Mahmoud Ahmad Al-Samarrai
Department of Plant Production, Faculty of Agriculture, Mutah University, P.O. Box 7, Karak, Jordan
Mohammed Ali J. Al-Obaidi
Department of Plant Production, Faculty of Agriculture, Mutah University, P.O. Box 7, Karak, Jordan
ABSTRACT
In a laboratory study using calcareous soil, six sizes of soil aggregates (i.e. 25-20, 20-10, 10-5, 5-2, 2-1 and less than 1 mm in diameter). Two levels of moisture content (i.e. 50 and 100% of available water) were applied by using risen technique to investigate potassium release from the soil along with five periods of incubation (i.e. 1, 2, 4, 6 and 8 weeks) under controlled temperature of 25 ± 1°C. The results showed that potassium release increased with decreasing aggregate size of soil. The treatment of 100% of available water gave higher values of liberated potassium than the treatment of 50% available water for any given size of soil aggregate and incubation period. There was obviously a positive relationship between potassium liberation and the applied incubation period.
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How to cite this article
Mahmoud Ahmad Al-Samarrai and Mohammed Ali J. Al-Obaidi, 2005. An Investigation into Some Effects of the Interaction Between Aggregate Size, Water Content and Incubation Periods on Potassium Release of Calcareous Soil. Pakistan Journal of Biological Sciences, 8: 146-148.
DOI: 10.3923/pjbs.2005.146.148
URL: https://scialert.net/abstract/?doi=pjbs.2005.146.148
DOI: 10.3923/pjbs.2005.146.148
URL: https://scialert.net/abstract/?doi=pjbs.2005.146.148
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