Penilaian ciri fiziko-kimia tanih pasir di persekitaran dataran banjir Sg. Langat, Selangor untuk penanaman rumput dan pertanian
Study on physico-chemical characteristics of sandy soil developed on flood plain of Sg. Langat was carried out. Three soil sampling stations (S1, S2 and S3) were selected to collect the soil to be tested. Physico-chemical characteristics determined were pH, electrical conductivity, organic matter...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Journal of Faculty of Social Sciences and Humanities. Universiti Kebangsaan Malaysia
2009
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| Online Access: | http://journalarticle.ukm.my/1592/1/sahibin09.pdf http://journalarticle.ukm.my/1592/ http://www.ukm.my/e-bangi/ |
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| Summary: | Study on physico-chemical characteristics of sandy soil developed on flood plain of Sg.
Langat was carried out. Three soil sampling stations (S1, S2 and S3) were selected to collect
the soil to be tested. Physico-chemical characteristics determined were pH, electrical
conductivity, organic matter content, size distribution, soil density, water retention potential
and evaporation potential. pH was determined in soil: water ration of 1:2.5, whereas
electrical conductivity was determined in saturated gypsum extract. Size distribution was
determined by pippette method together with dry sieving. Hydraulic conductivity was
measured using falling head method. Density and porosity were calculated and water
retention was determined by freely draining saturated soil to achieve field capacity. Evaporation was measured through daily decreased in soil weight. Values of soil pH ranged
from 4.93 to 5.57, whereas electrical conductivity was below 3.4 mS.cm-1. Soil was
dominated by very fine sand and fine sand particle size with their respective content in S1, S2
and S3 of 28.5, 29.5 and 25.0%, and 38.1, 23.2 and 24.2%. High sand content in the soil
rendered the water held by sand particles at low suction from -0.19 to -1.67 bar. Bulk density
of soil was moderate and organic matter content was very low (<1). Porosity of soil was
around 55%. Water content at field capacity was between 51 hingga 59%, whereas air
contents were between 41 to 49%. Based on these characteristics grasses as well as other
crops planted on this soil would experience low water availability if watering is not carried
out constantly |
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