Effects of nitrohumic acids on the aggregate stability of loamy sands

Nadia, binti Omar. (2006) Effects of nitrohumic acids on the aggregate stability of loamy sands. [E-LPTA] (Unpublished)

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Abstract

[n this research, effects of nitrohumic acids derived from Mukah coal on aggregate stability of loamy sand obtained from Batu Tujuh were determined. 6 rates of nitrohumic acids (0.0, 0.05, 0.10, 0.50, 1.0, 10 glkg) were applied to the soil at the incubation period of 15 days. 5 sequences of wetting and drying cycles (I, 2, 3, 4, 5 cycles) were can'ied out using 2-1 mm aggregates of treated soils and then evaluated for any improvement in aggregate stability. Compared with the control, the treated soils showed significant improvement in aggregate stability and also reduced substantially the dis aggregating effects of wetting and drying cycle. Low rate of nitrohumic acids (0.10 glkg) gave improvement but higher rates were ineffective and reduced the aggregate stability of the soils. However, the rate of 10.0 glkg al so showed some potential effect to the aggregate stability.

Item Type: E-LPTA
Additional Information: Project Report (B.Sc.) - Universiti Malaysia Sarawak, 2006.
Uncontrolled Keywords: Aggregate stability, wetting and drying cycles, Nitrohumic acids, loamy sand, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak
Subjects: Q Science > QE Geology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Saman
Date Deposited: 20 Mar 2018 05:05
Last Modified: 20 Mar 2018 05:06
URI: http://ir.unimas.my/id/eprint/19890

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