Citation
A.M. Mokhtaruddin, . and S. Zulkifli, . (1996) Optimization of silt sand and clay contents for aggregate formation and stability of sandy tailings using organic amendments. [Proceedings Paper]
Abstract
Previous studies on the addition of organic amendments to sandy tailings have failed to demonstrate positive responses to aggregation and stability of these soils. To prove this point for sandy tailings 99 sand and experiment was conducted to see the effect of dried palm oil mill effluent POME on aggregation and stability of these soils. Results showed that the additon of POME cake even at the rate of 100 t haE-1 only improve aggregation and stability slightly. Of more important is that the extent of aggregation was very low agg. 2 mm was only 6. It is thought that the low content of very fine sand and silt in these soils both amounted to 5.8 and the absence of clay are the cause of this. Following the first study a second experiment was conducted to see the effect of different amounts of very fine sand silt and clay on the aggregation and stability of sandy tailings by POME. In this experiment sandy tailings were mixed with different proportion of slime slime is to provide the necessary fine materials and then treated with POME cake at the rate of 20 t/haE-1. results showed that mixtures of 20-45 slime and 55-80 sand which correspond to 7-15 clay and 2-25 silt very fine sand gave 13-40 fold increase in aggregation and 4.5-6.5 fold in stability over the control. In conclusion for physical improvement of sandy tailings 99 sand using organic amendments at least 7-15 clay and 20-25 silt very fine sand are needed. Their presence enhances aggregate formation and stability which have a great implication on utilization of these marginal soils for crop production.
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Abstract
Previous studies on the addition of organic amendments to sandy tailings have failed to demonstrate positive responses to aggregation and stability of these soils. To prove this point for sandy tailings 99 sand and experiment was conducted to see the effect of dried palm oil mill effluent POME on aggregation and stability of these soils. Results showed that the additon of POME cake even at the rate of 100 t haE-1 only improve aggregation and stability slightly. Of more important is that the extent of aggregation was very low agg. 2 mm was only 6. It is thought that the low content of very fine sand and silt in these soils both amounted to 5.8 and the absence of clay are the cause of this. Following the first study a second experiment was conducted to see the effect of different amounts of very fine sand silt and clay on the aggregation and stability of sandy tailings by POME. In this experiment sandy tailings were mixed with different proportion of slime slime is to provide the necessary fine materials and then treated with POME cake at the rate of 20 t/haE-1. results showed that mixtures of 20-45 slime and 55-80 sand which correspond to 7-15 clay and 2-25 silt very fine sand gave 13-40 fold increase in aggregation and 4.5-6.5 fold in stability over the control. In conclusion for physical improvement of sandy tailings 99 sand using organic amendments at least 7-15 clay and 20-25 silt very fine sand are needed. Their presence enhances aggregate formation and stability which have a great implication on utilization of these marginal soils for crop production.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal S590.2 S683 1995 Call Number |
| AGROVOC Term: | SILTY SOILS |
| AGROVOC Term: | SANDY SOILS |
| AGROVOC Term: | CLAY SOILS |
| AGROVOC Term: | SAND |
| AGROVOC Term: | CLAY |
| AGROVOC Term: | SOIL STABILIZATION |
| AGROVOC Term: | STABILITY |
| AGROVOC Term: | ORGANIC AMENDMENTS |
| AGROVOC Term: | SOIL ORGANIC MATTER |
| AGROVOC Term: | SOIL CHEMICOPHYSICAL PROPERTIES |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:27 |
| URI: | http://webagris.upm.edu.my/id/eprint/16313 |
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