocks on a soil surface for evaporation suppression in orchard or hydroponic culture
American Psychological Association (APA)
Nassar, Ibrahim Nassar& al-Ridhaiman, Khalid Nasir. 2014. Evaluation of rock fragments for use as mulching materials. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences،Vol. 25, no. 1, pp.133-146.
https://search.emarefa.net/detail/BIM-707872
Modern Language Association (MLA)
Nassar, Ibrahim Nassar& al-Ridhaiman, Khalid Nasir. Evaluation of rock fragments for use as mulching materials. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences Vol. 25, no. 1 (2014), pp.133-146.
https://search.emarefa.net/detail/BIM-707872
American Medical Association (AMA)
Nassar, Ibrahim Nassar& al-Ridhaiman, Khalid Nasir. Evaluation of rock fragments for use as mulching materials. Journal of King Abdul Aziz University : Meteorology, Environment and Arid land Agriculture Sciences. 2014. Vol. 25, no. 1, pp.133-146.
https://search.emarefa.net/detail/BIM-707872
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 144-145
Record ID
BIM-707872